-
公开(公告)号：US08180226B2
公开(公告)日：2012-05-15
申请号：US12661884
申请日：2010-03-25
申请人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
发明人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： The present invention relates to an optical receiver, and particularly, to an optical receiver by which a DQPSK-modulated optical signal is demodulated to a multilevel phase-modulated signal.
摘要翻译： 光接收机技术领域本发明涉及一种光接收机，特别涉及将DQPSK调制光信号解调为多电平相位调制信号的光接收机。
-
公开(公告)号：US08054524B2
公开(公告)日：2011-11-08
申请号：US12602341
申请日：2008-05-30
CPC分类号： H01S3/1301 , H01S3/06754 , H01S3/1305 , H04B10/296
摘要： A high-speed optical amplifier is considered to be an important optical device because of an increasing demand of routing, which is accompanied by an increase in complexity of networks. It is difficult to satisfy a response performance by related-art techniques, and there has been a problem in achieving a high-speed response performance of 10 microseconds or less.An optical amplifier according to the present invention includes: an input monitor means 500; an optical amplification means 310 including an optical amplification medium 300, and a control means 400 for performing feed-forward control. When the optical amplification means is controlled by the feed-forward control in response to a signal of the input monitor means 500, an overshoot signal is applied as a control signal so that a slow response performance specific to the optical amplification medium has been improved, and thereby high-speed response performance has been achieved.
摘要翻译： 高速光放大器被认为是重要的光器件，因为路由需求的增加，伴随着网络的复杂性的增加。 通过现有技术难以满足响应性能，并且在实现10微秒以下的高速响应性能方面存在问题。 根据本发明的光放大器包括：输入监视装置500; 包括光放大介质300的光放大装置310和用于执行前馈控制的控制装置400。 当通过输入监视装置500的信号通过前馈控制来控制光放大装置时，施加过冲信号作为控制信号，使得光放大介质特有的缓慢响应性能得到改善， 从而实现了高速响应性能。
-
公开(公告)号：US07511894B2
公开(公告)日：2009-03-31
申请号：US11704221
申请日：2007-02-09
申请人： Takashi Hiraga , Nobutaka Tanigaki , Noritaka Yamamoto , Toshiko Mizokuro , Ichiro Ueno , Norio Tanaka , Hiroshi Nagaeda , Noriyasu Shiga
发明人： Takashi Hiraga , Nobutaka Tanigaki , Noritaka Yamamoto , Toshiko Mizokuro , Ichiro Ueno , Norio Tanaka , Hiroshi Nagaeda , Noriyasu Shiga
CPC分类号： G11C13/04 , G02B7/028 , G02F1/0126 , G02F3/02
摘要： A flip-flop circuit of the present invention includes a first switch and a second switch which are connected in series to each other. The first switch includes: two input ports upon which light source light and signal light are incident; two output ports for outputting an optical output; and a thermal lens forming element for forming a thermal lens in a predetermined optical inputting condition. Although the second switch is composed in the same manner as that of the first switch, a relation between the wave-lengths to be utilized is inverted. When a state is changed from OFF to ON, a pulse signal is inputted for setting and one of the rays of output light of the second switch is fed-back to the first switch so as to maintain the state of ON. When the state is changed from ON to OFF, a pulse of additional signal light is inputted. Due to the foregoing, the two states of ON and OFF can be stably maintained.
摘要翻译： 本发明的触发器电路包括彼此串联连接的第一开关和第二开关。 第一开关包括：光源光和信号光入射的两个输入端口; 两个输出端口，用于输出光输出; 以及用于在预定的光学输入条件下形成热透镜的热透镜形成元件。 虽然第二开关以与第一开关相同的方式构成，但是要使用的波长之间的关系被反转。 当状态从OFF变为ON时，输入脉冲信号以进行设置，并且将第二开关的输出光的一个反馈到第一开关，以保持ON状态。 当状态从ON变为OFF时，输入附加信号光的脉冲。 由于上述原因，可以稳定地保持ON和OFF的两个状态。
-
4.发明申请公开(公告)号：US20130057945A1
公开(公告)日：2013-03-07
申请号：US13637582
申请日：2011-03-29
申请人： Ichiro Ueno , Takashi Hiraga , Noritaka Yamamoto , Hirobumi Watanabe , Shiro Futaki , Noriyasu Shiga , Norio Tanaka , Shigeru Takarada
发明人： Ichiro Ueno , Takashi Hiraga , Noritaka Yamamoto , Hirobumi Watanabe , Shiro Futaki , Noriyasu Shiga , Norio Tanaka , Shigeru Takarada
IPC分类号： G02F1/29
CPC分类号： G02F1/293 , G02F2201/08
摘要： An optical-path-switching apparatus according to the present invention includes a reducing optical system capable of guiding signal light and control light along the direction of gravity into a thermal-lens-forming optical element having an incidence plane positioned to be perpendicular to the direction of gravity in such a way as to differentiate respective convergence points in a direction perpendicular to the optical axis. The apparatus further includes a light-receiving unit configured to converge or condense straight-traveling signal light in the absence of irradiation with the control light and signal light whose optical path has been switched due to irradiation with the control light using the same optical element. Further, the apparatus includes a wedge-type prism provided at a passing position of the optical-path-switched signal light to increase the distance between the optical axis of the optical-path-changed signal light and the optical axis of the straight-traveling signal light.
摘要翻译： 根据本发明的光路切换装置包括：还原光学系统，其能够将信号光沿着重力方向引导到具有与所述方向垂直的入射面的热透镜形成用光学元件中， 的重力，以便在垂直于光轴的方向上区分各个会聚点。 该装置还包括：光接收单元，其被配置为在没有照射控制光的情况下会聚或冷凝直行信号光，并且由于使用相同的光学元件的控制光的照射而使光路已切换的信号光。 此外，该装置包括设置在光路切换信号光的通过位置处的楔形棱镜，以增加光路改变信号光的光轴与直线行进光信号的光轴之间的距离 信号灯。
-
公开(公告)号：US20110052212A1
公开(公告)日：2011-03-03
申请号：US12661884
申请日：2010-03-25
申请人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
发明人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： The present invention relates to an optical receiver, and particularly, to an optical receiver by which a DQPSK-modulated optical signal is demodulated to a multilevel phase-modulated signal.
摘要翻译： 光接收机技术领域本发明涉及一种光接收机，特别涉及将DQPSK调制光信号解调为多电平相位调制信号的光接收机。
-
公开(公告)号：US20100134862A1
公开(公告)日：2010-06-03
申请号：US12602341
申请日：2008-05-30
CPC分类号： H01S3/1301 , H01S3/06754 , H01S3/1305 , H04B10/296
摘要： A high-speed optical amplifier is considered to be an important optical device because of an increasing demand of routing, which is accompanied by an increase in complexity of networks. It is difficult to satisfy a response performance by related-art techniques, and there has been a problem in achieving a high-speed response performance of 10 microseconds or less.An optical amplifier according to the present invention includes: an input monitor means 500; an optical amplification means 310 including an optical amplification medium 300, and a control means 400 for performing feed-forward control. When the optical amplification means is controlled by the feed-forward control in response to a signal of the input monitor means 500, an overshoot signal is applied as a control signal so that a slow response performance specific to the optical amplification medium has been improved, and thereby high-speed response performance has been achieved.
摘要翻译： 高速光放大器被认为是重要的光器件，因为路由需求的增加，伴随着网络的复杂性的增加。 通过现有技术难以满足响应性能，并且在实现10微秒以下的高速响应性能方面存在问题。 根据本发明的光放大器包括：输入监视装置500; 包括光放大介质300的光放大装置310和用于执行前馈控制的控制装置400。 当通过输入监视装置500的信号通过前馈控制来控制光放大装置时，施加过冲信号作为控制信号，使得光放大介质特有的缓慢响应性能得到改善， 从而实现了高速响应性能。
-
7.发明授权公开(公告)号：US08659818B2
公开(公告)日：2014-02-25
申请号：US13637582
申请日：2011-03-29
申请人： Ichiro Ueno , Takashi Hiraga , Noritaka Yamamoto , Hirobumi Watanabe , Shiro Futaki , Noriyasu Shiga , Norio Tanaka , Shigeru Takarada
发明人： Ichiro Ueno , Takashi Hiraga , Noritaka Yamamoto , Hirobumi Watanabe , Shiro Futaki , Noriyasu Shiga , Norio Tanaka , Shigeru Takarada
CPC分类号： G02F1/293 , G02F2201/08
摘要： An optical-path-switching apparatus according to the present invention includes a reducing optical system capable of guiding signal light and control light along the direction of gravity into a thermal-lens-forming optical element having an incidence plane positioned to be perpendicular to the direction of gravity in such a way as to differentiate respective convergence points in a direction perpendicular to the optical axis. The apparatus further includes a light-receiving unit configured to converge or condense straight-traveling signal light in the absence of irradiation with the control light and signal light whose optical path has been switched due to irradiation with the control light using the same optical element. Further, the apparatus includes a wedge-type prism provided at a passing position of the optical-path-switched signal light to increase the distance between the optical axis of the optical-path-changed signal light and the optical axis of the straight-traveling signal light.
摘要翻译： 根据本发明的光路切换装置包括：还原光学系统，其能够将信号光沿着重力方向引导到具有与所述方向垂直的入射面的热透镜形成用光学元件中， 的重力，以便在垂直于光轴的方向上区分各个会聚点。 该装置还包括：光接收单元，其被配置为在没有照射控制光的情况下会聚或冷凝直行信号光，并且由于使用相同的光学元件的控制光的照射而使光路已切换的信号光。 此外，该装置包括设置在光路切换信号光的通过位置处的楔形棱镜，以增加光路改变信号光的光轴与直线行进光信号的光轴之间的距离 信号灯。
-
公开(公告)号：US20120301158A1
公开(公告)日：2012-11-29
申请号：US13576531
申请日：2010-02-01
申请人： Masahito Mure , Kaoru Higuma , Toshio Kataoka , Norikazu Miyazaki , Masahide Miyachi , Youichi Oikawa , Noriyasu Shiga , Hiroshi Nagaeda
发明人： Masahito Mure , Kaoru Higuma , Toshio Kataoka , Norikazu Miyazaki , Masahide Miyachi , Youichi Oikawa , Noriyasu Shiga , Hiroshi Nagaeda
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： An optical receiver includes interference means 2 for branching the optical signal modulated in a DQPSK manner into two light beams, delaying at least one branched light beam so that two branched light beams have a predetermined phase difference, rotating the polarization plane of at least one branched light beam so that the polarization planes of the two branched light beams are orthogonal to each other, and coupling the two branched light beams, light separation adjusting means 3 to 5 for separating the output light beam from the interference means and adjusting the polarization planes of the separated light beams, and detection means 6 and 6′ for detecting light intensities of the separated light beams output from the light separation adjusting means, wherein an I-component signal and a Q-component signal are generated on the basis of detection signals from the detection means.
摘要翻译： 光接收机包括干扰装置2，用于将以DQPSK方式调制的光信号分支成两个光束，延迟至少一个分支光束，使得两个分支光束具有预定的相位差，旋转至少一个分支的偏振面 光束使得两个分支光束的偏振平面彼此正交，并且耦合两个分支光束，光分离调节装置3至5，用于将输出光束与干涉装置分离并调整偏振面 分离的光束，以及用于检测从光分离调节装置输出的分离的光束的光强度的检测装置6和6'，其中基于来自光分离调节装置的检测信号产生I分量信号和Q分量信号 检测装置。
-
公开(公告)号：US20100245960A1
公开(公告)日：2010-09-30
申请号：US12801300
申请日：2010-06-02
申请人： Ichiro Ueno , Nobutaka Tanigaki , Noritaka Yamamoto , Toshiko Mizokuro , Takashi Hiraga , Norio Tanaka , Hiroshi Nagaeda , Noriyasu Shiga
发明人： Ichiro Ueno , Nobutaka Tanigaki , Noritaka Yamamoto , Toshiko Mizokuro , Takashi Hiraga , Norio Tanaka , Hiroshi Nagaeda , Noriyasu Shiga
CPC分类号： G02F1/0147 , G02F1/0126 , G02F1/293 , G02F1/31
摘要： An optical deflection apparatus includes a signal light source configured to emit signal light having one or more wavelengths, a control light source configured to emit control light having a wavelength different from the wavelength of the signal light, a thermal lens forming optical element including a light absorption layer configured to transmit the signal light and selectively absorb the control light, and a beam-condensing unit configured to cause beam-condensation of the control light and the signal light at different convergence points in the light absorption layer. The thermal lens forming optical element causes convergence and divergence of the control light and the signal light on an incidence plane of the light absorption layer or its vicinity in a light traveling direction, wherein a thermal lens is reversibly formed in the light absorption layer due to a temperature increase occurring in a region where the control light is absorbed and its peripheral region, and the thermal lens changes a refractive index to change a traveling direction of the signal light.
摘要翻译： 一种光学偏转装置，包括配置为发射具有一个或多个波长的信号光的信号光源，被配置为发射具有与信号光的波长不同的波长的控制光的控制光源，包括光的热透镜形成光学元件 吸收层，被配置为透射信号光并选择性地吸收控制光;以及光束聚光单元，被配置为使得光吸收层中的控制光和信号光在不同会聚点处的光束冷凝。 热透镜形成光学元件引起控制光和信号光在光传播方向上的光吸收层或其附近的入射平面的会聚和发散，其中热透镜在光吸收层中可逆地形成，由于 发生在控制光被吸收的区域中的温度升高及其周边区域，并且热透镜改变折射率以改变信号光的行进方向。
-
公开(公告)号：US20070263426A1
公开(公告)日：2007-11-15
申请号：US11704221
申请日：2007-02-09
申请人： Takashi Hiraga , Nobutaka Tanigaki , Noritaka Yamamoto , Toshiko Mizokuro , Ichiro Ueno , Norio Tanaka , Hiroshi Nagaeda , Noriyasu Shiga
发明人： Takashi Hiraga , Nobutaka Tanigaki , Noritaka Yamamoto , Toshiko Mizokuro , Ichiro Ueno , Norio Tanaka , Hiroshi Nagaeda , Noriyasu Shiga
IPC分类号： G11C11/42
CPC分类号： G11C13/04 , G02B7/028 , G02F1/0126 , G02F3/02
摘要： A flip-flop circuit of the present invention includes a first switch and a second switch which are connected in series to each other. The first switch includes: two input ports upon which light source light and signal light are incident; two output ports for outputting an optical output; and a thermal lens forming element for forming a thermal lens in a predetermined optical inputting condition. Although the second switch is composed in the same manner as that of the first switch, a relation between the wave-lengths to be utilized is inverted. When a state is changed from OFF to ON, a pulse signal is inputted for setting and one of the rays of output light of the second switch is fed-back to the first switch so as to maintain the state of ON. When the state is changed from ON to OFF, a pulse of additional signal light is inputted. Due to the foregoing, the two states of ON and OFF can be stably maintained.
摘要翻译： 本发明的触发器电路包括彼此串联连接的第一开关和第二开关。 第一开关包括：光源光和信号光入射的两个输入端口; 两个输出端口，用于输出光输出; 以及用于在预定的光学输入条件下形成热透镜的热透镜形成元件。 虽然第二开关以与第一开关相同的方式构成，但是要使用的波长之间的关系被反转。 当状态从OFF变为ON时，输入脉冲信号以进行设置，并且将第二开关的输出光的一个反馈到第一开关，以保持ON状态。 当状态从ON变为OFF时，输入附加信号光的脉冲。 由于上述原因，可以稳定地保持ON和OFF的两个状态。
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.017 秒)
