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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 29  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN, NS, OCS
(Joint)
2020-06-18
12:00
Online Online Analytical Expressions for Bit Error Rate in Stokes-Vector Modulation-Demodulation Systems
Kazuro Kikuchi (NIAD-QE) OCS2020-3
The polarization-modulated signal can be demodulated by directly detecting the Stokes vector. In this study, we theoreti... [more] OCS2020-3
pp.11-16
OCS, PN, NS
(Joint)
2019-06-20
14:15
Iwate MALIOS(Morioka) Quantum theory of Stokes vector receivers
Kazuro Kikuchi (NIAD-QE) OCS2019-16
Polarization-modulated signals can be demodulated via direct detection of Stokes vectors. In this study, we develop a qu... [more] OCS2019-16
pp.31-36
OPE, LQE, OCS 2018-10-19
13:55
Saga   Channel Capacity in Quantum-Noise-Limited Optical Communication Systems
Kazuro Kikuchi (NIAD-QE) OCS2018-47 OPE2018-83 LQE2018-72
In this paper, we analyze the bit-error rate (BER) and mutual information characteristics of intensity modulation/direct... [more] OCS2018-47 OPE2018-83 LQE2018-72
pp.105-110
NS, OCS, PN
(Joint)
2018-06-15
10:25
Fukushima Koriyama-Shoko-Kaigisho Sensitivity Analyses of Stokes-Vector Receivers
Kazuro Kikuchi (NIAD-QE) OCS2018-16
Demodulation of multi-level polarization-modulation optical signals can be done via Stokes-vector direct detection fol... [more] OCS2018-16
pp.31-36
OCS, OPE, LQE 2017-10-27
09:55
Kumamoto Josaien, Sakuranobaba Analyses of Receiver Sensitivity and Spectral Efficiency of Three-dimensional Optical Polarization Modulation/demodulation Schemes using Direct-detection-based Stokes-vector Receivers
Kazuro Kikuchi (NIAD-QE) OCS2017-48 OPE2017-80 LQE2017-53
We can demodulate the multi-level polarization-modulation optical signal with Stokes-vector direct detection followed by... [more] OCS2017-48 OPE2017-80 LQE2017-53
pp.61-66
PN, NS, OCS
(Joint)
2017-06-16
15:00
Akita Akita Univ. Receiver-sensitivity Analyses of the Stokes Analyzer Demodulating Dual-polarization PAM Signals
Kazuro Kikuchi (NIAD-QE) OCS2017-19
We can demodulate the dual-polarization pulse-amplitude-modulation (DP-PAM) signal with direct detection, where the Stok... [more] OCS2017-19
pp.45-50
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2014-11-14
13:00
Hiroshima   Digital coherent optical receivers using analog-to-digital conversion at the symbol rate
Kazuro Kikuchi (Univ. of Tokyo) OCS2014-87
This paper discusses the principle of clock extraction and requirements for the sampling rate of AD converters in digita... [more] OCS2014-87
pp.65-70
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2014-11-14
13:25
Hiroshima   Experimental demonstration of 8-state Trellis-coded 4D-QPSK optical modulation scheme
Shota Ishimura, Kazuro Kikuchi (Univ. of Tokyo) OCS2014-88
Recently, in coherent optical communication systems, 4-dimesnional (4D) modulation formats designed by using two degrees... [more] OCS2014-88
pp.71-76
OPE, OCS 2014-05-16
10:45
Tokyo Kikai-Shinko-Kaikan Bldg. Proposal and Performance Analyses of Novel Direct-detection Optical Receivers Demodulating Dual-polarization Multi-level Intensity-modulated Signals
Kazuro Kikuchi (Univ. of Tokyo) OCS2014-4 OPE2014-4
(Advance abstract in Japanese is available) [more] OCS2014-4 OPE2014-4
pp.19-24
LQE, OCS, OPE 2013-10-25
17:35
Fukuoka   Multi-dimensional modulation and demodulation schemes in coherent optical communication systems
Shota Ishimura, Kazuro Kikuchi (Univ. of Tokyo) OCS2013-81 OPE2013-127 LQE2013-97
In newly-developed coherent optical communication systems, we can employ four-dimensional optical modulation including t... [more] OCS2013-81 OPE2013-127 LQE2013-97
pp.159-164
OFT, OCS
(Joint)
2013-08-23
15:15
Hokkaido   Pre-dispersed Mutual Phase-conjugation Scheme for Fiber-nonlinearity Mitigation in Coherent Optical Communication Systems -- Proposal and Analysis of Parallel Back-propagation Method --
Hongbo Lu, Kazuro Kikuchi (Univ. of Tokyo) OCS2013-46
We propose and analyze an effective and practical method for mitigating signal distortion caused by fiber nonlinearity. ... [more] OCS2013-46
pp.55-60
OCS 2013-07-25
17:45
Tokyo Sumida-Sangyo-Kaikan Multi-level signaling in the Stokes space and its application to large-capacity coherent optical transmission
Kazuro Kikuchi (Univ. of Tokyo), Shojiro Kawakami (Photonic Lattice) OCS2013-28
The Stokes vector of an optical signal does not depend on its absolute phase but is dependent on the relative phase and ... [more] OCS2013-28
pp.49-54
OCS 2013-07-26
09:00
Tokyo Sumida-Sangyo-Kaikan [Tutorial Invited Lecture] Fundamentals of Digital Coherent Optical Communication Systems
Kazuro Kikuchi (Univ. of Tokyo) OCS2013-29
The new technology called Digital Coherent Optical Communications has recently emerged, combining ultrafast digital sign... [more] OCS2013-29
pp.55-60
OCS, OFT
(Joint)
2012-08-31
15:25
Hokkaido   Influence of channel misalignment of time-interleaved DAC on sensitivity degradation in coherent optical receivers
Changyo Han, Koji Igarashi, Kazuro Kikuchi (Univ. of Tokyo) OCS2012-39
The demand for higher-speed digital-to-analog converters (DACs) in the optical transmitter is increasing as the data rat... [more] OCS2012-39
pp.59-64
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) OCS2012-22
(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) OCS2011-57 OPE2011-95 LQE2011-58
 [more] OCS2011-57 OPE2011-95 LQE2011-58
pp.17-22
OFT, OCS
(Joint)
2011-08-26
13:05
Hokkaido   Novel configuration of FIR filters adapted by the decision-directed LMS algorithm in digital coherent optical receivers
Yojiro Mori, Kazuro Kikuchi (Univ. of Tokyo) OCS2011-52
We propose a novel configuration of finite-impulse-response (FIR) filters adapted by the decision-directed least-mean-sq... [more] OCS2011-52
pp.39-44
OFT, OCS
(Joint)
2011-08-26
13:30
Hokkaido   Multi-Impairment Monitoring from Adaptive Frequency-Domain Equalizer in Digital Coherent Optical Receivers
Md. Saifuddin Faruk, Kazuro Kikuchi (Univ. of Tokyo) OCS2011-53
After introducing a novel adaptive frequency-domain equalizer (FDE) based on the constant-modulus algorithm (CMA) for di... [more] OCS2011-53
pp.45-50
OCS, CS
(Joint)
2011-01-28
09:00
Tokushima The University of Tokushima 1000-km WDM Transmission of 40G-symbol/s DPSK and DQPSK signals
Hiroki Okui, Koji Igarashi, Kazuro Kikuchi (Univ. of Tokyo) OCS2010-107
We perform experiments of 1000-km wavelength-division-multiplexed (WDM) transmission of 40G-symbol/s RZ-DPSK and RZ-DQPS... [more] OCS2010-107
pp.49-54
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) OCS2010-69 OPE2010-105 LQE2010-78
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
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