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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 15件中 1~15件目  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
QIT
(2nd)
2019-11-19
12:10
Tokyo Gakushuin University Conditions for equivalence of magic state distillation protocols in prime dimension at least 5
Yasuhiro Kondo, Ryuhei Mori (Tokyo Tech)
Magic state distillation protocol is necessary for quantum fault-tolerant computation.
There are two well-known methods... [more]

LQE 2010-12-17
15:00
Tokyo Kikai-Shinko-Kaikan Bldg. Growth of large InGaAs single crystals as substrates of 1.3 micron wavelength laser diodes
Kyoichi Kinoshita, Shinichi Yoda (JAXA), Hirokatsu Aoki (Furuuchi Chem.), Satoshi Yamamoto (Furuuchi Cem.), Tadatoshi Hosokawa (Furuuchi Che.), Masaaki Matsushima (Furuuchi Chem.), Masakazu Arai (NTT East), Yoshihiro Kawaguchi (NEL), Fumiyoshi Kano (NTT), Yasuhiro Kondo (NEL) LQE2010-123
We have succeeded in growing homogeneous InxGa1-xAs (x: 0.10 – 0.13) platy single crystals by the traveling liquid... [more] LQE2010-123
pp.43-46
EMD, OPE, LQE, CPM 2010-08-27
09:50
Hokkaido Chitose Arcadia Plaza Monolithically Integrated Wavelength-Routing Switch with Double-Ring-Resonator-Coupled Tunable Lasers
Toru Segawa, Shinji Matsuo, Takaaki Kakitsuka, Yasuo Shibata, Tomonari Sato, Yoshihiro Kawaguchi, Yasuhiro Kondo, Ryo Takahashi (NTT Corp.) EMD2010-45 CPM2010-61 OPE2010-70 LQE2010-43
Future photonic networks will require high-speed optical packet switches, which operate on a packet-by-packet basis whil... [more] EMD2010-45 CPM2010-61 OPE2010-70 LQE2010-43
pp.89-92
LQE 2009-12-11
11:25
Tokyo Kikai-Shinko-Kaikan Bldg. Analysis of Stable Behavior in InAs/InP MQW DFB laser Using an OBIC Monitor
Tatsuya Takeshita, Tomonari Sato, Manabu Mitsuhara, Yasuhiro Kondo, Hiromi Oohashi (NTT Corp.) LQE2009-143
We have realized reliable 2.3 $\micron$m wavelength InAs/InP MQW DFB lasers for trace gas monitoring applications. The e... [more] LQE2009-143
pp.25-30
OPE, EMD, CPM, LQE 2009-08-21
10:40
Miyagi   Direct modulation ridge waveguide MQW-DFB laser for 40/100GbE
Takashi Tadokoro, Takayuki Yamanaka, Fumiyoshi Kano, Hiromi Oohashi (NTT), Yasuhiro Kondo (NEL), Kenji Kishi (NTT) EMD2009-48 CPM2009-72 OPE2009-96 LQE2009-55
We demonstrated 25-Gbps direct modulation with a 1.3-m InGaAlAs RWG-MQW-DFB laser that is suitable for use as a ... [more] EMD2009-48 CPM2009-72 OPE2009-96 LQE2009-55
pp.113-116
LQE 2008-12-12
13:20
Tokyo Kikai-Shinko-Kaikan Bldg. [Encouragement Talk] Recent Advancements for the Semiconductor Double-ring-resonator-coupled Laser
Toru Segawa, Shinji Matsuo, Takaaki Kakitsuka, Tomonari Sato, Yasuhiro Kondo, Hiroyuki Suzuki, Ryo Takahashi (NTT Co.) LQE2008-134
Future photonic networks will require high-speed optical packet switches, which operate on a packet-by-packet basis whil... [more] LQE2008-134
pp.31-36
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
LQE, CPM, EMD, OPE 2008-08-29
10:15
Miyagi Touhoku Univ. 10 Gbps direct modulation experiment using a 1.3 micron-range ridge waveguide laser on an InGaAs substrate
Masakazu Arai, Takashi Tadokoro, Takeshi Fujisawa, Wataru Kobayashi, Yoshihiro Kawaguchi, Masahiro Yuda (NTT), Kyoichi Kinoshita, Shinichi Yoda (JAXA), Yasuhiro Kondo (NTT) EMD2008-48 CPM2008-63 OPE2008-78 LQE2008-47
 [more] EMD2008-48 CPM2008-63 OPE2008-78 LQE2008-47
pp.83-88
OPE, LQE 2008-06-27
11:25
Tokyo Kikai-Shinko-Kaikan Bldg Heterojunction Phototransistor with High Responsivity at 2.3 μm wavelength
Hideki Fukano, Tomonari Sato, Manabu Mitsuhara, Yasuhiro Kondo (NTT) OPE2008-22 LQE2008-23
We have developed a novel mid-infrared photodetector that provides high responsivity and a low dark current. The device ... [more] OPE2008-22 LQE2008-23
pp.21-24
OPE, CPM, R 2008-04-18
14:05
Tokyo Kikai-Shinko-Kaikan Bldg. Analysis of Wear-Out Degradation of a Ru-doped SIBH InGaAsP DFB laser Using an Optical-Beam-Induced Current Monitor
Tatsuya Takeshita, Ryuzo Iga, Mitsuru Sugo, Yasuhiro Kondo (NTT) R2008-3 CPM2008-3 OPE2008-3
We investigated the degradation behavior of InGaAsP distributed feedback lasers (DFBs) at high temperature by employing ... [more] R2008-3 CPM2008-3 OPE2008-3
pp.11-16
CPM, LQE, OPE, EMD 2007-08-24
13:35
Hokkaido Hokaido Univ. Semiconductor Double-ring-resonator-coupled Laser for Photonic Packet Switches
Toru Segawa, Shinji Matsuo, Takaaki Kakitsuka, Tomonari Sato, Yasuhiro Kondo, Hiroyuki Suzuki (NTT) EMD2007-50 CPM2007-71 OPE2007-88 LQE2007-51
A widely tunable double ring resonator coupled laser is developed for use in a photonic packet switching system. By usin... [more] EMD2007-50 CPM2007-71 OPE2007-88 LQE2007-51
pp.113-118
LQE, OPE 2007-06-29
10:20
Tokyo Kikai-Shinko-Kaikan Bldg. Expansion of tuning range in phase controlled tunable wavelength DFB laser
Nobuhiro Nunoya, Yasuo Shibata, Hiroyuki Ishii, Hiroshi Okamoto, Yoshihiro Kawaguchi, Yasuhiro Kondo, Hiromi Oohashi (NTT) OPE2007-18 LQE2007-19
We have studied how to expand the tuning range in phase controlled tunable wavelength DFB laser. In order to expand a st... [more] OPE2007-18 LQE2007-19
pp.11-14
OPE, LQE 2006-06-30
10:10
Tokyo Kikai-Shinko-Kaikan Bldg. 100℃ 10-Gb/s operation of 1.3-μm InGaAsP DFB lasers with Ru-doped semi-insulating buried heterostructure
Ryuzo Iga, Yasuhiro Kondo, Tatsuya Takeshita, Kenji Kishi, Masahiro Yuda (NTT)
We fabricated 1.3-um InGaAsP DFB lasers buried with a high-resistive ruthenium (Ru)-doped InP and evaluated 10Gb/s opera... [more] OPE2006-16 LQE2006-20
pp.7-10
LQE 2005-12-09
11:15
Tokyo Kikai-Shinko-Kaikan Bldg. A Digitally Tunable Laser Using Ladder Filter And Ring Resonator
Shinji Matsuo, Seok-Hwan Jeong, Toru Segawa, Hiroshi Okamoto, Yoshihiro Kawaguchi, Yasuhiro Kondo, Hiroyuki Suzuki, Yuzo Yoshikuni (NTT Photonics Labs.)
We have proposed and demonstrated the digitally tunable laser consisiting of the ladder filter and the ring resonator. T... [more] LQE2005-115
pp.13-16
LQE, OCS, OPE 2004-11-04
17:05
Fukuoka Kyushu Institute of Technology Low Driving-Voltage Operation of 40 Gbit/s Electroabsorption Modulators
Hideki Fukano, Munehisa Tamura, Takayuki Yamanaka, Yasuhiro Kondo (NTT)
 [more] OCS2004-91 OPE2004-156 LQE2004-100
pp.47-50
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