K. Kitayama, M. Nakamura, Y. Igasaki, and K. Kaneda, “Image fiber-optic
two-dimensional parallel links based upon optical space-CDMA: experiment,”
IEEE/OSA J. Lightwave Technol., vol. 15, no. 2, pp. 202-212, Feb. 1997. DOI: 10.1109/50.554323
M. Nakamura and K. Kitayama, “System performances of optical space code-division
multiple-access-based fiber-optic two-dimensional parallel data link,”
OSA Appl. Opt., vol. 37, no. 14, pp. 2915-2924, May 1998. DOI: 10.1364/AO.37.002915
M. Nakamura, K. Kitayama, Y. Igasaki, and K. Kaneda, “Space-CDMA based
2D parallel optical transmission over record length (100 m) long image
fibre,” IEE Electron. Lett., vol. 34, no. 11, pp. 1126-1127, May 1998. DOI: 10.1049/el:19980752
M. Nakamura, K. Kitayama, Y. Igasaki, and K. Kaneda, “Four-channel, 8 x 8 bit, two-dimensional parallel transmission by use of space-code-division multiple-access encoder and decoder modules,” OSA Appl. Opt., vol. 37, no. 20, pp. 4389-4398, Jul. 1998. DOI: 10.1364/AO.37.004389
M. Nakamura, T. Otsubo, and K. Kitayama, “Skew characteristics of image
fiber for high-speed 2-D parallel optical data link,” IEEE/OSA J. Lightwave Technol., vol. 18, no. 9, pp. 1214-1219, Sep. 2000. DOI: 10.1109/50.871697
M. Nakamura and K. Kitayama, “High-speed 2-D parallel optical interconnects
using image fibers with VCSEL/PD arrays,” IEICE Trans. Electron., vol. E84-C, no. 3, pp. 282-287, Mar. 2001.
M. Nakamura, K. Kitayama, N. Shamoto, and K. Kaneda, “Two-dimensional erbium-doped
image fiber amplifier (EDIFA),” IEEE J. Select. Topics Quantum Electron., vol. 7, no. 3, pp. 434-438, May/Jun. 2001. DOI: 10.1109/2944.962267
M. Nakamura, K. Kitayama, Y. Igasaki, N. Shamoto, and K. Kaneda, “Image
fiber optic space-CDMA parallel transmission experiment using 8 x 8 VCSEL/PD
arrays,” OSA Appl. Opt., vol. 41, no. 32, pp. 6901-6906, Nov. 2002. DOI: 10.1364/AO.41.006901
G-W. Lu, M. Nakamura, Y. Kamio, and T. Miyazaki, “40-Gb/s QPSK and 20-Gb/s
PSK with inserted pilot symbols using self-homodyne detection,” Opt. Express, vol. 15, no. 12, pp. 7660-7666, Jun. 2007. DOI: 10.1364/OE.15.007660
M. Nakamura, Y. Kamio, G-W. Lu, and T. Miyazaki, “Ultimately phase-noise tolerant QPSK homodyne using a spectrum-sliced ASE light source,” IEICE Electron. Express, vol. 4, no. 13, pp. 406-410, Jul. 2007. DOI: 10.1587/elex.4.406
M. Nakamura, Y. Kamio, and T. Miyazaki, “Linewidth-tolerant 10-Gbit/s 16-QAM
transmission using a pilot-carrier based phase-noise cancelling technique,”
Opt. Express, vol. 16, no. 14, pp. 10611-10616, Jul. 2008. DOI: 10.1364/OE.16.010611
M. Nakamura, Y. Kamio, and T. Miyazaki, “Linewidth-tolerant 30 Gbit/s 8-PSK
self-homodyne using single modulator and phase-noise cancelling technique,”
IET Electron. Lett., vol. 45, no. 7, pp. 368-369, Mar. 2009. DOI: 10.1049/el.2009.3042
M. Nakamura, Y. Kamio, and T. Miyazaki, “20-Gbit/s QPSK self-homodyne transmission experiment using a multi-wavelength Fabry-Perot laser diode,” IEICE Electron. Express, vol. 6, no. 17, pp. 1281-1285, Sep. 2009. DOI: 10.1587/elex.6.1281
M. Nakamura, Y. Kamio, and T. Miyazaki, “DGD- and dispersion-tolerance
of QPSK self-homodyne detection based on a polarization-multiplexed pilot
carrier,” IEICE Electron. Express, vol. 6, no. 17, pp. 1286-1290, Sep. 2009. DOI: 10.1587/elex.6.1286
M. Nakamura, Y. Kamio, and T. Miyazaki, “Coherence-multiplexing experiment
with 10-Gsymbol/s BPSK and QPSK signals using spectrum-sliced ASE,” IEICE Electron. Express, vol. 6, no. 18, pp. 1345-1349, Sep. 2009. DOI: 10.1587/elex.6.1345
M. Nakamura, Y. Kamio, and T. Miyazaki, “30-Gbit/s 64-QAM transmission
over 60-km SSMF using phase-noise cancelling technique and ISI suppression
based on electronic digital processing,” IET Electron. Lett., vol. 45, no. 25, pp. 1339-1340, Dec. 2009. DOI: 10.1049/el.2009.2395
M. Nakamura, Y. Kamio, and T. Miyazaki, “Linewidth-tolerant real-time 40-Gbit/s
16-QAM self-homodyne detection using a pilot-carrier and ISI suppression
based on electronic digital processing,” OSA Opt. Lett., vol. 35, no. 1, pp. 13-15, Jan. 2010. DOI: 10.1364/OL.35.000013
S. Shinada, M. Nakamura, Y. Kamio, and N. Wada, “16-QAM optical packet
switching and real-time self-homodyne detection using polarization-multiplexed
pilot-carrier,” Opt. Express, vol. 20, no. 26, pp. B535-B542, Dec. 2012. DOI: 10.1364/OE.20.00B535
R. S. Luis, A. Shahpari, J. D. Reis, R. Ferreira, Z. Vujicic, B. J. Puttnam,
J. M. D. Mendinueta, M. Lima, M. Nakamura, Y. Kamio, N. Wada, A. Teixeira,
"Ultra high capacity self-homodyne PON with simplified ONU and burst-mode
upstream," IEEE Photon. Technol. Lett., vol.26, no. 7, pp. 686-689, Apr. 2014. DOI: 10.1109/LPT.2014.2302000
B. J. Puttnam, R. S. Luis, J. M. D. Mendinueta, J. Sakaguchi, W. Klaus,
Y. Kamio, M. Nakamura, N. Wada, Y. Awaji, A. Kanno, T. Kawanishi, and T.
Miyazaki, "Self-homodyne detection in optical communication systems,"
MDPI Photonics, vol. 1, issue 2, pp. 110-130, May 2014. DOI: 10.3390/photonics1020110
(invited paper)
Z. Vujicic, R. S. Luis, J. M. D. Mendinueta, A. Shahpari, N. B. Pavlovic,
B. J. Puttnam, Y. Kamio, M. Nakamura, N. Wada, and A. Teixeira, "Demonstration
of wavelength-shared coherent PON using RSOA and simplified DSP,"
IEEE Photon. Technol. Lett., vol. 26, no. 21, pp. 2142-2145, Nov. 2014. DOI: 10.1109/LPT.2014.2348949
R. S. Luis, B. J. Puttnam, D. M. J. Manuel, S. Shinada, M. Nakamura, Y.
Kamio, and N. Wada, "Digital self-homodyne detection," IEEE Photon. Technol. Lett., vol. 27, no. 6, pp. 608-611, Mar. 2015. DOI: 10.1109/LPT.2014.2386328
Z. Vujicic, R. S. Luis, J. M. D. Mendinueta, A. Shahpari, N. B. Pavlovic,
B. J. Puttnam, Y. Kamio, M. Nakamura, N. Wada, and A. Teixeira, "Self-homodyne
detection based fully coherent reflective PON using RSOA and simplified
DSP," IEEE Photon. Technol. Lett., vol. 27, no. 21, pp. 2226-2229, Nov. 2015. DOI: 10.1109/LPT.2015.2457778
R. Nakamura, K. Amino, K. Sekine, K. Wada, and M. Nakamura, "Multi-level
pre-equalization using binary analog FIR filters based on 28-nm FD-SOI
for 20-Gb/s 4-PAM multi-mode fiber transmission," IEICE Commun. Express, vol. 6, no. 4, pp. 154-159, Apr. 2017. DOI: 10.1587/comex.2016XBL0210
K. Osato and M. Nakamura, "Two-tone signal generation using a dual-parallel
Mach-Zehnder modulator for third-order harmonics suppression," IEICE Commun. Express, vol. 6, no. 5, pp. 204-208, May 2017. DOI: 10.1587/comex.2017XBL0016
S. Owaki and M. Nakamura, "Compensation of optical nonlinear waveform
distortion using neural-network based digital signal processing,"
IEICE Commun. Express, vol. 6, no. 8, pp. 484-489, Aug. 2017. DOI: 10.1587/comex.2017XBL0078
R. Nakamura, K. Amino, K. Sekine, K. Wada, and M. Nakamura, "Multilevel
pre-equalization using an analog FIR filter with multiple binary delay
lines for 20-Gb/s 4-PAM multimode fiber transmission," IEICE Electron. Express, vol. 15, no. 1, pp. 1-6, Jan. 2018. DOI: 10.1587/elex.14.20171117
S. Owaki, Y. Fukumoto, T. Sakamoto, N. Yamamoto, and M. Nakamura, "Experimental
demonstration of SPM compensation based on digital signal processing using
a three-layer neural-network for 40-Gbit/s optical 16QAM signal,"
IEICE Commun. Express, vol. 7, no. 1, pp. 13-18, Jan. 2018. DOI: 10.1587/comex.2017XBL0148
S. Owaki and M. Nakamura, "XPM compensation in optical fiber transmission
systems using neural-network-based digital signal processing," IEICE Commun. Express, vol. 7, no. 1, pp. 31-36, Jan. 2018. DOI: 10.1587/comex.2017XBL0149
R. Nakamura, S. Owaki, K. Amino, K. Sekine, K. Wada, and M. Nakamura, "16-QAM
signal pre-equalization using multiple binary analog FIR filters based
on 28-nm FD-SOI for dispersion compensation," IEICE Commun. Express, vol. 7, no. 2, pp. 37-42, Feb. 2018. DOI: 10.1587/comex.2017XBL0163
S. Owaki and M. Nakamura, "FWM compensation using artificial-neural-network-based
digital signal processing and a phase-locked multicarrier source,"
IEICE Commun. Express, vol. 8, no. 7, pp. 245-250, Jul. 2019. DOI: 10.1587/comex.2019XBL0042
M. Nakamura, Y. Fukumoto, and S. Owaki, "Size of an artificial neural-network
for simultaneous compensation of linear and nonlinear optical waveform
distortion," IEICE Commun. Express, vol. 8, no. 7, pp. 269-274, Jul. 2019. DOI: 10.1587/comex.2019XBL0049
M. Nakamura, Y. Fukumoto, S. Owaki, T. Sakamoto, and N. Yamamoto, "Experimental
demonstration of SPM compensation using a complex-valued neural network
for 40-Gbit/s optical 16QAM signals," IEICE Commun. Express, vol. 8, no. 8, pp. 281-286, Aug. 2019. DOI: 10.1587/comex.2019XBL0043
M. Nakamura, N. Sumimoto, Y. Takanashi, and R. Nakamura, "SPM and
phase-noise tolerant optical self-homodyne using a polarization-multiplexed
and intensity-modulated pilot-carrier," IEICE Commun. Express, vol. 8, no. 8, pp. 287-292, Aug. 2019. DOI: 10.1587/comex.2019XBL0044
M. Nakamura, Y. Takanashi, S. Owaki, and R. Nakamura, "SPM and phase-noise cancellation using time-division-multiplexed and intensity-modulated pilot symbols," IEICE Commun. Express, vol. 8, no. 8, pp. 293-298, Aug. 2019. DOI: 10.1587/comex.2019XBL0056
M. Nakamura, K. Osato, and T. Nishiaki, "Quadruple-frequency optical
two-tone signal generation using a DP-QPSK modulator," IEICE Commun. Express, vol. 8, no. 8, pp. 299-304, Aug. 2019. DOI: 10.1587/comex.2019XBL0068
M. Nakamura, S. Kashiwagi, Y. Takanashi, R. Nakagawa, and R. Nakamura,
"Novel optical twin-SSB detection scheme using an electric butterfly
operation," IEICE Commun. Express, vol. 8, no. 8, pp. 305-310, Aug. 2019. DOI: 10.1587/comex.2019XBL0071
K. Ikuta, Y. Otsuka, Y. Fukumoto, and M. Nakamura, "Overestimation
problem with ANN and VSTF in optical communication systems," IET Electron. Lett., vol. 55, no. 19, pp. 1051-1053, Sep. 2019. DOI: 10.1049/el.2019.2008
Y. Kurokawa, T. Kyono, Y. Fukumoto, N. Sumimoto, and M. Nakamura, "Polarization
demultiplexing and optical nonlinearity compensation based on artificial
neural networks," IEICE Commun. Express, vol. 8, no. 12, pp. 542-547, Dec. 2019. DOI: 10.1587/comex.2019GCL0003.
T. Nishiaki, K. Osato, and M. Nakamura, "Sextuple-frequency two-tone
signal generation using two cascaded Mach-Zehnder modulators for multiple
harmonics cancelling," IEICE Commun. Express, vol. 9, no. 8, pp. 377-382, Aug. 2020. DOI: 10.1587/comex.2020XBL0048
M. Nakamura, N. Sumimoto, Y. Takanashi, and R. Nakagawa, "XPM and
phase-noise compensation using a polarization-multiplexed and intensity-modulated
pilot carrier," IEICE Commun. Express, vol. 10, no. 1, pp. 18-23, Jan. 2021. DOI: 10.1587/comex.2020XBL0130
R. Nakagawa, Y. Takanashi, and M. Nakamura, "Numerical analysis on
fiber-nonlinearity compensation for 4ASK 100-km SSMF transmission by using
electrical butterfly operation for received signal sidebands," IEICE Commun. Express, vol. 10, no. 2, pp. 87-92, Feb. 2021. DOI: 10.1587/comex.2020XBL0155
Y. Sato, T. Kyono, K. Ikuta, Y. Kurokawa, and M. Nakamura, "Equalization
of optical nonlinear waveform distortion using SVM-based digital signal
processing," IEICE Commun. Express, vol. 10, no. 8, pp. 552-557, Aug. 2021. DOI: 10.1587/comex.2021ETL0022
Y. Miyashita, T. Kyono, K. Ikuta, Y. Kurokawa, and M. Nakamura, "Activation functions of artificial-neural-network-based nonlinear equalizers for optical nonlinearity compensation," IEICE Commun. Express, vol. 10, no. 8, pp. 558-563, Aug. 2021. DOI: 10.1587/comex.2021ETL0024
J. Nakamura, K. Ikuta, and M. Nakamura, "Overfitting characteristics
of four-layer-deep-neural-network-based nonlinear equalizer for optical
communication systems," IEICE Commun. Express, vol. 11, no. 7, pp. 368-373, Jul. 2022. DOI: 10.1587/comex.2022XBL0035
K. Ikuta, J. Nakamura, and M. Nakamura, "Overfitting problem of ANN-
and VSTF-based nonlinear equalizers trained on repeated random bit sequences,"
IEICE Trans. Commun., vol. E107-B, no. 4, pp. 349-356, Apr. 2024. DOI: 10.23919/transcom.2023EBP3121
K. Ikuta, Y. Ito, and M. Nakamura, "Optical nonlinearity mitigation
using reservoir computing with tapped-delay lines," IEICE Commun. Express, vol. 13, no. 9, pp. 384-388, Sep. 2024. DOI: 10.23919/comex.2024XBL0098
K. Ikuta, Y. Ito, T. Sakamoto, N. Yamamoto, and M. Nakamura, "Fiber
nonlinearity compensation using nonlinear equalizer based on complex-valued
reservoir computing," IEICE Trans. Commun., vol. E108-B, no. 3, pp. 250-259, Mar. 2025. DOI: 10.23919/transcom.2024EBP3072
Y. Ito, K. Ikuta, T. Yamada, T. Yamamoto, and M. Nakamura, "Overfitting characteristics of reservoir-computing-based nonlinear equalizer trained on PRBS and repeated random bit sequence," to appear in IEICE Trans. Commun., vol. E108-B, no. 10, pp. - , Oct. 2025.
国際会議(査読有り)
K. Kitayama, M. Nakamura, Y. Igasaki, and K. Kaneda, “Image-fiber-optic
space-CDMA for parallel image transmission: experiment,” OSA International
Topical Meeting on Optical Computing (OC'96, Sendai, Japan), OWD4, pp.
10-11 Apr. 1996. (post deadline paper)
K. Kitayama, M. Nakamura, Y. Igasaki, and K. Kaneda, “Two-dimensional parallel optical data link: experiment,” The 3rd International Conference on Massively Parallel Processing Using Optical Interconnections (MPPOI'96, Maui, Hawaii), pp. 206-214, Oct. 1996.
M. Nakamura, K. Kitayama, Y. Igasaki, and K. Kaneda, “Error-free transmission in optical space -CDMA for 2-D parallel data links,” OSA International Topical Meeting on Optics in Computing (OC'97, Incline Village, Nevada), OThD9, pp. 212-214, Mar. 1997.
M. Nakamura, K. Kitayama, Y. Igasaki, and K. Kaneda, “Four multiplexed, 8x8-bit 2-D Parallel transmission based upon Space-CDMA,” The 4th International Conference on Massively Parallel Processing Using Optical Interconnections (MPPOI'97, Montreal, Canada), S8-4, pp. 202-208, Jun. 1997.
M. Nakamura, K. Kitayama, Y. Igasaki, and K. Kaneda, “Visual alignment using image fiber micro-optics for long-distance, ultra-high throughput space-CDMA based 2-D parallel optical data link,” The 5th International Conference on Massively Parallel Processing Using Optical Interconnections (MPPOI'98, Las Vegas, Nevada), S6-3, pp. 229-236, Jun. 1998.
M. Nakamura and K. Kitayama, “Visual alignment using image fiber coupler for ultra-high throughput space-CDMA based 2-D parallel optical data link,” 3rd Optoelectronics and Communications Conference (OECC'98, Chiba, Japan), 13A2-6, pp. 28-29, Jul. 1998.
M. Nakamura and K. Kitayama, “Image fiber-optic 2-D parallel optical interconnects
based on space-CDMA,” SPIE Photonics WEST, Optoelectronics'99, Optoelectronic
Interconnects VI (San Jose, California), 3632-36, Jan. 1999, / Proc. SPIE,
vol. 3632, Optoelectronic Interconnects VI, J. P. Bristow and S. Tang,
eds. (SPIE Press, Bellingham, Wash., 1999), pp. 331-338. (invited paper)
M. Nakamura and K. Kitayama, “Image fiber coupler using graded index lenses,” International Topical Workshop on Contemporary Photonic Technologies (CPT2000, Tokyo, Japan), Tc02, pp. 75-76, Jan. 2000.
M. Nakamura, T. Otsubo, and K. Kitayama, “Image fiber skew characteristics,”
SPIE Photonics WEST, Optoelectronics 2000, Optoelectronic Interconnects
VII (San Jose, California), 3952A-07, Jan. 2000, / Proc. SPIE, vol. 3952,
Optoelectronic Interconnects VII; Photonics Packaging and Integration II,
M. R. Feldman, R. L. Li, W. B. Matkin, and S. Tang, eds, (SPIE Press, Bellingham,
Wash., 2000), pp. 66-73.
M. Nakamura and K. Kitayama, “Error-free transmission of image fiber-optic 2-D parallel interconnection using VCSEL/PD arrays: experiment,” Optical Fiber Communication Conference and Exhibit 2000 (OFC2000, Baltimore, Maryland), ThK2, Mar. 2000.
M. Nakamura and K. Kitayama, “Image fiber coupler design and its performance,”
SPIE Photonics WEST, Optoelectronics 2001, Optoelectronic Interconnects
VIII (San Jose, California), 4292-17, Jan. 2001 / Proc. SPIE, vol. 4292,
Optoelectronic Interconnects VIII, S. Tang, Y. Li, eds. (SPIE Press, Bellingham,
Wash., 2001), pp. 123-130.
M. Nakamura and K. Kitayama, “Two-dimensional erbium-doped image fiber amplifier,” The 5th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI2001, Orlando, Florida), IS0045404, Jul. 2001. (invited paper)
M. Nakamura, M. Akiba, T. Kuri, and N. Ohtani, “Experimental evaluation
of spot dancing of laser beam in atmospheric propagation using high-speed
camera,” SPIE Photonics WEST, LASE2003, Atmospheric Propagation (San Jose,
California), 4976-22, Jan. 2003. / Proc. SPIE, vol. 4976, Atmospheric Propagation,
C. Y. Young and J. S. Stryjewski, eds, (SPIE Press, Bellingham, Wash.,
2003), pp. 149-158.
M. Nakamura and K. Kitayama, “Image-fiber coupler using graded-index rod-lens based 4f imaging microoptics,” OSA International Topical Meeting on Optics in Computing (OC'03, Washington, DC), OThD3, Jun. 2003.
T. Miyazaki, M. Nakamura, and Y. Kamio, “Linewidth-tolerant multi-level homodyne transmission,” Conference on Lasers and Electro-Optics 2006 (CLEO2006, Long Beach, California), CMDD4, May 2006.
M. Nakamura, Y. Kamio, and T. Miyazaki, “PMD- and dispersion-tolerance of RZ-QPSK homodyne detection using a polarization-multiplexed pilot carrier,” The 11th Optoelectronics and Communications Conference (OECC2006, Kaohsiung, Taiwan), 5F3-2, Jul. 2006.
M. Nakamura, Y. Kamio, and T. Miyazaki, “PMD- and dispersion-tolerance of QPSK homodyne detection using a polarization-multiplexed pilot carrier,” 32nd European Conference on Optical Communication (ECOC2006, Cannes, France), Mo4.2.5, Sep. 2006.
M. Nakamura, Y. Kamio, G-W. Lu, and T. Miyazaki, “Ultimate linewidth-tolerant 20-Gbps QPSK-homodyne transmission using a spectrum-sliced ASE light source,” Optical Fiber Communication Conference and Exposition 2007 (OFC2007, Anaheim, California), OThD4, Mar. 2007.
G-W. Lu, M. Nakamura, Y. Kamio, and T. Miyazaki, “40-Gb/s QPSK with inserted pilot symbols using selfhomodyne detection,” Optical Fiber Communication Conference and Exposition 2007 (OFC2007, Anaheim, California), OMP4, Mar. 2007.
M. Nakamura, Y. Kamio, and T. Miyazaki, “QPSK-homodyne transmission using a multi-wavelength fabry-perot laser diode,” Conference on Lasers and Electro-Optics 2007 (CLEO2007, Baltimore, California), CMH4, May 2007.
M. Nakamura, Y. Kamio, and T. Miyazaki, “Linewidth-tolerant 8PSK by pilot-carrier added homodyne,” The 12th Optoelectronics and Communications Conference (OECC2007, Yokohama, Japan), 12B1-2, Jul. 2007.
Y. Kamio, M. Nakamura, and T. Miyazaki, “Phase noise-tolerance of optical M-QAM signals in self-homodyne detection with polarization-multiplexed pilot carrier,” The 12th Optoelectronics and Communications Conference (OECC2007, Yokohama, Japan), 12B1-4, Jul. 2007.
Y. Kamio, M. Nakamura, and T. Miyazaki, “80Gb/s-256QAM format using phase noise tolerant pilot carrier aided homodyne detection,” LEOS Summer Topical Meetings (Portland, Oregon), TuE3.2, Jul. 2007.
M. Nakamura, Y. Kamio, and T. Miyazaki, “Pilot-carrier based linewidth-tolerant 8PSK self-homodyne using only one modulator,” 33rd European Conference on Optical Communication (ECOC2007, Berlin, Germany), 8.3.6, Sep. 2007.
Y. Kamio, M. Nakamura, and T. Miyazaki, “80-Gb/s 256-QAM signals using phase noise and DGD-tolerant pilot-carrier-aided homodyne detection,” 33rd European Conference on Optical Communication (ECOC2007, Berlin, Germany), P089, Sep. 2007.
T. Miyazaki, M. Nakamura, and Y. Kamio, “Phase noise tolerant & real
time multilevel homodyne,” Asia Optical Fiber Communication & Optoelectronic
Exposition & Conference (AOE2007, Shanghai, China), SC1.S3.3, Oct.
2007. (invited paper)
M. Nakamura, Y. Kamio, and T. Miyazaki, “Linewidth-tolerant real-time 10 Gbit/s 16QAM homodyne using a polarization-multiplexed pilot-carrier,” The 13th Optoelectronics and Communications Conference (OECC2008, Sydney, Australia), WeF-5, Jul. 2008.
Y. Kamio, M. Nakamura, and T. Miyazaki, “Pre-equalization for optical 16-QAM in a vector modulator,” The 13th Optoelectronics and Communications Conference (OECC2008, Sydney, Australia), TuA-5, Jul. 2008.
M. Nakamura, Y. Kamio, and T. Miyazaki, “Real-time 40-Gbit/s 16-QAM self-homodyne using a polarization-multiplexed pilot-carrier,” LEOS Summer Topical Meetings (Acaplco, Mexico), WC2.3, Jul. 2008.
Y. Kamio, M. Nakamura, and T. Miyazaki, “Pre-equalization for 10 Gsymbol/s 16-QAM in a vector modulator,” LEOS Summer Topical Meetings (Acaplco, Mexico), MC1.2, Jul. 2008.
M. Nakamura, Y. Kamio, and T. Miyazaki, “Linewidth-tolerant, ISI-suppressed 15-Gbit/s 64-QAM transmission over 120-km SSMF,” 34th European Conference on Optical Communication (ECOC2008, Brussels, Belgium), Tu.1.E.5, Sep. 2008.
Y. Kamio, M. Nakamura, and T. Miyazaki, “ISI Pre-equalization in a vector modulator for 5 Gsymbol/s 64-QAM,” 34th European Conference on Optical Communication (ECOC2008, Brussels, Belgium), Tu.1.D.3, Sep. 2008.
M. Nakamura and Y. Kamio, “30-Gbps (5-Gsymbol/s) 64-QAM self-homodyne transmission
over 60-km SSMF using phase-noise cancelling technique and ISI-suppression
based on electronic digital processing,” Optical Fiber Communication Conference
and Exposition 2009 (OFC2009, San Diego, California), OWG4, Mar. 2009.
H. Furukawa, N. Wada, M. Nakamura, and T. Miyazaki, “Demonstration of 200 Gbit/s DWDM / NRZ-DQPSK optical packet switching and buffering,” 35th European Conference on Optical Communication (ECOC2009, Viena, Austria), 6.3.2, Sep. 2009.
S. Shinada, H. Furukawa, M. Nakamura, and N. Wada, “Record switching throughput
of 1.28-Tbit/s/port (64-wavelength x 20-Gbit/s) by DWDM / NRZ-DQPSK optical
packet switch system,” 35th European Conference on Optical Communication
(ECOC2009, Viena, Austria), PD3.1, Sep. 2009. (post deadline paper)
M. Nakamura, Y. Kamio, and T. Miyazaki, “M-PSK versatile modulation using a single-electrode straight-line phase modulator and digital signal processing for ISI-suppression,” Optical Fiber Communication Conference and Exposition 2010 (OFC2010, San Diego, California), OMK8, Mar. 2010.
M. Nakamura, Y. Kamio, and T. Miyazaki, “Experimental demonstration of 16-QAM transmission with a single dual-drive Mach-Zehnder modulator,” Optical Fiber Communication Conference and Exposition 2011 (OFC2011, Los Angeles, California), JThA042, Mar. 2011.
S. Shinada, M. Nakamura, Y. Kamio, and N. Wada, “16-QAM optical packet switching with real-time self-homodyne detection using polarization-multiplexed pilot-carrier,” 38th European Conference on Optical Communication (ECOC2012, Amsterdam, Netherlands), We.2.A.2, Sep. 2012.
R. S. Luis, B. J. Puttnam, J.-M. D. Mendinueta, J. Sakaguchi,S. Shinada, M. Nakamura, Y. Kamio, and Naoya Wada, “Self-homodyne detection of polarization-multiplexed pilot tone signals using a polarization diversity coherent receiver,” 39th European Conference on Optical Communication (ECOC2013, London, UK), P.4.2, Sep. 2013.
R. S. Luis, B. J. Puttnam, J.-M. D. Mendinueta, J. Sakaguchi, S. Shinada,
M. Nakamura, Y. Kamio, and N. Wada, “Self-homodyne coherent OFDM packet
transmission without carrier frequency or common phase error estimation,”
4th International Conference on Photonics (ICP2013, Melaka, Malaysia),
D3-AM2-C, Oct. 2013.
R. S. Luis, B. J. Puttnam, J. M. D. Mendinueta, S. Shinada, M. Nakamura,
Y. Kamio, and N. Wada, "Digital signal processing for digital coherent
self homodyne detection," Optoelectronics and Communications Conference
(OECC2014, Melburne, Australia), TH10E-4, Jul. 2014.
T. Koike, M. Nakamura, W. Klaus, Y. Awaji, and N. Wada, "Pumping method
for multi-core erbium-doped double-clad fiber amplifier based on higher-order
mode coupling," Optoelectronics and Communications Conference (OECC2015,
Shanghai, China), WPe.48, Jul. 2015.
R. Nakamura, T. Koike, M. Nakamura, W. Klaus, Y. Awaji, and N. Wada, "Pumping
of 7-core erbium-doped double-clad fiber amplifier based on higher-order
mode coupling," Numerical Simulation of Optoelectronic Devices (NUSOD2015,
Taipei, Taiwan), MP13, Sep. 2015.
K. Osato and M. Nakamura, "Third-order harmonics suppression in two-tone
signal generation using a dual-parallel mach-zehnder modulator," Optoelectronics
and Communications Conference (OECC2016, Niigata, Japan), WA2-18, Jul.
2016.
R. Nakamura, K. Amino, K. Sekine, K. Wada, and M. Nakamura, "Multi-level
pre-equalization using analog FIR filters based on 28-nm FD-SOI for 20-Gb/s
4-PAM multi-mode fiber transmission," Optoelectronics and Communications
Conference (OECC2016, Niigata, Japan), WA2-37, Jul. 2016.
S. Owaki and M. Nakamura, "Equalization of optical nonlinear waveform
distortion using neural-network based digital signal processing,"
Optoelectronics and Communications Conference (OECC2016, Niigata, Japan),
WA2-40, Jul. 2016.
Y. Kitani, K. Wada, K. Sekine, and M. Nakamura, "Analog FIR filter
derived from the generating function for the bernoulli numbers," 2017
IEEE 15th International New Circuits and Systems Conference (NEWCAS2017,
Strasbourg, France), Paper1056, Jun. 2017.
S. Owaki and M. Nakamura, "Simultaneous compensation of waveform distortion
caused by chromatic dispersion and SPM using a three-layer neural-network,"
Optoelectronics and Communications Conference (OECC2017, Singapore), P2-158,
Aug. 2017.
Y. Fukumoto, S. Owaki, and M. Nakamura, "Effect of number of neurons
of a neural-network on compensation performance of SPM non-linear waveform
distortion," Optoelectronics and Communications Conference (OECC2017,
Singapore), P3-008, Aug. 2017.
N. Sumimoto, R. Nakamura, and M. Nakamura, "SPM and phase-noise compensation
using a polarization-multiplexed and intensity-modulated pilot-carrier,"
Optoelectronics and Communications Conference (OECC2017, Singapore), P3-009,
Aug. 2017.
S. Kashiwagi, R. Nakamura, and M. Nakamura, "Novel twin-SSB-SC method using a DP-QPSK modulator," Optoelectronics and Communications Conference (OECC2017, Singapore), P3-010, Aug. 2017.
Y. Takanashi, S. Owaki, R. Nakamura, and M. Nakamura, "SPM and phase-noise
compensation using a time-division-multiplexed and intensity modulated
pilot-carrier," Optoelectronics and Communications Conference (OECC2017,
Singapore), P3-014, Aug. 2017.
K. Osato and M. Nakamura, "Quadruple frequency two-tone signal generation
using a DP-QPSK modulator," Optoelectronics and Communications Conference
(OECC2017, Singapore), P4-142, Aug. 2017.
T. Nishiaki, K. Osato, and M. Nakamura, "Sextuple frequency two-tone
signal generation using cascaded Mach-Zehnder modulators for multiple harmonics
cancelling," Optoelectronics and Communications Conference (OECC2018,
Jeju, Korea), P1-10, Jul. 2018.
Y. Fukumoto, S. Owaki, T. Sakamoto, N. Yamamoto, and M. Nakamura, "Experimental demonstration of SPM compensation based on digital signal processing using a complex-valued neural network for 40-Gbit/s optical 16QAM signals," Optoelectronics and Communications Conference (OECC2018, Jeju, Korea), P1-20, Jul. 2018.
N. Sumimoto, Y. Takanashi, and M. Nakamura, "Nonlinear distortion and phase-noise compensation using a polarization-multiplexed and intensity-modulated pilot-carrier," Optoelectronics and Communications Conference (OECC2018, Jeju, Korea), P1-21, Jul. 2018.
Y. Takanashi, S. Kashiwagi, D. D. B. Zainudin, and M. Nakamura, "Performance evaluation of twin-SSB methods with detection using a electric butterfly operation," Optoelectronics and Communications Conference (OECC2018, Jeju, Korea), P1-22, Jul. 2018.
Y. Otsuka, Y. Fukumoto, S. Owaki, and M. Nakamura, "Computational-complexity
comparison of artificial neural network and Volterra series transfer function
for optical nonlinearity compensation," Optoelectronics and Communications
Conference (OECC2018, Jeju, Korea), P1-25, Jul. 2018.
T. Kyono, Y. Otsuka, Y. Fukumoto, S. Owaki, and M. Nakamura, "Computational-complexity comparison of artificial neural network and Volterra series transfer function for optical nonlinearity compensation with time- and frequency-domain dispersion equalization," 44th European Conference on Optical Communication (ECOC2018, Roma, Italy), Th2.28, Sep. 2018.
R. Nakagawa, Y. Takanashi, and M. Nakamura, "Phase-conjugated twin-SSB
for compensation of optical nonlinear waveform distortion," Optoelectronics
and Communications Conference (OECC2019, Fukuoka, Japan), TuP4-B9, Jul.
2019.
Y. Kurokawa, T. Kyono, Y. Fukumoto, N. Sumimoto, and M. Nakamura, "Polarization
demultiplexing and optical nonlinearity compensation based on artificial
neural networks and FIR filters," Optoelectronics and Communications
Conference (OECC2019, Fukuoka, Japan), WP4-B8, Jul. 2019.
Y. Otsuka, Y. Fukumoto, and M. Nakamura, "Reduction of computational-complexity
of Volterra series transfer function and artificial neural network for
compensation of optical nonlinear waveform distortion," Optoelectronics
and Communications Conference (OECC2019, Fukuoka, Japan), WP4-B11, Jul.
2019.
Y. Kurokawa, T. Kyono, and M. Nakamura, "Electronic polarization-division
demultiplexing based on artificial neural networks in optical communication
systems," SPIE Photonics WEST, OPTO2020, AI and Optical Data Sciences
(San Francisco, California), 11299-35, Feb. 2020.
T. Kyono and M. Nakamura, "Computational-complexity comparison of
time- and frequency-domain artificial neural networks for optical nonlinearity
compensation," SPIE Photonics WEST, OPTO2020, AI and Optical Data
Sciences (San Francisco, California), 11299-40, Feb. 2020.
K. Ikuta, Y. Otsuka, and M. Nakamura, "Overfitting of artificial-neural-network-based
nonlinear equalizer for multilevel signals in optical communication systems,"
SPIE Photonics WEST, OPTO2020, AI and Optical Data Sciences (San Francisco,
California), 11299-41, Feb. 2020.
M. Nakamura, "Optical nonlinearity compensation using artificial-neural-network-based digital signal processing," SPIE Photonics West, OPTO2020, Metro and Data Center Optical Networks and Short-Reach Links III (San Francisco, California), 11308-22, Feb. 2020. (invited paper)
R. Nakagawa, Y. Takanashi, and M. Nakamura, "Comparison of twin-SSB
modulation schemes," SPIE Photonics WEST, OPTO2020, Next-Generation
Optical Communication: Components, Sub-Systems, and Systems IX (San Francisco,
California), 11309-28, Feb. 2020.
Y. Kurokawa, T. Kyono, and M. Nakamura, "Polarization tracking and
optical nonlinearity compensation using artificial neural networks,"
Optoelectronics and Communications Conference (OECC2020, Taipei, Taiwan
(Online)), VP58, Oct. 2020. (Best Poster Paper Award)
K. Ikuta, Y. Otsuka, and M. Nakamura, "Overfitting of ANN-based nonlinear equalizer for multilevel signals in optical communication systems," Optoelectronics and Communications Conference (OECC2020, Taipei, Taiwan (Online)), VP65, Oct. 2020.
R. Nakagawa and M. Nakamura, "Performance evaluation of twin-SSB modulation
using digital-to-analogue converters," Optoelectronics and Communications
Conference (OECC2020, Taipei, Taiwan (Online)), VP89, Oct. 2020.
Y. Sato, T. Kyono, Y. Kurokawa, K. Ikuta, and M. Nakamura, "SVM-based
nonlinearity equalization for optical communication systems," 2020
International Conference on Emerging Technologies for Communications (ICETC2020,
Online), I1-1, Dec. 2020.
Y. Miyashita, T. Kyono, K. Ikuta, Y. Kurokawa, and M. Nakamura, "Activation
function of artificial neural networks for optical nonlinearity compensation,"
2020 International Conference on Emerging Technologies for Communications
(ICETC2020, Online), I1-4, Dec. 2020.
M. Nakamura, "Optical nonlinearity compensation based on machine learning
technology," SPIE Photonics West, OPTO2021, AI and Optical Data Sciences
II (San Francisco, California (Online)), 11703-42, Mar. 2021. (invited paper)
R. Nakagawa, Y. Kurokawa, K. Tsumura, and M. Nakamura, "Experimental
demonstration of optical twin-SSB detection scheme using an electric butterfly
operation," Optoelectronics and Communications Conference (OECC2021,
Hong Kong, China (Online)), JS2B.7, Jul. 2021.
J. Nakamura, K. Ikuta, and M. Nakamura, "Overfitting in four-layer-DNN-based
nonlinear equalizer for optical communication systems," Optoelectronics
and Communications Conference (OECC2021, Hong Kong, China (Online)), JS2B.10,
Jul. 2021.
Y. Miyashita and M. Nakamura, "Fiber-nonlinearity compensation using
artificial-neural-network-based nonlinear equalizer with fully complex
activation function," 2021 International Conference on Emerging Technologies
for Communications (ICETC2021, Online), P3-10, Dec. 2021.
J. Nakamura and M. Nakamura, "Overfitting in four-layer-DNN-based nonlinear equalizer for optical fiber transmission systems," 2021 International Conference on Emerging Technologies for Communications (ICETC2021, Online), P4-8, Dec. 2021.
J. Nakamura, K. Ikuta, and M. Nakamura, "Learning speed of four-layer-DNN-based
nonlinear equalizer for optical communication systems," Optoelectronics
and Communications Conference/International Conference on Photonics in
Switching and Computing (OECC/PSC2022, Toyama, Japan), TuP-F-6, Jul. 2022.
K. Ikuta, J. Nakamura, D. Motai, and M. Nakamura, "Comparison of overfitting
characteristics of ANN- and VSTF-based nonlinear equalizers for repeated
random bit patterns in optical communication systems," 2022 International
Conference on Emerging Technologies for Communications (ICETC2022, Tokyo,
Japan), S13-1, Nov. 2022. (Student Presentation Award)
J. Nakamura, K. Ikuta, and M. Nakamura, "Local-minimum-trapping problem
in training of DNN-based nonlinear equalizer for optical communication
systems," 2022 International Conference on Emerging Technologies for
Communications (ICETC2022, Tokyo, Japan), S13-5, Nov. 2022.
K. Ikuta, Y. Ito, and M. Nakamura, "Compensation of optical nonlinear
waveform distortion using DSP-based reservoir computing with tapped delay
lines," Optoelectronics and Communications Conference (OECC2023, Shanghai,
China), OECC2023-0318-13, Jul. 2023.
Y. Ito, K. Ikuta, and M. Nakamura, "Overfitting problem of reservoir-computing-based
nonlinear equalizer trained on PRBS signals in optical communication systems,"
22nd International Symposium on Communications and Information Technologies
(ISCIT2023, Sydney, Australia), R10.2, Oct. 2023.
K. Ikuta, Y. Ito, and M. Nakamura, "Polarization demultiplexing and fiber-nonlinearity compensation based on complex-valued reservoir computing," 2023 International Conference on Emerging Technologies for Communications (ICETC2023, Sapporo, Japan), P3-3, Nov. 2023. (Student Presentation Award)
T. Yamamoto, K. Ikuta, Y. Ito, T. Sakamoto, N. Yamamoto, and M. Nakamura,
"Complex-valued reservoir computing with enhanced sparsity for nonlinear
equalization in optical fiber transmission systems," Optoelectronics
and Communications Conference (OECC2024, Melbourne, Australia), Poster#130,
Jun. 2024. (Best Student Paper Award (Poster Presentation))
S. Kanaya, K. Ikuta, Y. Ito, and M. Nakamura, "Twin-SSB demultiplexing
and optical nonlinearity compensation using artificial neural network,"
Optoelectronics and Communications Conference (OECC2024, Melbourne, Australia),
Poster#321, Jun. 2024.
T. Yamada, K. Ikuta, Y. Ito, and M. Nakamura, "Delay characteristics
of reservoir-computing-based nonlinear equalizer for fiber-optic nonlinearity
mitigation," Optoelectronics and Communications Conference (OECC2024,
Melbourne, Australia), Poster#336, Jun. 2024.
Y. Ito, K. Ikuta, T. Yamada, T. Yamamoto, and M. Nakamura, "Overfitting
characteristics of reservoir-computing-based nonlinear equalizer trained
on PRBSs in optical communication systems," 2024 International Conference
on Emerging Technologies for Communications (ICETC2024, Kitakyushu, Japan),
P1-03, Nov. 2024.
J. Yokoyama, S. Kanaya, K. Ikuta, and M. Nakamura, "Optical twin-SSB
detection using single homodyne receiver and MIMO-based digital signal
processing," 2024 International Conference on Emerging Technologies
for Communications (ICETC2024, Kitakyushu, Japan), P1-17, Nov. 2024.
T. Yamada, K. Ikuta, Y. Ito, and M. Nakamura, "Impulse response characteristics
of reservoir computing with tapped delay line for optical nonlinear compensation,"
2024 International Conference on Emerging Technologies for Communications
(ICETC2024, Kitakyushu, Japan), P1-33, Nov. 2024.
T. Yamamoto, K. Ikuta, Y. Ito, and M. Nakamura, "Sparsified characteristics
of complex-valued reservoir-computingbased nonlinear equalizer for optical
fiber transmission," 2024 International Conference on Emerging Technologies
for Communications (ICETC2024, Kitakyushu, Japan), P2-27, Nov. 2024.
M. Nakamura, K. Ikuta, and A. Takai, "ChatGPT-assisted programming
of split-step Fourier method for research applications in optical fiber
communication education," to appear in 2025 IEEE Conference on Education
and Training in Optics and Photonics (ETOP2025, Glasgow, Scotland), May
2025.
研究会・大会・シンポジウム
中村守里也, 兵庫明, 関根慶太郎, “パルス型ニューロン素子の構成,” 電子情報通信学会春季全国大会, A-46, Mar. 1991.
G-W Lu, M. Nakamura, Y. Kamio, and T. Miyazaki, “40-Gb/s QPSK with inserted pilot symbols using self-homodyne detection,” 電子情報通信学会フォトニックネットワーク研究会, PN2008-12, Jun. 2008.
R. S. Luis, B. J. Puttnam, J. M. D. Mendinueta, J. Sakaguchi, S. Shinada,
M. Nakamura, Y. Kamio, and N. Wada, “Polarization diversity coherent receiver
for self-homodyne detection of polarization-multiplexed pilot tone signals,”
電子情報通信学会フォトニックネットワーク研究会, PN2013-18, Aug. 2013.
R. S. Luis, B. Puttnam, J.-M. Mendinueta, S. Shinada, M. Nakamura, Y. Kamio, and N. Wada, "Polarization and Modulation-Format Insensitive Self-Homodyne Detection,"電子情報通信学会フォトニックネットワーク研究会, PN2013-50, Jan. 2014.
K. Amino, K. Sekine, K. Wada, and M. Nakamura, "1.0V analog FIR filter
design using inverters and gilbert cells with 28-nm FDSOI process,"
2015 IEEE 13th International New Circuits and Systems Conference (NEWCAS2015,
Grenoble, France), Students' Workshop, Session 9B-2, Jun. 2015.
Y. Kitani, K. Sekine, K. Wada, and M. Nakamura, "Matching circuits of tapped delay line for the transversal filter," 2015 IEEE 13th International New Circuits and Systems Conference (NEWCAS2015, Grenoble, France), Students' Workshop, Session 9B-5, Jun. 2015.
R. Nakamura, T. Koike, M. Nakamura, W. Klaus, Y. Awaji, and N. Wada, "Pumping
method for 7-core erbium-doped double-clad fiber amplifier," The 7th
International Symposium on Ultrafast Photonic Technologies and International
Symposium on extremely advanced transmission technology (ISUPT/EXAT2015,
Kyoto, Japan), P-24, Jul. 2015.
中村守里也, "光変復調技術の基礎," 電子情報通信学会光通信システム研究会, OCS Summer School 2015, Jul. 2015. (招待講演)
木谷嘉孝, 和田和千, 中村遼一郎, 中村守里也, 関根かをり, "ベルヌーイ数の母関数の連分数展開に基づくFIRフィルタの設計," 電気学会電子回路研究会, ECT-016-028, Mar. 2016.
大脇翔太郎, 中村守里也, "ニューラルネットワークを用いた16QAM信号における自己位相変調の補償," 電子情報通信学会総合大会,
B-10-50, Mar. 2016.
大里和徳, 中村守里也, "DP-QPSK 変調器を用いた2トーン光の生成," 電子情報通信学会総合大会, C-3-31,
Mar. 2016.
小原朋貴, 柏木省吾, 中村守里也, "「歩きスマホ」におけるスマートフォンの傾きの測定," 電子情報通信学会総合大会,
H-4-24, Mar. 2016.
K. Osato and M. Nakamura, "Distortion suppression in two-tone signal
generation using a DP-QPSK modulator," IEEE International symposium
on circuits and systems (ISCAS2016, Montreal, Canada), ReSMiQ-Meiji-ISEP
Symposium 2016, no. 2, May 2016.
S. Kashiwagi and M. Nakamura, "Pre-equalization using a FIR filter for optical SSB modulation," IEEE International symposium on circuits and systems (ISCAS2016, Montreal, Canada), ReSMiQ-Meiji-ISEP Symposium 2016, no. 4, May 2016.
F. Murakami and M. Nakamura, "Mode coupling between multi-mode fibers with different radii," IEEE International symposium on circuits and systems (ISCAS2016, Montreal, Canada), ReSMiQ-Meiji-ISEP Symposium 2016, no. 8, May 2016.
S. Watanabe, K. Amino, R. Nakamura, K. Sekine, K. Wada, and M. Nakamura,
"1.8V analog FIR filter design using NMOS inverters and gilbert cells
with 0.18um CMOS process for the light transmission distortion compensation
of 10Gbps signal," IEEE International symposium on circuits and systems
(ISCAS2016, Montreal, Canada), ReSMiQ-Meiji-ISEP Symposium 2016, no. 10,
May 2016.
網野賢太,渡辺正之助,関根かをり,木谷嘉孝,中村遼一郎,和田和千,中村守里也, "28nm FDSOIプロセスでのアナログFIRフィルタを用いた20Gbps
4PAMマルチモードファイバ伝送における歪み補償の電源電圧ばらつきに対する考察," 電気学会C部門大会, PS3-9, Aug. 2016.
中村守里也, “空間CDMAとイメージファイバとを用いた二次元並列多重光インターコネクトの研究,” 理大 科学フォーラム, 第28巻第3号, pp. 8-9, Mar. 2011.
M. Nakamura, "IEICE Fellow Conferred on 9 IEICE-CS Members,"
IEICE Communications Society GLOBAL NEWSLETTER, vol. 39, no. 4, p. 21, Dec. 2015.
M. Nakamura, T. Dateki, N. Mimura, M. Ogawa, K. Take, and Y. Suzuki, "Report
on the 8th IEICE Communications Society (CS) Welcome Party," IEICE Communications Society GLOBAL NEWSLETTER, vol. 40, no. 2, pp. 7-8, Jun. 2016.
M. Kai, M. Nakamura, N. Mimura, K. Kamakura, A. Taira, and Y. Suzuki, "Report
on the 9th IEICE Communications Society (CS) Welcome Party," IEICE Communications Society GLOBAL NEWSLETTER, vol. 41, no. 2, pp. 12-13, Jun. 2017.