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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 21 - 40 of 45 [Previous]  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
LQE, OPE 2013-06-21
16:15
Tokyo   High-accuracy, high-speed wavelength switching with Tunable distributed amplification (TDA-) DFB laser array
Takuya Kanai, Nobuhiro Nunoya, Takayuki Yamanaka, Ryuzo Iga, Makoto Shimokozono, Hiroyuki Ishii (NTT) OPE2013-15 LQE2013-25
We have developed the tunable distributed amplification (TDA-) DFB laser array tuned by single tuning current without mo... [more] OPE2013-15 LQE2013-25
pp.43-48
OPE, LQE, OCS 2012-10-26
09:25
Miyazaki   An electroabsorption modulator integrated DFB laser for beyond 100G parallel LAN applications
Takeshi Fujisawa, Shigeru Kanazawa, Kiyoto Takahata, Akira Ohki, Yuta Ueda, Wataru Kobayashi, Ryuzo Iga, Hiroaki Sanjoh, Takayuki Yamanaka, Masaki Kohtoku, Hiroyuki Ishii (NTT) OCS2012-60 OPE2012-111 LQE2012-77
In 100GbE, a multi-lane LAN-WDM system, in which four 25-Gbit/s light sources with different waveglengths are used for t... [more] OCS2012-60 OPE2012-111 LQE2012-77
pp.97-101
SR, AN, USN, RCS
(Joint)
2012-10-17
11:15
Fukuoka Fukuoka univ. Cell identification performance based on hierarchical synchronization channels in dense small cell environment
Hiroki Harada, Akihito Morimoto, Yusuke Ohwatari, Satoshi Nagata (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Innovations), Yukihiko Okumura (NTT DOCOMO) RCS2012-130
 [more] RCS2012-130
pp.31-36
SAT, RCS
(Joint)
2012-08-30
11:05
Kochi Kochi City Cultura-Plaza CUL-PORT Conceptual Views and Radio Access Technologies for Future Evolution of LTE-A
Anass Benjebbour, Yoshihisa Kishiyama (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Innovations), Takehiro Nakamura (NTT DOCOMO) RCS2012-100
 [more] RCS2012-100
pp.25-30
IN, RCS
(Joint)
2012-05-17
09:25
Tokyo Kuramae-Kaikan, Tokyo Institute of Technology Investigation on Transmission Power Control Suitable for Heterogeneous Network Employing Cell Range Expansion in LTE-Advanced Uplink
Akihito Morimoto, Nobuhiko Miki (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Innovations, Inc), Daisuke Nishikawa, Yukihiko Okumura (NTT DOCOMO) RCS2012-22
In Long-Term Evolution (LTE)-Advanced, heterogeneous networks where femtocells and picocells are overlaid onto macrocell... [more] RCS2012-22
pp.1-6
EMT, PN, LQE, OPE, MWP, EST, IEE-EMT [detail] 2012-01-26
15:40
Osaka Osaka Univ. Convention Center Mode-hop-free tunable wavelength lasers and their applications
Nobuhiro Nunoya, Hiroyuki Ishii, Ryuzo Iga, Tomonari Sato, Hiromi Oohashi (NTT) PN2011-48 OPE2011-164 LQE2011-150 EST2011-98 MWP2011-66
Tunable wavelength lasers without mode hopping have been developed for both high-speed wavelength switching and stable o... [more] PN2011-48 OPE2011-164 LQE2011-150 EST2011-98 MWP2011-66
pp.99-102
OCS, LQE, OPE 2011-10-27
15:15
Kochi Kochi University of Technology A monolithically integrated light source for future-generation 100GbE transceiver
Takeshi Fujisawa, Shigeru Kanazawa, Hiroyuki Ishii, Yoshihiro Kawaguchi, Nobuhiro Nunoya, Akira Ohki, Kiyoto Takahata, Ryuzo Iga, Fumiyoshi Kano, Hiromi Oohashi (NTT) OCS2011-68 OPE2011-106 LQE2011-69
We have fabricated a small optical trasnmitter module based on monolithically integrated light source, in which four 25G... [more] OCS2011-68 OPE2011-106 LQE2011-69
pp.77-80
SCE 2011-07-13
11:10
Tokyo Kikai-Shinko-Kaikan Bldg. Development of a HTS UWB Bandpass Filter Using a Microstrip Stubs-Loaded Three-Mode Resonator
Hiroyuki Ishii (Yamagata Univ.), Toru Kimura (Saitama Univ.), Naotaka Kobayashi, Atsushi Saito (Yamagata Univ.), Zhewang Ma (Saitama Univ.), Shigetoshi Ohshima (Yamagata Univ.) SCE2011-1
In this paper, We developed a high-temperature superconducting (HTS) UWB bandpass filter using a microstrip three-mode r... [more] SCE2011-1
pp.1-6
OPE, OCS
(Joint)
2011-05-13
16:40
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Report of OFC/NFOEC 2011 -- Active Modules/Devices --
Hiroyuki Ishii (NTT) OCS2011-7 OPE2011-11
This paper reports topics of active modules and devices presented in OFC/NFOEC2011, held in 6-10 March, 2011, Los Angele... [more] OCS2011-7 OPE2011-11
pp.29-32(OCS), pp.15-18(OPE)
RCS, MoNA, SR
(Joint)
2011-03-03
11:30
Kanagawa YRP A Study on Management Technique of Carrier Aggregation in LTE-Advanced
Kengo Yagyu, Takeshi Nakamori, Hiroyuki Ishii, Mikio Iwamura, Nobuhiko Miki, Takahiro Asai, Junichiro Hagiwara (DOCOMO) RCS2010-272
The standardization of LTE-Advanced (LTE-A) as an enhanced form of LTE is now underway at the 3rd Generation Partnership... [more] RCS2010-272
pp.145-150
EMD, OPE, LQE, CPM 2010-08-27
18:10
Hokkaido Chitose Arcadia Plaza Directly modulated DFB lasers for flip chip mounting
Shigeru Kanazawa, Akira Ohki, Toshio Ito, Ryuzo Iga, Tomonari Sato, Hiroyuki Ishii, Hiromi Oohashi (NTT) EMD2010-62 CPM2010-78 OPE2010-87 LQE2010-60
 [more] EMD2010-62 CPM2010-78 OPE2010-87 LQE2010-60
pp.169-174
SDM 2010-06-22
14:10
Tokyo An401・402 Inst. Indus. Sci., The Univ. of Tokyo Relationships among Interface Composition, Bonding Structures and MIS Properties at High-k/III-V Interfaces
Tetsuji Yasuda, Noriyuki Miyata, Yuji Urabe, Hiroyuki Ishii, Taro Itatani, Tatsuro Maeda (AIST), Hisashi Yamada, Noboru Fukuhara, Masahiko Hata (Sumitomo Chemical), Akihiro Ohtake (NIMS), Takuya Hoshii, Masafumi Yokoyama, Mitsuru Takenaka, Shinichi Takagi (Univ. of Tokyo) SDM2010-42
There has been a significant interest in the III-V channel MISFET technology which expectedly enables performance improv... [more] SDM2010-42
pp.49-54
OPE, LQE, OCS 2009-10-23
16:05
Fukuoka   Full C-Band 40-Gbit/s DPSK modulation using InP n-p-i-n Mach-Zehnder Modulator Monolithically Integrated with SOA
Nobuhiro Kikuchi, Yasuo Shibata, Takako Yasui, Hiroyuki Ishii, Tomonari Sato, Yoshihiro Kawaguchi, Fumiyoshi Kano (NTT Corp.) OCS2009-78 OPE2009-144 LQE2009-103
 [more] OCS2009-78 OPE2009-144 LQE2009-103
pp.183-186
LQE 2008-12-12
14:10
Tokyo Kikai-Shinko-Kaikan Bldg. Spectral Linewidth Reduction in Tunable DFB Laser Array (TLA)
Hiroyuki Ishii, Kazuo Kasaya, Hiromi Oohashi (NTT) LQE2008-136
We have developed an L-band tunable distributed feedback laser array (TLA) with a new design to reduce the spectral line... [more] LQE2008-136
pp.43-46
OCS, LQE, OPE 2008-10-24
14:05
Fukuoka Kyushu Univ. Fast frequency sweep using SSG-DBR laser integrating thermal drift compensation mesa structure
Naoki Fujiwara, Hiroyuki Ishii, Yoshihiro Kawaguchi, Yasuhiro Kondo, Hiromi Oohashi, Fumiyoshi Kano (NTT Photonics Labs.) OCS2008-76 OPE2008-119 LQE2008-88
SSG-DBR-LD is attractive for various applications in, for example, WDM systems and medical OCT systems, because of its f... [more] OCS2008-76 OPE2008-119 LQE2008-88
pp.149-152
OPE, EMT, MW 2008-07-24
15:15
Hokkaido   Calcluation of Electromagnetic Radiation from PCB by Using Gaber Data and Netlist
Hiroyuki Ishii, Hideki Kawaguchi (Muroran IT) MW2008-67 OPE2008-50
According to appearance of useful design software of printed circuit board (PCB) and commercial service of the printed c... [more] MW2008-67 OPE2008-50
pp.113-116
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