検索結果 13 件

前野 一誠, 佐野 明秀 電子情報通信学会論文誌B 通信 J104-B (8), 720-722, 2021-08-01

位相共役ツイン波(PCTW)を用いた長スパン多中継光ファイバ伝送において，信号多重化方式，パルス形状，及びシンボル速度が伝送特性に及ぼす影響を評価する．偏波領域PCTWではシンボル速度が低い領域で伝送特性に劣化が生じることを明らかにする．

DOI

Nakagawa Ryoto, Takanashi Yuya, Nakamura Moriya IEICE Communications Express 10 (2), 87-92, 2021-02-01

<p>We investigated a novel demodulation technology based on our proposed electrical butterfly operation scheme which compensates for optical nonlinear distortion of conventional single-sideband …

DOI Web Site 参考文献11件

Yasuhiro Okamura, Atsushi Takada Japanese Journal of Applied Physics 58 (SJ), SJJA04-, 2019-07-22

DOI Web Site Web Site 参考文献22件

KIMURA Takeshi, OKAMURA Yasuhiro, TAKADA Atsushi IEICE Transactions on Communications E102.B (4), 810-817, 2019-04-01

...waves are considered theoretically....

DOI 機関リポジトリ Web Site 被引用文献1件 参考文献11件

Okamura, Yasuhiro, Nagatomi, Ikuya, Takada, Atsushi The Review of Laser Engineering 46 (6), 326-330, 2018-06

...This study aimed to build a numerical model of carrier extraction from dual-polarization phase-conjugated twin waves (DP-PCTWs) to investigate polarization dependence on the carrier extraction in a pump...

機関リポジトリ Web Site

OKAMURA Yasuhiro, NAGATOMI Ikuya, TAKADA Atsushi レーザー研究 46 (6), 326-, 2018

...This study aimed to build a numerical model of carrier extraction from dual-polarization phaseconjugated twin waves (DP-PCTWs) to investigate polarization dependence on the carrier extraction in a pump...

DOI Web Site 参考文献1件

Okamura Yasuhiro, Abe Masashi, Kondo Kotaro, Okabe Takumi, Kazama Takushi, Sano Akihide, Umeki Takeshi, Kasahara Ryoichi, Takada Atsushi IEICE Communications Express 6 (10), 566-571, 2017

...<p>Pump phase-locking to fiber-transmitted quadrature phase-shift keying-phase-conjugated twin waves (QPSK-PCTWs) is experimentally demonstrated for the first time....

DOI Web Site 被引用文献2件 参考文献4件

Yasuhiro Okamura, Masashi Abe, Kotaro Kondo, Yuya Ohmichi, Takushi Kazama, Takeshi Umeki, Masafumi Koga, Atsushi Takada Optics Express 24 (23), 26300-, 2016-11-04

DOI Web Site 被引用文献4件 参考文献9件

Okamura Yasuhiro, Koga Masafumi, Takada Atsushi IEICE Communications Express 5 (6), 152-157, 2016

...This study proposes a heterodyne Costas optical phase-locked loop (HC-OPLL) circuit for frequency nondegenerate optical parametric phase-sensitive amplification (ND-PSA) of phase-conjugated twin waves...

DOI Web Site 被引用文献3件 参考文献4件

Xiang Liu, A. R. Chraplyvy, P. J. Winzer, R. W. Tkach, S. Chandrasekhar Nature Photonics 7 (7), 560-568, 2013-05-26

DOI PDF Web Site 被引用文献13件

河本 実, 柴田 俊忍, 鯉淵 興二 材料 12 (115), 224-234, 1963

...<br>The test results are 1) the hysteresis energy of the secondary wave must be larger than limiting value to cause fatigue damage, 2) twin waves are more liable to cause hardening than sinusoidal wave...

DOI Web Site

河本 実, 中川 隆夫, 柴田 俊忍, 生田 修三 材料試験 10 (95), 575-581, 1961

...waves, shown in Fig. 2, are different from those at the cyclic sinusoidal waves, that is, the secondary wave in the twin wave has an effect on the fatigue life depending on the stress magnitude, and (...

DOI Web Site

Gabor Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences 197 (1051), 454-487, 1949-07-07

...In this case the two twin waves are shown to correspond to two ‘twin objects’, one of which is the original, while the other is its mirror image with respect to the illuminating centre....

DOI Web Site 被引用文献20件