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公开(公告)号：US08208770B2
公开(公告)日：2012-06-26
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。
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公开(公告)号：US07826696B2
公开(公告)日：2010-11-02
申请号：US12223665
申请日：2007-02-21
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.
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公开(公告)号：US20070291346A1
公开(公告)日：2007-12-20
申请号：US11596277
申请日：2005-05-16
申请人： Hiroshi Nagaeda , Noriyasu Shiga
发明人： Hiroshi Nagaeda , Noriyasu Shiga
IPC分类号： G02F1/01
CPC分类号： G02F1/0316 , G02F1/0311
摘要： An optical device using an electro-optical element is of great utility value to industry, owing to its fast responsiveness and the like. Prior art has problems such as high cost due to a large number of parts, large device size, and high drive voltage, and it has been a challenge to reduce the number of parts to be used, to downsize the device, and to reduce drive voltage. An optical device of the invention has a reflection structure comprising an input fiber 1 and an output fiber 2 which are fastened by a duplex ferrule 3, a collimating lens 6, and a reflector element 9 for reflecting light. The optical device further comprises a cylindrical lens functioning as a condenser lens 7, and an electro-optical element 8, which is placed near a collection point of the condenser lens 7. Electrodes of the electro-optical element 8 are configured such that the interelectrode distance becomes smaller the closer they are to the collection part.
摘要翻译： 由于其快速响应性等，使用电光元件的光学装置对工业具有很大的效用。 现有技术存在诸如部件数量大，装置尺寸大，驱动电压大等问题，降低了使用部件的数量，减小了装置的尺寸以及减小驱动力是一个挑战 电压。 本发明的光学装置具有包括输入光纤1和输出光纤2的反射结构，该输入光纤1和输出光纤2通过双重套圈3，准直透镜6和用于反射光的反射器元件9紧固。 光学装置还包括用作聚光透镜7的圆柱形透镜和放置在聚光透镜7的收集点附近的电光元件8。 电光元件8的电极被配置为使得电极间距离越靠近收集部分越小。
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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。
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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。
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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。
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17.发明授权Variable optical attenuator having a waveguide and an optically coupled layer with a power monitor 失效具有波导的可变光衰减器和具有功率监视器的光耦合层公开(公告)号：US07043132B2
公开(公告)日：2006-05-09
申请号：US10761619
申请日：2004-01-21
IPC分类号： G02B6/00
CPC分类号： G02F1/011 , G02B6/266 , G02F1/0121 , G02F2201/58 , G02F2203/48
摘要： The intensity of signals in optical networks can be controlled using a variable optical attenuator (VOA). The present invention is a VOA that is particularly well suited for optical networks, for example to provide channel-by-channel normalization of gain control of wavelength division multiplexed signals. The inventive VOA includes a waveguide having a cladding that includes an electro-optical material and electrodes that produce an electric field within the electro-optical material when a voltage difference is applied to the electrodes. The VOA also includes a layer that is parallel to the core of the waveguide and that optically couples to the core to receive light from the attenuated signal. A power meter receives light from the layer as an indication of the amount of light attenuated from the signal and for controlling the voltage to the electrodes.
摘要翻译： 可以使用可变光衰减器（VOA）来控制光网络中的信号强度。 本发明是特别适用于光网络的VOA，例如提供波分复用信号的增益控制的逐通道归一化。 本发明的VOA包括具有包层的波导，该包层具有电光材料和当对电极施加电压差时在电光材料内产生电场的电极。 VOA还包括平行于波导的核心并且光耦合到芯以从衰减信号接收光的层。 功率计从该层接收光，作为从信号衰减的光量的指示，并用于控制电极的电压。
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公开(公告)号：US07565040B2
公开(公告)日：2009-07-21
申请号：US11596277
申请日：2005-05-16
申请人： Hiroshi Nagaeda , Noriyasu Shiga
发明人： Hiroshi Nagaeda , Noriyasu Shiga
IPC分类号： G02B6/00
CPC分类号： G02F1/0316 , G02F1/0311
摘要： An optical device using an electro-optical element is of great utility value to industry, owing to its fast responsiveness and the like. Prior art has problems such as high cost due to a large number of parts, large device size, and high drive voltage, and it has been a challenge to reduce the number of parts to be used, to downsize the device, and to reduce drive voltage. An optical device of the invention has a reflection structure comprising an input fiber 1 and an output fiber 2 which are fastened by a duplex ferrule 3, a collimating lens 6, and a reflector element 9 for reflecting light. The optical device further comprises a cylindrical lens functioning as a condenser lens 7, and an electro-optical element 8, which is placed near a collection point of the condenser lens 7. Electrodes of the electro-optical element 8 are configured such that the interelectrode distance becomes smaller the closer they are to the collection part.
摘要翻译： 由于其快速响应性等，使用电光元件的光学装置对工业具有很大的效用。 现有技术存在诸如部件数量大，装置尺寸大，驱动电压大等问题，降低了使用部件的数量，减小了装置的尺寸以及减小驱动力是一个挑战 电压。 本发明的光学装置具有包括输入光纤1和输出光纤2的反射结构，该输入光纤1和输出光纤2通过双重套圈3，准直透镜6和用于反射光的反射器元件9紧固。 光学装置还包括用作聚光透镜7的圆柱形透镜和放置在聚光透镜7的收集点附近的电光元件8.电光元件8的电极被构造成使得电极 距收集部分的距离越小。
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公开(公告)号：US20090022453A1
公开(公告)日：2009-01-22
申请号：US12223665
申请日：2007-02-21
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。
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20.发明申请Variable optical attenuator having a waveguide and an optically coupled layer with a power monitor 失效具有波导的可变光衰减器和具有功率监视器的光耦合层公开(公告)号：US20050157983A1
公开(公告)日：2005-07-21
申请号：US10761619
申请日：2004-01-21
CPC分类号： G02F1/011 , G02B6/266 , G02F1/0121 , G02F2201/58 , G02F2203/48
摘要： The intensity of signals in optical networks can be controlled using a variable optical attenuator (VOA). The present invention is a VOA that is particularly well suited for optical networks, for example to provide channel-by-channel normalization of gain control of wavelength division multiplexed signals. The inventive VOA includes a waveguide having a cladding that includes an electro-optical material and electrodes that produce an electric field within the electro-optical material when a voltage difference is applied to the electrodes. The VOA also includes a layer that is parallel to the core of the waveguide and that optically couples to the core to receive light from the attenuated signal. A power meter receives light from the layer as an indication of the amount of light attenuated from the signal and for controlling the voltage to the electrodes.
摘要翻译： 可以使用可变光衰减器（VOA）来控制光网络中的信号强度。 本发明是特别适用于光网络的VOA，例如提供波分复用信号的增益控制的逐通道归一化。 本发明的VOA包括具有包层的波导，该包层具有电光材料和当对电极施加电压差时在电光材料内产生电场的电极。 VOA还包括平行于波导的核心并且光耦合到芯以从衰减信号接收光的层。 功率计从该层接收光，作为从信号衰减的光量的指示，并用于控制电极的电压。
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