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1. 发明申请

US20140233084A1 PHASE MODULATION APPARATUS 有权
标题翻译：相位调制装置
公开(公告)号：US20140233084A1
公开(公告)日：2014-08-21
申请号：US13871714
申请日：2013-04-26
申请人： NTT ELECTRONICS CORPORATION , NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Shigeru Ono , Kouichi Ogihara , Jun Endo , Mikio Yoneyama
IPC分类号： G02F1/01
CPC分类号： G02F1/01 , G02F1/0123 , G02F1/225 , G02F2001/212 , G02F2203/21 , H04B10/5053 , H04B10/50577 , H04B10/5561 , H04B2210/517
摘要： A phase modulation apparatus has a light source outputting continuous light, two phase modulators, and an intensity modulator. The phase modulation apparatus is provided with an RZ phase modulation circuit, in which the phase modulators phase-modulate the continuous light from the light source with data signals input to the phase modulators and generate two phase modulation optical signals, a phase shifter shifts the phase of one phase modulation optical signal by π/2, and an intensity modulator intensity-modulates a multiplexed signal, combined with the other phase modulation optical signal, with an input clock signal CLK to convert the signal into an RZ signal, and, thus, to output the RZ signal, and a phase control circuit which adjusts the phases of the phase modulation optical signals generated by the phase modulator of the RZ phase modulation circuit so that the output of the RZ phase modulation circuit is maximum.
摘要翻译：相位调制装置具有输出连续光的光源，两相调制器和强度调制器。相位调制装置设置有RZ相位调制电路，其中相位调制器利用输入到相位调制器的数据信号对来自光源的连续光进行相位调制，并产生两个相位调制光信号，移相器将相位一个相位调制光信号由＆pgr / / 2组成，强度调制器利用输入时钟信号CLK对与多个其它相位调制光信号相结合的多路复用信号进行强度调制，将该信号转换成RZ信号，从而输出RZ信号;以及相位控制电路，其调整由RZ相位调制电路的相位调制器产生的相位调制光信号的相位，使得RZ相位调制电路的输出最大。

2. 发明授权

US09122084B2 Phase modulation apparatus 有权
标题翻译：相位调制装置
公开(公告)号：US09122084B2
公开(公告)日：2015-09-01
申请号：US13871714
申请日：2013-04-26
申请人： NTT ELECTRONICS CORPORATION , NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Shigeru Ono , Kouichi Ogihara , Jun Endo , Mikio Yoneyama
IPC分类号： G02F1/01 , G02F1/225 , H04B10/50 , H04B10/556 , G02F1/21
CPC分类号： G02F1/01 , G02F1/0123 , G02F1/225 , G02F2001/212 , G02F2203/21 , H04B10/5053 , H04B10/50577 , H04B10/5561 , H04B2210/517
摘要： A phase modulation apparatus has a light source outputting continuous light, two phase modulators, and an intensity modulator. The phase modulation apparatus is provided with an RZ phase modulation circuit, in which the phase modulators phase-modulate the continuous light from the light source with data signals input to the phase modulators and generate two phase modulation optical signals, a phase shifter shifts the phase of one phase modulation optical signal by π/2, and an intensity modulator intensity-modulates a multiplexed signal, combined with the other phase modulation optical signal, with an input clock signal CLK to convert the signal into an RZ signal, and, thus, to output the RZ signal, and a phase control circuit which adjusts the phases of the phase modulation optical signals generated by the phase modulator of the RZ phase modulation circuit so that the output of the RZ phase modulation circuit is maximum.
摘要翻译：相位调制装置具有输出连续光的光源，两相调制器和强度调制器。相位调制装置设置有RZ相位调制电路，其中相位调制器利用输入到相位调制器的数据信号对来自光源的连续光进行相位调制，并产生两个相位调制光信号，移相器将相位一个相位调制光信号由＆pgr / / 2组成，强度调制器利用输入时钟信号CLK对与多个其它相位调制光信号相结合的多路复用信号进行强度调制，将该信号转换成RZ信号，从而输出RZ信号;以及相位控制电路，其调整由RZ相位调制电路的相位调制器产生的相位调制光信号的相位，使得RZ相位调制电路的输出最大。

3. 发明授权

US10090921B2 Light modulation device and light modulation method 有权
公开(公告)号：US10090921B2
公开(公告)日：2018-10-02
申请号：US15302145
申请日：2015-04-10
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION , NTT Electronics Corporation
发明人： Mikio Yoneyama , Hiroto Kawakami , Takashi Ono , Akihiko Matsuura , Tomoyoshi Kataoka , Katsuya Tanaka , Masahiro Tachibana , Yuya Oyama
IPC分类号： H04B10/12 , H04B10/04 , H04B10/00 , H04B10/079 , H04B10/516 , H04L27/36 , H04J14/08 , H04B10/564 , G02F1/01
摘要： A light modulation device detects a power of the modulated optical signal modulated by each of an I-component optical modulator and a Q-component optical modulator, synchronously-detects a component of a frequency fd from the power of the modulated optical signal, outputs a dither signal of a frequency fd/n (where n is a positive integer equal to or larger than 1) applied to a first bias voltage or a second bias voltage when adjusting the first bias voltage or the second bias voltage, outputs two dither signals having a frequency fd/m (where m is a positive integer equal to or larger than 1, where n

4. 发明授权

US10243664B2 Optical modulator driver circuit and optical transmitter 有权
公开(公告)号：US10243664B2
公开(公告)日：2019-03-26
申请号：US14889127
申请日：2014-05-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Munehiko Nagatani , Hideyuki Nosaka , Toshihiro Itoh , Koichi Murata , Hiroyuki Fukuyama , Takashi Saida , Shin Kamei , Hiroshi Yamazaki , Nobuhiro Kikuchi , Hiroshi Koizumi , Masafumi Nogawa , Hiroaki Katsurai , Hiroyuki Uzawa , Tomoyoshi Kataoka , Naoki Fujiwara , Hiroto Kawakami , Kengo Horikoshi , Yves Bouvier , Mikio Yoneyama , Shigeki Aisawa , Masahiro Suzuki
IPC分类号： H04B10/54 , H03F1/32 , H03F3/04 , H03F3/60 , H03G3/00 , H04B10/516 , H03F1/22 , H03F3/195 , H03F3/24 , H03F3/45 , H03G3/30 , H03F3/08 , H03G1/00
摘要： An optical modulator driver circuit (1) includes an amplifier (50, Q10, Q11, R10-R13), and a current amount adjustment circuit (51) capable of adjusting a current amount of the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) includes at least two current sources (IS10) that are individually ON/OFF-controllable in accordance with a binary control signal representing the desired operation mode.

5. 发明申请

US20160087727A1 Optical Modulator Driver Circuit and Optical Transmitter 审中-公开
标题翻译：光调制器驱动电路和光发射机
公开(公告)号：US20160087727A1
公开(公告)日：2016-03-24
申请号：US14889127
申请日：2014-05-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Munehiko Nagatani , Hideyuki Nosaka , Toshihiro Itoh , Koichi Murata , Hiroyuki Fukuyama , Takashi Saida , Shin Kamei , Hiroshi Yamazaki , Nobuhiro Kikuchi , Hiroshi Koizumi , Masafumi Nogawa , Hiroaki Katsurai , Hiroyuki Uzawa , Tomoyoshi Kataoka , Naoki Fujiwara , Hiroto Kawakami , Kengo Horikoshi , Yves Bouvier , Mikio Yoneyama , Shigeki Aisawa , Masahiro Suzuki
IPC分类号： H04B10/54 , H03G3/00 , H03F3/04 , H03F3/60 , H03F1/32
CPC分类号： H04B10/541 , H03F1/223 , H03F1/32 , H03F3/04 , H03F3/082 , H03F3/195 , H03F3/245 , H03F3/45085 , H03F3/45089 , H03F3/45183 , H03F3/45188 , H03F3/602 , H03F2200/18 , H03F2200/219 , H03F2200/255 , H03F2200/27 , H03F2200/336 , H03F2200/411 , H03F2200/72 , H03F2200/75 , H03F2203/45258 , H03F2203/45374 , H03F2203/45392 , H03F2203/45454 , H03F2203/45466 , H03F2203/45471 , H03F2203/45486 , H03F2203/45496 , H03F2203/45504 , H03F2203/45506 , H03F2203/45702 , H03G1/0023 , H03G1/0082 , H03G1/0088 , H03G3/00 , H03G3/001 , H03G3/3084 , H04B10/5561 , H04B10/588
摘要： An optical modulator driver circuit (1) includes an amplifier (50, Q10, Q11, R10-R13), and a current amount adjustment circuit (51) capable of adjusting a current amount of the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) includes at least two current sources (IS10) that are individually ON/OFF-controllable in accordance with a binary control signal representing the desired operation mode.
摘要翻译：光调制器驱动电路（1）包括放大器（50，Q10，Q11，R10-R13）和电流量调节电路（51），能够根据期望的操作调节放大器（50）的电流量模式。电流量调节电路（51）包括至少两个根据表示期望的操作模式的二进制控制信号单独地进行ON / OFF控制的电流源（IS10）。

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