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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 21 - 34 of 34 [Previous]  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
CS 2010-07-08
13:55
Kagoshima Yoron Park Hotel, Kagoshima [Invited Talk] High-efficient and low-cost burst-mode transmission scheme using a redundant scrambler
Akio Tajima, Toshihiko Okamura, Seigo Takahashi (NEC Corp.) CS2010-14
To realize high-capacity access network, 10Gbps-class next generation PON (NG-PON) technologies have been developed. As ... [more] CS2010-14
pp.29-33
CS, OCS
(Joint)
2010-01-29
10:55
Yamaguchi Kaikyo Messe Shimonoseki Large Capacity Quantum Key Distribution Systems by use of Wavelength Division Multiplexing with a low-cost and easily-controlled configuration -- Colourless Interferometric Technique for sharing interferometers over multi-channels --
Akihiro Tanaka, Akihisa Tomita, Akio Tajima (NEC Corp.) OCS2009-110
(Advance abstract in Japanese is available) [more] OCS2009-110
pp.61-66
OPE, LQE, OCS 2009-10-22
13:10
Fukuoka   [Invited Talk] Report on ECOC2009 -- Access system --
Akio Tajima (NEC Corp.) OCS2009-49 OPE2009-115 LQE2009-74
ECOC 2009 was held during Sep. 20-24 in Vienna, Austria. This paper reports on the topics of optical access system categ... [more] OCS2009-49 OPE2009-115 LQE2009-74
pp.41-46
IT 2009-09-30
13:50
Tokyo Sophia Univ. [Invited Talk] Issues for the implementation of quantum key distribution
Akihiro Tanaka, Akio Tajima (NEC), Akihisa Tomita (NEC/JST) IT2009-42
Not only the improvement of single photon transmission performance, but also the improvement of the
subsequent signal p... [more]
IT2009-42
pp.53-60
CS 2009-07-03
10:45
Nagasaki Fukue Bunkakaikan 10G-EPON Burst Optical Transmitter and Receiver -- For Coexistence with G-EPON System --
Akio Tajima, Kazuhiro Shiba, Tatsuya Uchikata, Emiko Mizuki, Seigo Takahashi, Kikuo Makita (NEC) CS2009-30
To realize high-capacity access network, 10Gbps-class next generation PON (NG-PON) standardization has been discussed. T... [more] CS2009-30
pp.103-107
CS 2008-11-07
09:00
Hokkaido Hotel Tsturuga, Akan, Hokkaido A temperature compensated 10 Gbps burst-mode optical transmitter for 10G-EPON system
Seigo Takahashi, Tatsuya Uchikata, Tomohiro Myouraku, Akio Tajima (NEC Corp.) CS2008-33
 [more] CS2008-33
pp.47-51
PN, CS, OCS
(Joint)
2008-06-13
16:30
Hokkaido Chitose Institute of Science and Technology Fast Quantum Cryptography System using Single Photon Communication
Akio Tajima, Akihiro Tanaka, Yosihiro Nambu, Wakako Maeda, Ken-ichiro Yoshino, Seigo Takahashi, Akihisa Tomita (NEC) OCS2008-19
Quantum key distribution (QKD) systems based on single photon transmission can generate unconditionally secure common ke... [more] OCS2008-19
pp.51-56
OCS, PN, CS
(Joint)
2007-06-14
14:45
Hokkaido Chitose Inst. of Science and Technology A randomness test on a quantum crypto-key
Akihiro Tanaka, Wakako Maeda, Seigo Takahashi, Akio Tajima (NEC) OCS2007-13
We have established key techniques to ensure the randomness of crypto-key shared using Quantum Key Distribution. We have... [more] OCS2007-13
pp.19-24
NS, OCS
(Joint)
2007-01-25
13:25
Miyazaki   Optical-switched Quantum Key Distribution Network
Wakako Maeda, Akihiro Tanaka, Seigo Takahashi, Akio Tajima (NEC) OCS2006-75
 [more] OCS2006-75
pp.7-12
OCS 2006-04-21
16:10
Tokyo Kikai-Shinko-Kaikan Bldg. Automatic Installation in QKD System
Wakako Maeda, Akihiro Tanaka, Seigo Takahashi, Akio Tajima (NEC) OCS2006-8
(Advance abstract in Japanese is available) [more] OCS2006-8
pp.33-36
OFT, OCS
(Joint)
2005-08-26
11:45
Akita Akita Univ. Temperature and transmission line independent technologies of optical circuits in Quantum Key Distribution
Akihiro Tanaka, Akio Tajima, Wakako Maeda, Seigo Takahashi (NEC)
Many problems to be resolved are still remaining toward the commercial viability of the quantum cryptosystem, which attr... [more] OCS2005-41
pp.35-40
LQE, OPE 2005-06-24
16:40
Tokyo Kikai-Shinko-Kaikan Bldg. A minimized Photon Receiver for a high-speed quantum cryptosystem
Seigo Takahashi, Akihiro Tanaka, Wakako Maeda, Akio Tajima, Takeshi Takeuchi, Akihisa Tomita (NEC Corp.)
A practical quantum cryptosystem which security is guaranteed by quantum physics is strongly required. A high-speed and ... [more] OPE2005-26 LQE2005-25
pp.61-66
PN, CS, OCS
(Joint)
2005-05-23
09:30
Okinawa Hotel Moonbeach (Okinawa) A High-speed Quantum Cryptosystem
Akio Tajima, Akihiro Tanaka, Wakako Maeda, Seigo Takahashi, Takeshi Takeuchi, Akihisa Tomita, Yoshihiro Nambu (NEC)
Quantum cryptosystems, which security is guaranteed by quantum physics, are promising candidate for next generation impr... [more] OCS2005-13
pp.7-12
PN, CS, OCS
(Joint)
2005-05-23
09:55
Okinawa Hotel Moonbeach (Okinawa) Synchronization Technique of Quantum Key Distribution System
Wakako Maeda, Akio Tajima, Akihiro Tanaka, Seigo Takahashi (NEC Corp.)
 [more] OCS2005-14
pp.13-18
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