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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT, OCS, IEE-CMN, ITE-BCT [detail] | 2016-11-10 16:25 |
Nagasaki | Nagasaki Shoko Kaigi Sho | Automatic pull-in operation in heterodyne phase-lock and homodyne detection of QPSK signals by microcomputer-assisted loop filter Yudai Hisata, Akira Mizutori, Masafumi Koga (Oita Univ.)  OCS2016-58 |
This paper demonstrates signal light carrier automatic pull-in and phase-lock operation to optical frequency comb refere... [more] | OCS2016-58 pp.9-12 |
| OPE, LQE, OCS | 2015-10-29 16:55 |
Oita | Beppu International Convention Center | Optical Diversity Transmission with WDM Signal and its Phase-conjugate Lights through Multi-core Fiber Mitsuki Moroi (Oita Univ.), Hidehiko Takara (NTT), Masafumi Koga (Oita Univ.) OCS2015-54 OPE2015-104 LQE2015-73 |
We demonstrate nonlinear phase-shift cancellation by maximum-ratio combining WDM signal and its phase-conjugate lights p... [more] | OCS2015-54 OPE2015-104 LQE2015-73 pp.65-68 |
| PN, NS, OCS (Joint) |
2014-06-26 10:50 |
Oita | B-ConPlaza | Costas Loop Homodyne detection for 20Gbit/s QPSK signal transmission Yusuke Shigeta, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2014-12 |
The optical fiber transmission experiment confirmed a stable Costas-Loop homodyne detection for 20Gbit/s QPSK signal. Su... [more] | OCS2014-12 pp.1-4 |
| PN, NS, OCS (Joint) |
2014-06-26 11:15 |
Oita | B-ConPlaza | Crosstalk Yielded by Four-wave Mixing Process on Phase-Locked WDM Carrier Signal Transmission Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2014-13 |
On a phase unlocked WDM carrier signal transmission, the generated Four-wave mixing (FWM) lights behave stochastically, ... [more] | OCS2014-13 pp.5-8 |
| MWP | 2014-04-17 13:50 |
Hokkaido | Sapporo Convention Center | [Invited Talk]
Techniques on Phase Sensitive Optical Amplification Atsushi Takada, Yasuhiro Okamura (Univ. of Tokushima), Masafumi Koga (Ohita Univ.) MWP2014-7 |
Phase sensitive amplifiers (PSA) have signal gain which depends on the optical phase of input signal light and waveform ... [more] | MWP2014-7 pp.33-38 |
| OCS, CS (Joint) |
2013-01-25 09:25 |
Ehime | Ehime Univ. | Optical diversity transmission and maximum ratio combining in multi-core fiber to mitigate fiber non-linear phenomenon Tadashi Iida, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2012-92 |
[more] | OCS2012-92 pp.43-46 |
| OFT, OCS, ITE-BCT, IEE-CMN (Joint) [detail] |
2012-11-21 13:25 |
Kumamoto | Costas loop base homodyne detection for 12.5-Gbit/s BPSK signal and its evolution to optical frequency synchronous photonic network Akira Mizutori, Masamichi Sugamoto (Oita Univ.), Atsushi Takada (TokushimaUniv.), Masafumi Koga (Oita Univ.) OCS2012-77 |
This paper demonstrates 12.5-Gbit/s BPSK decision-directed homodyne detection. The lag-lead loop filter with integrator ... [more] | OCS2012-77 pp.7-10 |
|
| OFT, OCS, ITE-BCT, IEE-CMN (Joint) [detail] |
2012-11-21 13:50 |
Kumamoto | Injection-current Control Optical PLL with Compensation of FM Response for 3kHz Spectral Line-width External-Cavity Laser Diode Masamichi Sugamoto, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2012-78 |
(Advance abstract in Japanese is available) [more] | OCS2012-78 pp.11-14 |
|
| OPE, MW, MWP, EMT, EST, IEE-EMT [detail] | 2011-07-22 14:50 |
Hokkaido | Phase-synchronous Chain of Two Multi-Carrier Lights Spaced at 25GHz by Cancelling Micro-wave Phase Noise Akira Mizutori, Atsushi Kodama, Masafumi Koga (Oita Univ.) MW2011-64 OPE2011-51 EST2011-50 MWP2011-32 |
This paper proposes and demonstrates a phase-synchronous chain technique for two phase-locked multi-carrier lights space... [more] | MW2011-64 OPE2011-51 EST2011-50 MWP2011-32 pp.145-149 |
|
| OCS | 2011-07-11 13:00 |
Osaka | Osaka Univ. Nakanoshima Center | [Invited Talk]
WDM transmission system performance investigation using Digital Coherent Optical Transponder Platform with FPGA Based Real-Time Digital Signal Processing System Kiyoshi Fukuchi, Daisaku Ogasahara, Manabu Arikawa, Emmanuel Le Taillandier de Gabory, Toru Takamichi, Tadashi Koga (NEC) OCS2011-26 |
(Advance abstract in Japanese is available) [more] | OCS2011-26 pp.1-6 |
| LQE, OPE, OCS | 2010-10-28 10:20 |
Fukuoka | Mojiko Retro Town, Minato house | Transmission Performance of Phase-Locked Optical Multi-carrier in π-Phase Shift Technique to Suppress Four-wave Mixing-induced Crosstalk Atsushi Kodama, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2010-54 OPE2010-90 LQE2010-63 |
In DWDM transmission systems, Four-wave mixing (FWM) is one of the serious factor limiting fiber-launched power. This pa... [more] | OCS2010-54 OPE2010-90 LQE2010-63 pp.13-16 |
| RECONF | 2010-05-13 15:20 |
Nagasaki | First Prototype Chip of a Non-Volatile Reconfigurable Logic using FeRAM Cells Masahiro Koga, Masahiro Iida, Motoki Amagasaki (Kumamoto Univ.), Yoshinobu Ichida, Mitsuro Saji, Jun Iida (ROHM), Toshinori Sueyoshi (Kumamoto Univ.) RECONF2010-5 |
An advantage of a RLD such as an FPGA is that it can be customized after being manufactured. However, there is a problem... [more] | RECONF2010-5 pp.25-30 |
|
| CS, OCS (Joint) |
2010-01-28 10:30 |
Yamaguchi | Kaikyo Messe Shimonoseki | Optical Frequency Stabilization for 5kHz-linewidth Laser Diode utilizing Modulated Side-band Light Seeded to Optical Frequency Comb Reference Youichi Nishizato, Akira Mizutori (Oita Univ), Kunihiko Mori (NTT), Masafumi Koga (Oita Univ) OCS2009-99 |
This paper reports an optical frequency stabilization characteristics for 5kHz-linewidth laser diode using modulated sid... [more] | OCS2009-99 pp.1-4 |
| CS, OCS (Joint) |
2010-01-28 10:55 |
Yamaguchi | Kaikyo Messe Shimonoseki | Cancellation of Four-wave Mixing Light and its Effectiveness in Phase-locked Optical Multi-carrier Transmission Takahiro Koga, Atsushi Kodama, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2009-100 |
This paper proposes and experimentally confirms a simple but effective technique to cancel the waves generated by four-w... [more] | OCS2009-100 pp.5-8 |
| IPSJ-SLDM, VLD, CPSY, RECONF [detail] | 2010-01-26 14:55 |
Kanagawa | Keio Univ (Hiyoshi Campus) | Design of Reconfigurable Logic Device based on Variable Grain Logic Cell Kazuki Inoue, Yasuhiro Okamoto, Qian Zhao, Komei Yoshizawa, Hiroki Yosho, Masahiro Koga, Motoki Amagasaki, Masahiro Iida, Morihiro Kuga, Toshinori Sueyoshi (Kumamoto Univ.) VLD2009-79 CPSY2009-61 RECONF2009-64 |
We propose a variable grain logic cell（VGLC）architecture. Its key feature is variable granularity which helps to create ... [more] | VLD2009-79 CPSY2009-61 RECONF2009-64 pp.59-64 |
| OPE, LQE, OCS | 2009-10-23 14:20 |
Fukuoka | Phase Chain of Phase-Locked Multi-carriers Synchronizing to Optical Frequency Comb Reference spaced at 25GHz Takuzi Sudaki, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2009-74 OPE2009-140 LQE2009-99 |
This paper proposed an optical phase chain technique for multiple phase-locked multi-carriers that synchronized to optic... [more] | OCS2009-74 OPE2009-140 LQE2009-99 pp.167-170 |
|
| OFT, OCS, ITE-BCT, IEE-CMN (Joint) [detail] |
2008-11-21 13:35 |
Oita | L-band Laser Diode Stabilization Technique employing Modulated Side-band and its Application to Phase Locked Multi-Carrier Light Sources Akira Mizutori, Takahiro Koga, Youichi Nishizato, Masafumi Koga (Oita U), Kunihiko Mori, Kazunori Suzuki, Takashi Yamamoto, Atsushi Takada (NTT) OCS2008-103 |
This paper proposes a new optical frequency stabilization technique for L-band laser diodes with modulated side-band lig... [more] | OCS2008-103 pp.97-100 |
|
| RECONF | 2008-09-26 10:30 |
Okayama | Okayama Univ. | Exploration of Input Granularity Optimization for Variable Grain Logic Cell Masahiro Koga, Hiroshi Miura, Motoki Amagasaki, Masahiro Iida, Toshinori Sueyoshi (Kumamoto Univ.) RECONF2008-33 |
A Reconfigurable Logic Device (RLD), which has circuit programmability, is applied to embedded systems as a hardware Int... [more] | RECONF2008-33 pp.63-68 |
| RECONF | 2008-05-22 16:05 |
Fukushima | The University of Aizu | A Novel Cluster Structure for Variable Grain Logic Cell Kazuki Inoue, Kazunori Matsuyama, Yoshiaki Satou, Masahiro Koga, Motoki Amagasaki, Masahiro Iida, Toshinori Sueyoshi (Kumamoto Univ.) RECONF2008-8 |
Reconfigurable logic devices (RLDs) are classified as fine-grained or coarse-grained types on the basis of their basic l... [more] | RECONF2008-8 pp.43-48 |
| VLD, CPSY, RECONF, DC, IPSJ-SLDM, IPSJ-ARC (Joint) [detail] |
2007-11-20 15:35 |
Fukuoka | Kitakyushu International Conference Center | A Study of Conection Block Structure and Implementation Methods of Multi-Input Functions for Variable Grain Logic Cell Kazunori Matsuyama, Ryoichi Yamaguchi, Yoshiaki Satou, Hiroshi Miura, Masahiro Koga, Kazuki Inoue, Motoki Amagasaki, Masahiro Iida, Toshinori Sueyoshi (Kumamoto Univ.) RECONF2007-33 |
Since VGLC(Variable Grain Logic Cell) has a feature set both coarse-grained and fine-grained types, its structure can ... [more] |
RECONF2007-33 pp.7-12 |
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