Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
EMD, LQE, OPE, CPM, R |
2014-08-21 16:45 |
Hokkaido |
Otaru Economy Center |
Physical-random number generation using a semiconductor laser diode's frequency noise characteristics.
-- Influence of lights source characteristics -- Naohiro Mizutani, Masatoshi Hasegawa, Hideaki Arai, Shinya Maehara (Niigata univ.), Kohei Doi (Tohoku Gakuin Univ.), Takashi Sato, Yasuo Ohdaira, Masashi Ohkawa, Shuichi Sakamoto (Niigata univ.) R2014-34 EMD2014-39 CPM2014-54 OPE2014-64 LQE2014-38 |
[more] |
R2014-34 EMD2014-39 CPM2014-54 OPE2014-64 LQE2014-38 pp.59-62 |
EMD, LQE, OPE, CPM, R |
2014-08-21 17:05 |
Hokkaido |
Otaru Economy Center |
Examination of an Optical Range Finder Using Semiconductor Laser Frequency Noises Katsuki Kondou, Takahiro Saito, Yuuya Tokutake, Hideaki Arai, Shinya Maehara (Niigata Univ.), Kohei Doi (Tohoku Gakuin Univ.), Takashi Sato, Yasuo Ohdaira, Masashi Ohkawa, Shuichi Sakamoto (Niigata Univ.) R2014-35 EMD2014-40 CPM2014-55 OPE2014-65 LQE2014-39 |
[more] |
R2014-35 EMD2014-40 CPM2014-55 OPE2014-65 LQE2014-39 pp.63-66 |
EMD, LQE, OPE, CPM, R |
2014-08-21 17:25 |
Hokkaido |
Otaru Economy Center |
Oscillation Characteristic Changes of a Vertical Cavity Surface Emitting Laser in a Magnetic Field Otohiro Iijima (Niigata univ.), Kohei Doi (Tohoku Gakuin univ.), Takashi Sato, Masashi Ohkawa (Niigata univ.) R2014-36 EMD2014-41 CPM2014-56 OPE2014-66 LQE2014-40 |
Laser diodes’ oscillation characteristics vary according to types of materials used in their composition, injection curr... [more] |
R2014-36 EMD2014-41 CPM2014-56 OPE2014-66 LQE2014-40 pp.67-70 |
PN, NS, OCS (Joint) |
2014-06-26 14:55 |
Oita |
B-ConPlaza |
Quasi phase-matched fiber optical parametric amplifier using dispersion stable HNLF Shigehiro Takasaka, Yuki Taniguchi, Masanori Takahashi, Jiro Hiroishi, Masateru Tadakuma (Furukawa Electric), Hiroshi Matsuura, Kohei Doi (Tohoku Gakuin Univ.), Ryuichi Sugizaki (Furukawa Electric) OCS2014-16 |
We design and fabricate dispersion stable highly nonlinear fibers of which dispersion fluctuation along fiber length are... [more] |
OCS2014-16 pp.21-24 |
OCS, OPE, OFT (Joint) [detail] |
2014-02-27 15:15 |
Okinawa |
nest HOTEL Naha |
[Invited Talk]
Development of multicore EDFA for space division multiplexing Yukihiro Tsuchida, Shigehiro Takasaka, Koichi Maeda (Furukawa Electric), Hiroshi Matsuura, Kohei Doi (Tohoku Gakuin), Masateru Tadakuma, Ryuichi Sugizaki, Haruki Ogoshi (Furukawa Electric) OCS2013-102 OFT2013-59 OPE2013-209 |
(Advance abstract in Japanese is available) [more] |
OCS2013-102 OFT2013-59 OPE2013-209 pp.7-12(OCS), pp.25-30(OFT), pp.25-30(OPE) |
OPE, LQE, CPM, EMD, R |
2013-08-29 09:00 |
Hokkaido |
sun-refre Hakodate |
High-speed physical-random number generation using a laser diode's wide frequency noise characteristics Takanobu Kondo, Shinya Maehara (Niigata Uni), Kohei Doi (Gakuin Uni), Hideaki Arai, Naohiro Mizutani, Takashi Sato, Shuichi Sakamoto, Yasuo Ohdaira, Masashi Ohkawa (Niigata Uni) R2013-28 EMD2013-34 CPM2013-53 OPE2013-57 LQE2013-27 |
Recently, cryptographic is important to protect information. Now, the pseudo-random number is used for cryptographic. Bu... [more] |
R2013-28 EMD2013-34 CPM2013-53 OPE2013-57 LQE2013-27 pp.1-4 |
OPE, LQE, CPM, EMD, R |
2013-08-29 09:25 |
Hokkaido |
sun-refre Hakodate |
Physical random number generation using a frequency noise characteristic of a semiconductor laser
-- An influence of narrower oscillation width on physical random number generation -- Genichi Furukawa, Takahiro Saitou, Shota Sakai, Hideaki Arai, Shinya Maehara (Niigata Univ.), Kohei Doi (Touhoku gakuin Univ.), Takashi Sato, Masashi Ohkawa, Shuichi Sakamoto, Yasuo Ohdaira (Niigata Univ.) R2013-29 EMD2013-35 CPM2013-54 OPE2013-58 LQE2013-28 |
The light output from a semiconductor laser has high speed noise in both intensity and frequency region. We generate phy... [more] |
R2013-29 EMD2013-35 CPM2013-54 OPE2013-58 LQE2013-28 pp.5-10 |
OPE, LQE, CPM, EMD, R |
2013-08-29 09:50 |
Hokkaido |
sun-refre Hakodate |
Optical Distance Measurement Using Frequency Noises of a Semiconductor Laser Naoya Shimizu, Shinya Maehara (Niigata Univ.), Kohei Doi (Touhoku Gakuin Univ.), Hideaki Arai, Takashi Sato, Masashi Ohkawa, Yasuo Ohdaira, Shuichi Sakamoto (Niigata Univ.) R2013-30 EMD2013-36 CPM2013-55 OPE2013-59 LQE2013-29 |
A semiconductor laser’s frequency fluctuates owing to the refractive index fluctuations caused by the spontaneous emissi... [more] |
R2013-30 EMD2013-36 CPM2013-55 OPE2013-59 LQE2013-29 pp.11-14 |
LQE, LSJ |
2013-05-17 11:00 |
Ishikawa |
|
Shorter Wavelength Side Shift of a Vertical Cavity Surface Emitting Laser in a magnetic field Keiko Kono, Otohiro Iijima (Niigata Univ.), Kohei Doi (Tohoku gakuin Univ.), Shinichi Tabira, Takashi Sato, Masashi Ohkawa (Niigata Univ.) LQE2013-5 |
[more] |
LQE2013-5 pp.23-26 |
LQE, CPM, EMD, OPE, R |
2012-08-23 10:25 |
Miyagi |
Tohoku Univ. |
Random-Number-Generation Using a VCSEL's Frequency Noise Characteristic Kohei Kawakami, Shinya Maehara, Kohei Doi, Hideaki Arai, Takanobu Kondo, Naoya Shimizu, Takashi Sato, Shuichi Sakamoto, Yasuo Ohdaira, Masashi Ohkawa (Niigata Univ.) R2012-22 EMD2012-28 CPM2012-53 OPE2012-60 LQE2012-26 |
The pseudo-random number is normally used for large-scale simulation and encryption of communication. On the other hand,... [more] |
R2012-22 EMD2012-28 CPM2012-53 OPE2012-60 LQE2012-26 pp.9-12 |
LQE, CPM, EMD, OPE, R |
2012-08-23 11:00 |
Miyagi |
Tohoku Univ. |
Oscillation characteristic changes of a vertical cavity surface emitting laser in a magnetic field Shinichi Tabira, Keiko Kono, Kohei Doi, Takashi Sato, Masashi Ohkawa (Niigata Univ.) R2012-23 EMD2012-29 CPM2012-54 OPE2012-61 LQE2012-27 |
The Output characteristic of a diode laser is changed by the its conditions of injection current, temperature, and magne... [more] |
R2012-23 EMD2012-29 CPM2012-54 OPE2012-61 LQE2012-27 pp.13-16 |
LQE, LSJ |
2011-05-20 10:25 |
Ishikawa |
Kanazawa Univ. (Natural Sci. Tech. Main Bldg.) |
Physical Random Number Generation by Means of Diode Lasers' Frequency Noise Kohei Doi, Hideaki Arai, Shinya Maehara, Hiroki Takamori, Yoshihiko Matsumoto, Takashi Sato, Yasuo Ohdaira, Shuichi Sakamoto, Masashi Ohkawa (Niigata Univ.) LQE2011-3 |
Diode lasers are characterized by wideband frequency-noise output that is easily detected by frequency-selective element... [more] |
LQE2011-3 pp.9-12 |
LQE |
2010-05-28 11:35 |
Fukui |
Sougou Kenkyuu Tou I, Bunkyo Campus, Univ. of Fukui |
Fast Physical-Random Number Generation Using Frequency Noises of a Semiconductor Laser Shinya Maehara, Kohei Doi, Teturo Ushiki, Takashi Sato, Yasuo Ohdaira, Masashi Ohkawa (Niigata Univ.) LQE2010-6 |
Pseudo-random numbers’ periodicity renders them inappropriate for use in cryptographic applications, but, naturally-gene... [more] |
LQE2010-6 pp.23-26 |
LQE, CPM, EMD, OPE |
2008-08-29 11:20 |
Miyagi |
Touhoku Univ. |
Frequency stabilization of semiconductor lasers for onboard interferometers using both Rb-saturated absorption profiles and double-optical feedback systems Kenji Nakano, Shinya Maehara, Ayumi Sato, Kohei Doi, Takashi Sato, Masashi Ohkawa (Graduate School of Science and Technology Niigata Univ.), Seiji Kawamura (NAOJ) EMD2008-50 CPM2008-65 OPE2008-80 LQE2008-49 |
We expect that semiconductor lasers are useful for precise interferometric systems employed in artificial satellites, by... [more] |
EMD2008-50 CPM2008-65 OPE2008-80 LQE2008-49 pp.93-98 |
LQE |
2008-05-23 15:25 |
Fukui |
Bunkyo Campus, Univ. Of Fukui |
Consideration about characteristic improvements of a VCSEL using an external cavity system. Kohei Doi, Yuta Minabe, Jun Chiba, Tadashi Tamura, Takashi Sato, Masashi Ohkawa, Takeo Maruyama (Niigata Univ.) LQE2008-13 |
The recent development of FTTH (Fiber To The Home) can provide not only an Internet service but also IP phone and Cable ... [more] |
LQE2008-13 pp.59-62 |
CPM, LQE, OPE, EMD |
2007-08-24 14:25 |
Hokkaido |
Hokaido Univ. |
Frequency stabilization of an external cavity diode laser
-- Countermeasure against atmospheric temperature variations -- Yuta Minabe, Kohei Doi, Toshiya Kaizaka, Takashi Sato, Tadashi Tamura, Masashi Ohkawa, Takeo Maruyama (Niigata Univ.) EMD2007-52 CPM2007-73 OPE2007-90 LQE2007-53 |
External cavity diode lasers are presently experiencing a surge in popularity, as laser light-sources for advanced optic... [more] |
EMD2007-52 CPM2007-73 OPE2007-90 LQE2007-53 pp.123-126 |
LQE |
2007-05-25 14:15 |
Toyama |
Kanazawa Univ. |
Study of the natural random number generation using a noise characteristic of a semiconductor laser Jun Chiba, Kohei Doi, Takashi Sato, Yasuo Ohdaira, Masashi Ohkawa, Takeo Maruyama (Niigata Univ.) LQE2007-10 |
Random numbers can be classified as either pseudo-random or physical random in character. Pseudo-random numbers’ periodi... [more] |
LQE2007-10 pp.45-48 |
LQE |
2007-05-25 14:50 |
Toyama |
Kanazawa Univ. |
Investigation of characteristic improvements in an external cavity diode laser system using a double optical feedback method. Kohei Doi, Yuta Minabe, Toshiya Kaizaka, Takashi Sato, Takeo Maruyama, Masashi Ohkawa (Niigata Univ.) LQE2007-11 |
Wavelength stability and spectrum purity are crucial, when a semiconductor laser is used as a light source, in precision... [more] |
LQE2007-11 pp.49-52 |
LQE |
2006-06-02 15:20 |
Fukui |
University of Fukui |
Evaluation of frequency stability in compact double optical feedback ECDL systems Kohei Doi, Yuta Minabe, Takashi Sato, Takeo Maruyama, Masashi Ohkawa (Niigata Univ.), Tsuneya Tsubokawa (NAOJ) |
[more] |
LQE2006-12 pp.53-58 |
LQE |
2005-05-19 15:05 |
Ishikawa |
Kanazawa Univ. |
Evaluation of stability of oscillation frequency of a double optical feedback system Kohei Doi, Yumie Kobayashi, Shinya Maehara, Takashi Sato, Takeo Maruyama, Masashi Ohkawa (Niigata Univ.), Tsuneya Tsubokawa (NAO) |
[more] |
LQE2005-10 pp.37-40 |
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