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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 19 of 19  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] 2019-01-18
12:05
Osaka Osaka University Nakanoshima Center An RF Parameter Measurement Scheme Utilizing Optical Phase Modulation via Electro-Optic Effect
Sunaga Yusuke, Akito Chiba, Kazumasa Takada (Gunma Univ.) PN2018-71 EMT2018-105 OPE2018-180 LQE2018-190 EST2018-118 MWP2018-89
Recently, RF signals are applied in communication and ranging, so that parameter measurement of RF signal also very sign... [more] PN2018-71 EMT2018-105 OPE2018-180 LQE2018-190 EST2018-118 MWP2018-89
pp.219-223
OFT 2017-10-12
15:20
Kochi Kochi Prefectural Culture Hall Self interleaving of optical comb spectra using parallel electro-optic modulator
Takahide Sakamoto (NICT), Akito Chiba (Gunnma Univ.) OFT2017-38
(Advance abstract in Japanese is available) [more] OFT2017-38
pp.1-5
LQE, EST, OPE, EMT, PN, MWP, IEE-EMT, PEM [detail] 2016-01-29
09:50
Hyogo   Evaluation of the higher-order optical sidebands extracted by means of projecting polarization of synthesized lightwaves with different modulation indices
Yosuke Akamatsu, Akito Chiba, Kazumasa Takada (Gunma Univ.) PN2015-98 EMT2015-149 OPE2015-211 LQE2015-198 EST2015-155 MWP2015-124
We propose generation of optical two-tone signal by polarization manipulation. Polarization of ± 1st-order optical sideb... [more] PN2015-98 EMT2015-149 OPE2015-211 LQE2015-198 EST2015-155 MWP2015-124
pp.389-392
MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] 2014-01-24
09:50
Kyoto Doshisha University Evaluation of high-frequency region crosstalk in interferometric-type optical switch and its suppression using optical-intensity trimmer structures
Akito Chiba (Gunma Univ.), Tetsuya Kawanishi, Takahide Sakamoto (NICT), Kaoru Higuma (Sumitoto Osaka Cement), Kazumasa Takada (Gunma Univ.), Masayuki Izutsu (Waseda Univ.) PN2013-86 OPE2013-200 LQE2013-186 EST2013-135 MWP2013-106
 [more] PN2013-86 OPE2013-200 LQE2013-186 EST2013-135 MWP2013-106
pp.321-324
OCS 2011-07-12
11:10
Osaka Osaka Univ. Nakanoshima Center 16 QAM Generation by Angular Superposition of Polarization Using Polarization-Multiplexing QPSK Modulator
Isao Morohashi, Takahide Sakamoto (NICT), Masaaki Sudo (SOC), Atsushi Kanno (NICT), Akito Chiba (Shizuoka Univ.), Junichiro Ichikawa (SOC), Iwao Hosako, Tetsuya Kawanishi (NICT) OCS2011-37
(Advance abstract in Japanese is available) [more] OCS2011-37
pp.63-66
EMT, OPE, MW, IEE-EMT [detail] 2010-07-29
13:55
Hokkaido Hokkaido Univ. 160 Gb/s full-ETDM NRZ-DQPSK modulation by a broadband optical IQ modulator
Atsushi Kanno, Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi (NICT), Masaaki Sudo, Kaoru Higuma, Junichiro Ichikawa (Sumitomo Osaka Cement Co., Ltd.) MW2010-44 OPE2010-29
160-Gb/s NRZ-DQPSK optical modulation with full-ETDM technique is successfully demonstrated. A development of an optical... [more] MW2010-44 OPE2010-29
pp.37-40
EMT, OPE, MW, IEE-EMT [detail] 2010-07-29
14:20
Hokkaido Hokkaido Univ. 75-km SMF transmission of optical 16 QAM signal generated by a monolithic quad-parallel Mach-Zehnder optical modulator
Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi (NICT), Kaoru Higuma, Masaaki Sudo, Junichiro Ichikawa (Sumitomo Osaka Cement Co., Ltd.) MW2010-45 OPE2010-30
We demonstrate 75-km single mode fiber transmission of 40-Gbit/s optical 16-level quadrature amplitude modulation (16QAM... [more] MW2010-45 OPE2010-30
pp.41-44
EMT, OPE, MW, IEE-EMT [detail] 2010-07-29
14:45
Hokkaido Hokkaido Univ. Electro-optic synthesis of high-speed optical multilevel signals
Takahide Sakamoto, Akito Chiba, Guo-Wei Lu, Isao Morohashi, Atsushi Kannno, Tetsuya Kawanishi (NICT), Masaaki Sudo, Kaoru Higuma, Junichiro Ichikawa (Sumitomo Osaka Cement Co. Ltd.) MW2010-46 OPE2010-31
 [more] MW2010-46 OPE2010-31
pp.45-50
CS, OCS
(Joint)
2010-01-29
14:05
Yamaguchi Kaikyo Messe Shimonoseki 100 Gbps NRZ-DPSK signal generation using high-speed and low-Vπ LN modulator
Atsushi Kanno, Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi (NICT), Kaoru Higuma, Masaaki Sudo, Junichiro Ichikawa (Sumitomo Osaka Cement Co. Ltd.) OCS2009-115
A broadband modulator with a low operation voltage has been developed for ultra-high-speed modulation. We fabricated the... [more] OCS2009-115
pp.89-92
OPE, EMD, CPM, LQE 2009-08-20
09:55
Miyagi   Development of high-speed LiNbO3 optical modulator for over 100 Gb/s transmission
Atsushi Kanno, Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi (NICT), Kaoru Higuma, Masaaki Sudo, Junichiro Ichikawa (Sumitomo Osaka Cement Co. Ltd.) EMD2009-28 CPM2009-52 OPE2009-76 LQE2009-35
We successfully fabricated a high-speed optical vector modulator for over 100 Gb/s signal generation. An electric-electr... [more] EMD2009-28 CPM2009-52 OPE2009-76 LQE2009-35
pp.13-16
OPE, EMT, MW 2009-07-31
10:15
Hokkaido Asahikawa Civic Culture Hall Optical signal wavelength swapping based on optical sideband generation in interferometric-type optical switch with intensity trimmers
Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi (NICT), Kaoru Higuma (Sumitomo Osaka Cement), Masayuki Izutsu (Tokyo Inst. of Tech.) MW2009-63 OPE2009-63
In this report we describe a method to avoid wavelength overlapping of two lightwave signals by use of an interferometri... [more] MW2009-63 OPE2009-63
pp.181-184
OCS, LQE, OPE 2008-10-23
14:15
Fukuoka Kyushu Univ. Precise performance measurement of Mach-Zehnder modulators using optical septrum analysis
Tetsuya Kawanishi, Takahide Sakamoto, Akito Chiba (NICT), Hiroyuki Toda (Doshisha), Akira Enokihara (Univ of Hyogo), Hiroshi Murata (Osaka Univ.) OCS2008-56 OPE2008-99 LQE2008-68
We investigated precise measurement methods for half-wavelength voltage, chirp paramter, extinction ratio of Mach-Zehnde... [more] OCS2008-56 OPE2008-99 LQE2008-68
pp.53-58
OCS, LQE, OPE 2008-10-24
16:45
Fukuoka Kyushu Univ. Investigation of high-speed optical QAM
Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi (NICT)
 [more]
OPE, EMT, MW 2008-07-24
15:40
Hokkaido   Highly Pure 160-GHz Two-Tone Lightwave Generation using High Extinction-Ratio Optical Intensity Modulator and Delay Interferometer
Hiroyuki Toda, Junichi Miyashita (Doshisha Univ.), Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi, Masahiro Tsuchiya (NICT), Masayuki Izutsu (Tokyo Inst. of Tech.) MW2008-58 OPE2008-41
 [more] MW2008-58 OPE2008-41
pp.65-67
OCS 2008-07-17
13:45
Yamanashi   Discrimination of Distorted Multilevel Optical Signal for Decoding of a High-Speed Optical QAM signal
Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi (NICT) OCS2008-25
Optical quadrature amplitude modulation (QAM) attracts much attention for enhancement of communication capacity, due to ... [more] OCS2008-25
pp.27-32
LQE, OPE, OCS 2007-11-02
12:40
Fukuoka   Complex digital-to-analog convertor for optical vector modulation
Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi, Masayuki Izutsu (NICT) OCS2007-63 OPE2007-118 LQE2007-104
 [more] OCS2007-63 OPE2007-118 LQE2007-104
pp.115-120
LQE, OPE, OCS 2007-11-02
13:30
Fukuoka   High-speed optical QAM signal generation and quality estimation method
Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi, Masayuki Izutsu (NICT) OCS2007-65 OPE2007-120 LQE2007-106
Optical quadrature amplitude modulation attracts much attention due to its spectral efficiency. In order to realize opt... [more] OCS2007-65 OPE2007-120 LQE2007-106
pp.127-130
EMT, OPE, MW 2007-08-03
09:00
Hokkaido Muroran Institute of Technology Performance Improvement of High-Extinction-Ratio LiNbO3 Optical Intensity Modulator by Means of Polarization Crosstalk Reduction
Hiroyuki Toda, Katsuya Fukuta, Daisuke Arai (Doshisha Univ.), Akito Chiba, Kiyotaka Sasagawa, Tetsuya Kawanishi, Masahiro Tsuchiya, Masayuki Izutsu (NICT) MW2007-73 OPE2007-60
We demonstrate that dc extinction ratio can be improved by reducing polarization crosstalk in high-extinction-ratio LiNb... [more] MW2007-73 OPE2007-60
pp.175-178
OPE 2007-05-25
13:40
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Reports on OFC/OFOEC 2007 -- Active module/device --
Tetsuya Kawanishi, Naokatsu Yamamoto, Akito Chiba, Redouane Katouf (NICT) OPE2007-9
This paper reports on OFC/NFOEC 2007 held at Anaheim Convention Center, CA, USA, from 25th to 29th March. We focus on te... [more] OPE2007-9
pp.5-7
 Results 1 - 19 of 19  /   
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