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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 41件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PRMU 2019-10-18
15:05
Tokyo   Study of Recognizing Road Surface Conditions using Deep Learning Applied for RGBD images Obtained from an Environmental Monitoring Robot -- Comparative Studies of SegNet-Basic and ENet as well as Height and Surface Curvature Features --
Takuya Hayashi, Takeo Kaneko, Junya Morimoto (Waseda Univ.), Junji Yamato (Kogakuin Univ.), Hiroyuki Ishii, Jun Ohya, Atsuo Takanishi (Waseda Univ.) PRMU2019-39
An environmental monitoring robot that moves safely and autonomously needs a function to recognize the state of the grou... [more] PRMU2019-39
pp.41-46
LQE, OPE, CPM, EMD, R 2019-08-22
13:45
Miyagi   [Invited Talk] Development of wavelength tunable laser for optical communications
Hiroyuki Ishii (Furukawa Electric Co.) R2019-21 EMD2019-19 CPM2019-20 OPE2019-48 LQE2019-26
As a digital coherent optical communications system was developing, the performances such as the spectral linewidth, and... [more] R2019-21 EMD2019-19 CPM2019-20 OPE2019-48 LQE2019-26
pp.11-14
LQE, OPE, SIPH 2018-12-06
15:50
Tokyo Keio University [Invited Talk] 2-um-band tunable laser for CO2 gas sensing
Yuta Ueda, Takahiko Shindo, Takuya Kanai, Makoto Shimokozono, Naoki Fujiwara (NTT), Hiroyuki Ishii (former NTT), Hideaki Matsuzaki (NTT) OPE2018-104 LQE2018-114 SIPH2018-20
 [more] OPE2018-104 LQE2018-114 SIPH2018-20
pp.35-38
LQE, LSJ 2018-05-25
13:00
Fukui   Chirp Characteristic of Hybrid Modulation Laser under High Speed Modulation
Mitsunari Kanno, Shigeru Mieda, Nobuhide Yokota (Tohoku Univ.), Hiroyuki Ishii (NTT), Hiroshi Yasaka (Tohoku Univ.) LQE2018-15
 [more] LQE2018-15
pp.21-24
LQE, LSJ 2017-05-26
14:10
Ishikawa   28-Gbit/s 80-km transmission with 1.3 μm wavelength SOA assisted extended reach EADFB laser (AXEL)
Takahiko Shindo, Wataru Kobayashi, Koichi Hasebe, Naoki Fujiwara, Toshihide Yoshimatsu, Shigeru Kanazawa, Tetsuichiro Ohno, Hiroaki Sanjoh, Yoshitaka Ohiso, Hiroyuki Ishii, Yoshiaki Sone, Hideaki Matsuzaki (NTT) LQE2017-17
 [more] LQE2017-17
pp.69-72
LQE 2016-12-16
10:30
Tokyo Kikai-Shinko-Kaikan Bldg. Extension of transmission distance and enhancement of modulated output power with L-band wavelength SOA assisted extended reach EADFB laser (AXEL)
Takahiko Shindo, Wataru Kobayashi, Naoki Fujiwara, Yoshitaka Ohiso, Koichi Hasebe, Hiroyuki Ishii, Mikitaka Itoh (NTT) LQE2016-97
 [more] LQE2016-97
pp.5-8
LQE, OPE, OCS 2016-10-28
11:05
Miyazaki Miyazaki Citizen's Plaza 100-Gbit/s operation of 4-channel directly modulated DFB laser monolithically integrated with MMI coupler
Wataru Kobayashi, Shigeru Kanazawa, Yuta Ueda (NTT), Takeshi Fujisawa (Hokkaido Univ), Hiroyuki Ishii, Mikitaka Itoh (NTT) OCS2016-49 OPE2016-90 LQE2016-65
We fabricate a 1.3 μm, 4-channel directly modulated laser (DML) array monolithically integrated multimode interference (... [more] OCS2016-49 OPE2016-90 LQE2016-65
pp.83-86
LQE, OPE, EMD, R, CPM 2016-08-26
14:35
Hokkaido   Equalizer-free 100-Gbit/s/λ signal transmission using flip-chip interconnection EADFB laser module
Shigeru Kanazawa, Satoshi Tsunashima, Yasuhiko Nakanishi, Yoshifumi Muramoto, Hiroshi Yamazaki, Yuta Ueda, Wataru Kobayashi, Hiroyuki Ishii, Hiromasa Tanobe, Hiroaki Sanjoh (NTT)
 [more]
OPE, OCS 2016-05-13
16:55
Tokyo Kikai-Shinko-Kaikan Bldg(Tokyo) [Special Invited Talk] 200-Gbit/s operation of high-speed lumped-electrode EADFB laser module using flip-chip interconnection technique
Shigeru Kanazawa, Hiroshi Yamazaki, Yasuhiko Nakanishi, Takeshi Fujisawa, Kiyoto Takahata, Yuta Ueda, Wataru Kobayashi, Yoshifumi Muamoto, Hiroyuki Ishii, Hiroaki Sanjoh (NTT) OCS2016-7 OPE2016-7
(Advance abstract in Japanese is available) [more] OCS2016-7 OPE2016-7
p.25
OPE 2015-12-11
10:45
Ishikawa Shiinoki Cultural Complex High-speed, High-Accuracy Wavelength Switching at Wavelength Tunable Laser using Feedforward Control
Yudai Tatsumoto, Ryoga Kimura (Kyushu Univ.), Makoto Shimokozono, Hiroyuki Ishii (NTT), Kazutoshi Kato (Kyushu Univ.) OPE2015-143
We present the method of the high-speed wavelength switching of the tunable distributed amplification (TDA-) DFB laser b... [more] OPE2015-143
pp.21-24
OPE, LQE, OCS 2015-10-30
10:50
Oita Beppu International Convention Center 100-Gbit/s/λ operation of flip-chip interconnection EADFB laser module
Shigeru Kanazawa, Takeshi Fujisawa, Kiyoto Takahata, Toshio Ito, Yuta Ueda, Wataru Kobayashi, Hiroyuki Ishii, Hiroaki Sanjoh (NTT) OCS2015-72 OPE2015-122 LQE2015-91
(Advance abstract in Japanese is available) [more] OCS2015-72 OPE2015-122 LQE2015-91
pp.155-158
CPM, OPE, LQE, R, EMD 2015-08-28
09:10
Aomori Aomori-Bussankan-Asupamu Empirical Approach for Multi-channel Switching with Frequency Drift Suppression by Thermal Compensation in TDA-DFB Laser Array
Makoto Shimokozono, Takuya Kanai, Hiroyuki Ishii (NTT) R2015-36 EMD2015-44 CPM2015-60 OPE2015-75 LQE2015-44
Tunable Distributed Amplification (TDA-) DFB Laser Array is a wide-band quasi-continuous tunable laser and suitable for ... [more] R2015-36 EMD2015-44 CPM2015-60 OPE2015-75 LQE2015-44
pp.69-72
CPM, OPE, LQE, R, EMD 2015-08-28
09:35
Aomori Aomori-Bussankan-Asupamu Analysis of heat dissipation and evaluation of current reduction of 1.3 μm wavelength InGaAlAs BH laser
Takahiko Shindo, Wataru Kobayashi, Yoshihiro Ogiso, Naoki Fujiwara, Ryuzo Iga, Yoshitaka Ohiso, Hiroyuki Ishii (NTT) R2015-37 EMD2015-45 CPM2015-61 OPE2015-76 LQE2015-45
The 1.3 μm wavelength InGaAlAs directly modulated semiconductor laser is a promising candidate as a high-speed semicondu... [more] R2015-37 EMD2015-45 CPM2015-61 OPE2015-76 LQE2015-45
pp.73-76
OCS, OPE, LQE 2014-10-30
13:40
Nagasaki Nagasaki Museum of History and Culture Introducing Feedforward Control into Tunable Distributed Amplification DFB Lasers for Fast Wavelength Switching
Hirokazu Onji, Yudai Tatsumoto, Shota Takeuchi (Kyushu Univ.), Nobuhiro Nunoya, Makoto Shimokozono, Hiroyuki Ishii (NTT), Kazutoshi Kato (Kyushu Univ.) OCS2014-48 OPE2014-92 LQE2014-66
Wavelength routing systems need tunable lasers with large tunable capability and fast wavelength switching. We propose t... [more] OCS2014-48 OPE2014-92 LQE2014-66
pp.33-36
OCS, OPE, LQE 2014-10-31
10:10
Nagasaki Nagasaki Museum of History and Culture Low-voltage Operation of Mach-Zehnder Interferometer-type Electroabsorption Modulator integrated with DFB laser diode
Yuta Ueda (NTT), Takeshi Fujisawa (Hokkaido Univ.), Shigeru Kanazawa, Wataru Kobayashi, Kiyoto Takahata, Hiroaki Sanjoh, Hiroyuki Ishii, Masaki Kohtoku (NTT) OCS2014-71 OPE2014-115 LQE2014-89
 [more] OCS2014-71 OPE2014-115 LQE2014-89
pp.153-157
OCS, OPE, LQE 2014-10-31
16:05
Nagasaki Nagasaki Museum of History and Culture [Invited Talk] 8 x 50-Gb/s EADFB laser array module using flip-chip interconnection technique
Shigeru Kanazawa, Takeshi Fujisawa, Kiyoto Takahata, Hiroaki Sanjoh, Ryuzo Iga, Hiroyuki Ishii (NTT) OCS2014-82 OPE2014-126 LQE2014-100
We developed the first flip-chip interconnection EADFB laser array module for 400G system. The flip-chip interconnection... [more] OCS2014-82 OPE2014-126 LQE2014-100
pp.211-214
MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] 2014-01-23
17:15
Kyoto Doshisha University An electroabsorption modulator integrated DFB laser array integrated with low-loss optical multiplexer for 100GbE
Takeshi Fujisawa, Shigeru Kanazawa, Yuta Ueda, Wataru Kobayashi, Kiyoto Takahata, Akira Ohki, Toshio Ito, Masaki Kohtoku, Hiroyuki Ishii (NTT) PN2013-59 OPE2013-173 LQE2013-159 EST2013-108 MWP2013-79
 [more] PN2013-59 OPE2013-173 LQE2013-159 EST2013-108 MWP2013-79
pp.135-140
RCS, NS
(Joint)
2013-12-18
15:45
Kagawa Sunport Hall Takamatsu A Study on Discovery Signal for Efficient Macro-assisted Small Cell Discovery Mechanism in LTE SCE
Hiroki Harada, Kazuaki Takeda, Satoshi Nagata (NTT DOCOMO), Hiroyuki Ishii (DOCOMO INNOVATIONS), Yoshihisa Kishiyama (NTT DOCOMO) RCS2013-215
In order to deal with an increasing mobile data traffic, a future radio access network may consist of macrocells with a ... [more] RCS2013-215
pp.53-58
RCS, NS
(Joint)
2013-12-18
16:10
Kagawa Sunport Hall Takamatsu Investigation on inter-cell interference suppression using small cell discovery signal in LTE-Advanced
Kazuaki Takeda (NTT DOCOMO), Yu Jiang (DOCOMO Beijing Lab.), Hiroki Harada (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Inovations) RCS2013-216
 [more] RCS2013-216
pp.59-64
OPE, LQE, CPM, EMD, R 2013-08-29
11:35
Hokkaido sun-refre Hakodate Low-crosstalk and high-modulation bandwidth operation of flip-chip interconnection EADFB laser array module
Shigeru Kanazawa, Takeshi Fujisawa, Kiyoto Takahata, Akira Ohki, Ryuzo Iga, Hiroyuki Ishii (NTT) R2013-34 EMD2013-40 CPM2013-59 OPE2013-63 LQE2013-33
We developed the first EADFB laser array module with new flip-chip interconnects which provide low crosstalk and high mo... [more] R2013-34 EMD2013-40 CPM2013-59 OPE2013-63 LQE2013-33
pp.31-34
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