公开(公告)号：US07860408B2

公开(公告)日：2010-12-28

申请号：US11651591

申请日：2007-01-10

申请人： Akihiko Isomura ,  Jens Rasmussen ,  Takafumi Terahara ,  Kentaro Nakamura ,  Takeshi Hoshida ,  George Ishikawa ,  Hiroshi Onaka ,  Morio Wada ,  Hiroyuki Matsuura ,  Akira Miura ,  Yasuyuki Suzuki ,  Hideaki Arai ,  Satoshi Takasugi

发明人： Akihiko Isomura ,  Jens Rasmussen ,  Takafumi Terahara ,  Kentaro Nakamura ,  Takeshi Hoshida ,  George Ishikawa ,  Hiroshi Onaka ,  Morio Wada ,  Hiroyuki Matsuura ,  Akira Miura ,  Yasuyuki Suzuki ,  Hideaki Arai ,  Satoshi Takasugi

IPC分类号： H04B10/06

CPC分类号： G02F1/225 ,  G02F2203/21 ,  H04L1/0047 ,  H04L27/223

摘要： An interferometer for demodulating a differential M-phase shift keying signal includes a PLC type interferometer main body, a heating portion that heats the PLC type interferometer main body, and an intermediate member having a higher stiffness than that of the PLC type interferometer main body, for bonding the PLC type interferometer main body and the heating portion with each other while being sandwiched therebetween. A linear expansion coefficient difference between the PLC type interferometer main body and the intermediate member is equal to or smaller than 4.5×10−6/° C., and a thermal conductivity difference between the PLC type interferometer main body and the intermediate member is equal to or larger than 10 W/mK. A phase of an optical signal flowing through the interferometer is adjusted by using the heating portion and a second heating portion.

摘要翻译： 用于解调差分M相移键控信号的干涉仪包括PLC型干涉仪主体，加热PLC型干涉仪主体的加热部分和具有比PLC型干涉仪主体更高刚度的中间部件， 用于将PLC型干涉仪主体和加热部分夹在两者之间彼此粘合。 PLC型干涉仪主体与中间构件之间的线膨胀系数差等于或小于4.5×10-6 /℃，PLC型干涉仪主体与中间构件之间的热导率差相等 至10W / mK以上。 通过使用加热部和第二加热部来调节流过干涉仪的光信号的相位。

公开(公告)号：US20070177151A1

公开(公告)日：2007-08-02

申请号：US11651591

申请日：2007-01-10

申请人： Akihiko Isomura ,  Jens Rasmussen ,  Takafumi Terahara ,  Kentaro Nakamura ,  Takeshi Hoshida ,  George Ishikawa ,  Hiroshi Onaka ,  Morio Wada ,  Hiroyuki Matsuura ,  Akira Miura ,  Yasuyyki Suzuki ,  Hideaki Arai ,  Satoshi Takasugi

发明人： Akihiko Isomura ,  Jens Rasmussen ,  Takafumi Terahara ,  Kentaro Nakamura ,  Takeshi Hoshida ,  George Ishikawa ,  Hiroshi Onaka ,  Morio Wada ,  Hiroyuki Matsuura ,  Akira Miura ,  Yasuyyki Suzuki ,  Hideaki Arai ,  Satoshi Takasugi

IPC分类号： G01B9/02

CPC分类号： G02F1/225 ,  G02F2203/21 ,  H04L1/0047 ,  H04L27/223

摘要： An interferometer for demodulating a differential M-phase shift keying signal includes a PLC type interferometer main body, a heating portion that heats the PLC type interferometer main body, and an intermediate member having a higher stiffness than that of the PLC type interferometer main body, for bonding the PLC type interferometer main body and the heating portion with each other while being sandwiched therebetween. A linear expansion coefficient difference between the PLC type interferometer main body and the intermediate member is equal to or smaller than 4.5×10−6/° C., and a thermal conductivity difference between the PLC type interferometer main body and the intermediate member is equal to or larger than 10 W/mK. A phase of an optical signal flowing through the interferometer is adjusted by using the heating portion and a second heating portion.

摘要翻译： 用于解调差分M相移键控信号的干涉仪包括PLC型干涉仪主体，加热PLC型干涉仪主体的加热部分和具有比PLC型干涉仪主体更高刚度的中间部件， 用于将PLC型干涉仪主体和加热部分夹在两者之间彼此粘合。 PLC型干涉仪主体与中间部件之间的线膨胀系数差等于或小于4.5×10 -6 /℃，PLC型干涉仪主体之间的热导率差 中间部件为10W / m·K以上。 通过使用加热部和第二加热部来调节流过干涉仪的光信号的相位。

公开(公告)号：US06980707B2

公开(公告)日：2005-12-27

申请号：US10653918

申请日：2003-09-04

申请人： Takafumi Chiba ,  Satoshi Takasugi ,  Tetsu Hasegawa ,  Hisato Uetsuka

发明人： Takafumi Chiba ,  Satoshi Takasugi ,  Tetsu Hasegawa ,  Hisato Uetsuka

IPC分类号： G02B6/00 ,  G02B6/12 ,  G02F1/01 ,  G02F1/225

CPC分类号： G02F1/225 ,  G02F1/0147 ,  G02F2001/0113 ,  G02F2203/48

摘要： A waveguide type variable optical attenuator has: a substrate; two optical circuits that are in parallel formed on the substrate, each of the optical circuits including two couplers that conduct the branching and coupling of light and are connected to the input port and output port of light and two waveguides through which the two couplers are connected; a polarization maintaining fiber one end of which is connected to the output port of one of the two optical circuits and the other end of which is connected to the input port of the other of the two optical circuits while being twisted 90°; and a heater that is provided around neighboring waveguides of the two optical circuits such that the neighboring waveguides share heat to be generated by the heater.

摘要翻译： 波导型可变光衰减器具有：基板; 平行地形成在基板上的两个光电路，每个光电路包括两个耦合器，两个耦合器传导光的分支和耦合，并连接到光的输入端口和输出端口以及两个耦合器所连接的两个波导 ; 保偏光纤的一端连接到两个光电路之一的输出端口，另一端连接到两个光电路中的另一个的输入端口，同时扭转90°; 以及设置在两个光电路的相邻波导周围的加热器，使得相邻波导共享由加热器产生的热量。