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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 41 - 60 of 81 [Previous]  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT, OCS, LSJ
(Joint) [detail]		 2017-08-31
15:55		 Hokkaido Hokkaido Univ. 10-Mode-Multiplexed Transmission over 81km Weakly-coupled Few-mode Fiber with Partial MIMO Equalizers
Daiki Soma, Yuta Wakayama (KDDI Research), Koji Igarashi (Osaka Univ.), Takehiro Tsuritani (KDDI Research) OCS2017-25		 Mode-division multiplexing (MDM) transmission technique using a few-mode fiber (FMF) is attractive for increasing the tr... [more] OCS2017-25
pp.13-17
OFT, OCS, LSJ
(Joint) [detail]		 2017-09-01
09:00		 Hokkaido Hokkaido Univ. Generation of ultra-high order quadrature amplitude modulation optical signals based on single sideband modulation
Koji Igarashi (Osaka Univ.) OCS2017-27		 (Advance abstract in Japanese is available) [more] OCS2017-27
pp.25-28
PN, NS, OCS
(Joint)		 2017-06-15
11:20		 Akita Akita Univ. Iterative Decoding between Carrier Phase Estimator and FEC Decoder for Optical High-Order QAM Signals
Shuai Yuan, Koji Igarashi (Osaka Univ.) OCS2017-12		 Optical high-order QAM signals are more sensitive to phase noise in coherent detection. In order to compensate for the p... [more] OCS2017-12
pp.5-10
PN, NS, OCS
(Joint)		 2017-06-15
11:45		 Akita Akita Univ. FEC-directed adaptive equalization for Trellis coded modulation based on high-order quadrature modulation
Koji Igarashi (Osaka Univ.) OCS2017-13		 (Advance abstract in Japanese is available) [more] OCS2017-13
pp.11-15
PN, NS, OCS
(Joint)		 2017-06-16
15:25		 Akita Akita Univ. A Study on EXIT Analysis of Pilot Assisted Direct-Iterative Detection for Optical-OFDM with Soft Beat Interference Canceller
Noboru Osawa, Shinsuke Ibi, Koji Igarashi, Seiichi Sampei (Osaka Univ.) OCS2017-20		 This paper proposes a scheme of pilot assisted direct-iterative detection with soft beat interference canceller for opti... [more] OCS2017-20
pp.51-56
OCS, OFT, OPE
(Joint) [detail]		 2017-02-17
13:30		 Osaka Osaka Prefecture University(I-site Nanba) Numerical study on mode coupling in connection between few-mode fibers
Yuki Yamato, Koji Igarashi (Osaka Univ.) OCS2016-79 OPE2016-172		 The mode division multiplexing using few-mode fibers (FMFs) is one of techniques to increase the transmission capacity i... [more] OCS2016-79 OPE2016-172
pp.43-48(OCS), pp.65-70(OPE)
OFT, OCS, IEE-CMN, ITE-BCT [detail] 2016-11-11
09:55		 Nagasaki Nagasaki Shoko Kaigi Sho Effective Area Measurement of Few-Mode Fiber using Far Field Scan Technique with Hankel Transform for Circularly-Asymmetric Mode
Tetsuya Hayashi, Yoshiaki Tamura, Takuji Nagashima, Kazuhiro Yonezawa, Toshiki Taru (Sumitomo Electric), Koji Igarashi, Daiki Soma, Yuta Wakayama, Takehiro Tsuritani (KDDI Research) OCS2016-60		 We report on an Aeff measurement method for the few-mode fiber. We derived an NFP-FFP transform equation generalized for... [more] OCS2016-60
pp.31-36
OFT, OCS, IEE-CMN, ITE-BCT [detail] 2016-11-11
11:10		 Nagasaki Nagasaki Shoko Kaigi Sho Study on ultra-dense SDM Transmission over 9.8-km 6-mode 19-core Fiber using DP-16QAM/64QAM Signals
Daiki Soma, Yuta Wakayama, Shohei Beppu (KDDI Research), Koji Igarashi (Osaka Univ.), Takehiro Tsuritani (KDDI Research) OCS2016-63		 Space-division multiplexing (SDM) transmission technique using a multi-core fiber (MCF) and few-mode fiber (FMF) is attr... [more] OCS2016-63
pp.49-53
LQE, OPE, OCS 2016-10-27
14:10		 Miyazaki Miyazaki Citizen's Plaza [Invited Talk] Experimental Evaluation on Cladding-Pumped Six-Mode EDFA with Large Erbium-Doped Area Fiber
Yuta Wakayama (KDDI Research), Koji Igarashi (Osaka Univ.), Daiki Soma, Hidenori Taga, Takehiro Tsuritani (KDDI Research) OCS2016-39 OPE2016-80 LQE2016-55		 Few-mode erbium-doped fiber amplifiers (FM-EDFAs) have been addressed for efficient optical signal amplification in mode... [more] OCS2016-39 OPE2016-80 LQE2016-55
pp.25-29
LQE, OPE, OCS 2016-10-27
14:35		 Miyazaki Miyazaki Citizen's Plaza Six-mode multiplexer and demultiplexer using all-fiber-based couplers
Koji Igarashi (KDDI Reseach), Kyung Jun Park (KAIST), Daiki Soma, Yuta Wakayama, Takehiro Tsuritani (KDDI Reseach), Byoung Yoon Kim (KAIST) OCS2016-40 OPE2016-81 LQE2016-56		 (Advance abstract in Japanese is available) [more] OCS2016-40 OPE2016-81 LQE2016-56
pp.31-36
OCS, OFT, LSJ
(Joint) [detail]		 2016-08-26
10:20		 Hokkaido Chitose-alcadia plaza Evaluation for Wavelength Dependence of DMD in a 10-Mode Fiber with Low-Coherence Interferometry
Yuta Wakayama, Daiki Soma (KDDI R&D Labs.), Koji Igarashi (Osaka Univ.), Hidenori Taga, Takehiro Tsuritani (KDDI R&D Labs.) OCS2016-32		 In a mode-division multiplexing (MDM) transmission system, transmission performance considerably depends on differential... [more] OCS2016-32
pp.39-42
OCS, OFT, LSJ
(Joint) [detail]		 2016-08-26
10:45		 Hokkaido Chitose-alcadia plaza Seven-Mode Multiplexed Transmission using Weakly-coupled Few-mode Fiber for Reduction of MIMO Complexity
Daiki Soma, Yuta Wakayama (KDDI R&D Labs.), Koji Igarashi (Osaka Univ.), Takehiro Tsuritani (KDDI R&D Labs.) OCS2016-33		 Mode-division multiplexing (MDM) transmission technique using a few-mode fiber (FMF) is attractive for increasing the tr... [more] OCS2016-33
pp.43-46
OCS 2016-07-28
10:40		 Tokyo tokodai-kuramae-kaikan Experimental study on Polybinary shaping for Super-Nyquist WDM QAM signals
Koji Igarashi (Osaka Univ.), Takehiro Tsuritani, Itsuro Morita (KDDI Labs) OCS2016-22		 (Advance abstract in Japanese is available) [more] OCS2016-22
pp.11-16
OCS 2016-07-28
11:05		 Tokyo tokodai-kuramae-kaikan Turbo Equalization for Super-Nyquist WDM Systems Based on Duobinary Shaping
Shuai Yuan, Koji Igarashi (Osaka Univ.), Takehiro Tsuritani, Itsuro Morita (KDDI Lab.) OCS2016-23		 In Super-Nyquist wavelength division multiplexed (WDM) optical fiber transmission systems with channel spacing of smalle... [more] OCS2016-23
pp.17-22
OFT, OCS, OPE
(Joint) [detail]		 2016-02-18
14:20		 Okinawa Okinawa Univ. Cladding-pumped few-mode EDFA with wide Er+ doping distribution for equalization of mode-dependent gain
Koji Igarashi, Yoshitaka Tomiyama, Kyo Inoue (Osaka Univ.), Yuta Wakayama, Daiki Soma, Takehiro Tsuritani (KDDI labs) OCS2015-104 OPE2015-224		 (Advance abstract in Japanese is available) [more] OCS2015-104 OPE2015-224
pp.23-27(OCS), pp.49-53(OPE)
OFT, OCS, OPE
(Joint) [detail]		 2016-02-19
13:30		 Okinawa Okinawa Univ. 2.05-Pbit/s SDM Transmission over 9.8-km 6-mode 19-core Fiber
Daiki Soma (KDDI R&D Labs.), Koji Igarashi (Osaka Univ.), Yuta Wakayama, Koki Takeshima, Yu Kawaguchi, Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita, Masatoshi Suzuki (KDDI R&D Labs.) OCS2015-112 OPE2015-235		 Space-division multiplexing (SDM) transmission technique using a multi-core fiber (MCF) and few-mode fiber (FMF) is attr... [more] OCS2015-112 OPE2015-235
pp.67-70(OCS), pp.111-114(OPE)
LQE, EST, OPE, EMT, PN, MWP, IEE-EMT, PEM [detail] 2016-01-28
15:50		 Hyogo   [Invited Talk] Recent research and development of space-division multiplexed optical fiber transmission using multi-core fibers and/or few-mode fibers
Koji Igarashi (Osaka Univ.) PN2015-44 EMT2015-95 OPE2015-157 LQE2015-144 EST2015-101 MWP2015-70		  [more] PN2015-44 EMT2015-95 OPE2015-157 LQE2015-144 EST2015-101 MWP2015-70
pp.57-63
OCS, OFT, IEE-CMN, ITE-BCT
(Joint) [detail]		 2015-11-12
14:55		 Ehime Matsuyama Civic Center Investigation of Application of Turbo Code to Super-Nyquist Wavelength-Division-Multiplexed Systems
Shuai Yuan, Koji Igarashi (Osaka Univ.) OCS2015-83		 In this paper, we investigate the application of turbo code to Super-Nyquist Wavelength-Division-Multiplexed (WDM) signa... [more] OCS2015-83
pp.13-17
OCS, OFT, IEE-CMN, ITE-BCT
(Joint) [detail]		 2015-11-12
15:20		 Ehime Matsuyama Civic Center Viterbi Decoder Including Phase-locked Loop for High-QAM-based Trellis Code Modulation for Optical Fiber Communication
Koji Igarashi (Osaka Univ.) OCS2015-84		 (Advance abstract in Japanese is available) [more] OCS2015-84
pp.19-22
PN, NS, OCS
(Joint)		 2014-06-27
12:05		 Oita B-ConPlaza Poly-Binary Pulse Shaping for Super-Nyquist Wavelength-Division-Multiplexed Transmission Systems
Koji Igarashi (Osaka Univ.), Takehiro Tsuritani (KDDI Labs.) OCS2014-24		 (Advance abstract in Japanese is available) [more] OCS2014-24
pp.65-70
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