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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 11件中 1~11件目  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
OCS 2012-07-26
13:40
Shizuoka   Nyquist WDM Transmission of 10 Gsybmol/s Polarization-Division Multiplexed 64QAM Optical Signals
Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (Univ. Tokyo)
(Advance abstract in Japanese is available) [more] OCS2012-22
pp.7-11
OCS, LQE, OPE 2011-10-27
09:45
Kochi Kochi University of Technology Single-shot waveform measurement of ultrafast optical signals by streching the time axis
Koji Igarashi, Masatoshi Usui, Kazuhiro Katoh, Kazuro Kikuchi (Univ. Tokyo)
 [more] OCS2011-57 OPE2011-95 LQE2011-58
pp.17-22
LQE, OPE, OCS 2010-10-28
17:55
Fukuoka Mojiko Retro Town, Minato house Ultrafast digital coherent receiver based on subband technique
Chao Zhang, Yojiro Mori (The Univ. of Tokyo/Japan Society for the Promotion of Sci), Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo)
The maximum symbol rate at which a digital coherent receiver can process is strictly limited by the operation speed of a... [more] OCS2010-69 OPE2010-105 LQE2010-78
pp.85-90
LQE, OPE, OCS 2010-10-28
18:20
Fukuoka Mojiko Retro Town, Minato house Optical Equalization of Ultra-fast Optical Signals Based on Optical Finite Impulse Response Filters
Koji Igarashi, Hoang Manh Nguyen, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo.)
 [more] OCS2010-70 OPE2010-106 LQE2010-79
pp.91-96
CS, OCS
(Joint)
2010-01-29
13:40
Yamaguchi Kaikyo Messe Shimonoseki Optoelectronic 1:4 demultiplexing based on dual-port Mach-Zehnder modulators and its application to 160 Gsymbol/s systems
Koji Igarashi, Shinsuke Nabeya, Kazuhiro Katoh, Kazuro Kikuchi (Univ. of Tokyo.)
(Advance abstract in Japanese is available) [more] OCS2009-114
pp.83-87
OFT, OCS
(Joint)
2009-08-27
14:00
Hokkaido   Nonlinear tolerance of Quadrature-Amplitude-Modulated signals in Digital Coherent Detection
Yojiro Mori, Chao Zhang, Masatoshi Usui, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (Univ. of Tokyo)
The use of multi-level modulation formats is one of the most effective ways of enhancing the spectral efficiency in opti... [more] OCS2009-33
pp.23-28
OFT, OCS
(Joint)
2009-08-27
14:25
Hokkaido   Transmission of 160-Gbit/s QPSK signals on a single carrier over 1,000 km using digital coherent receivers
Chao Zhang, Yojiro Mori, Masatoshi Usui, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo)
The maximum symbol rate that a digital coherent receiver can process is strictly limited by the operation speed of analo... [more] OCS2009-34
pp.29-34
OCS, OFT
(Joint)
2008-08-28
15:45
Hokkaido   Transmission of 10-Gsymbol/s 16-QAM Signal using Digital Coherent Optical Receiver
Yojiro Mori, Chao Zhang, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo)
The use of multilevel modulation formats is one of the most effective ways of enhancing the spectral efficiency in optic... [more] OCS2008-39
pp.35-40
OCS, OFT
(Joint)
2008-08-28
16:10
Hokkaido   Ultrafast Operation of Digital Coherent Receivers Using Optical Time-Division Demultiplexing Function
Chao Zhang, Yojiro Mori, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo)
The digital coherent receiver realizes phase synchronization in the digital domain and can demodulate any multilevel cod... [more] OCS2008-40
pp.41-46
OCS, OFT
(Joint)
2006-08-24
16:15
Miyagi   Clock extraction and optical time-division demultiplexing functions based on signal processing in optical frequency domain and their application to 160-Gbit/s OTDM optical receivers
Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (Univ. Tokyo)
 [more] OCS2006-30
pp.1-6
OFT, OCS
(Joint)
2005-08-25
13:30
Akita Akita Univ. Highly-stable generation of 10-GHz picosecond pulse train woth entire-C-band wunability based on phase modulation in conjunction with nonlinear filtering
Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (Univ. of Tokyo)
We propose a generation technique of high stable and high quality10-GHz optical pulse train based on phase modulation, c... [more] OFT2005-17
pp.7-12
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