公开(公告)号：US20130108217A1

公开(公告)日：2013-05-02

申请号：US13666692

申请日：2012-11-01

申请人： Hiroshi Terui ,  Fumihiro Ebisawa ,  Shunichi Soma ,  Akira Komiyama ,  Keiichi Morita ,  Fumito Nakajima ,  Yusuke Nasu

发明人： Hiroshi Terui ,  Fumihiro Ebisawa ,  Shunichi Soma ,  Akira Komiyama ,  Keiichi Morita ,  Fumito Nakajima ,  Yusuke Nasu

IPC分类号： G02B6/32

CPC分类号： G02B3/0025 ,  G02B3/005 ,  G02B6/3636 ,  G02B6/4204 ,  G02B6/423

摘要： A microlens array, which maintains high positional accuracy with respect to an optical circuit such as a waveguide and facilitates connection operation, and an optical transmission component including the microlens array.SolutionThe microlens array is provided with a plurality of microlenses arranged in an array structure and having the same length in the optical axis direction and optical fibers for alignment arranged at both ends of the array structure so that the optical axis is parallel to the optical axis of the microlens and having a length in the optical axis direction the same as the length of the microlens and a guided mode diameter smaller than an aperture of the microlens.

摘要翻译： 一种微透镜阵列，其相对于诸如波导的光电路保持高位置精度并且便于连接操作，以及包括微透镜阵列的光传输部件。 解决方案微透镜阵列具有布置在阵列结构中并且在光轴方向上具有相同长度的多个微透镜，并且布置在阵列结构的两端的对准光纤使得光轴平行于光轴 的微透镜，并且在光轴方向上的长度与微透镜的长度相同，并且具有小于微透镜的孔径的引导模式直径。

公开(公告)号：US09036965B2

公开(公告)日：2015-05-19

申请号：US13666692

申请日：2012-11-01

申请人： Hiroshi Terui ,  Fumihiro Ebisawa ,  Shunichi Soma ,  Akira Komiyama ,  Keiichi Morita ,  Fumito Nakajima ,  Yusuke Nasu

发明人： Hiroshi Terui ,  Fumihiro Ebisawa ,  Shunichi Soma ,  Akira Komiyama ,  Keiichi Morita ,  Fumito Nakajima ,  Yusuke Nasu

IPC分类号： G02B6/32 ,  G02B3/00 ,  G02B6/36 ,  G02B6/42

CPC分类号： G02B3/0025 ,  G02B3/005 ,  G02B6/3636 ,  G02B6/4204 ,  G02B6/423

摘要： A microlens array, which maintains high positional accuracy with respect to an optical circuit such as a waveguide and facilitates connection operation, and an optical transmission component including the microlens array.SolutionThe microlens array is provided with a plurality of microlenses arranged in an array structure and having the same length in the optical axis direction and optical fibers for alignment arranged at both ends of the array structure so that the optical axis is parallel to the optical axis of the microlens and having a length in the optical axis direction the same as the length of the microlens and a guided mode diameter smaller than an aperture of the microlens.

摘要翻译： 一种微透镜阵列，其相对于诸如波导的光电路保持高位置精度并且便于连接操作，以及包括微透镜阵列的光传输部件。 解决方案微透镜阵列具有布置在阵列结构中并且在光轴方向上具有相同长度的多个微透镜，并且布置在阵列结构的两端的对准光纤使得光轴平行于光轴 的微透镜，并且在光轴方向上的长度与微透镜的长度相同，并且具有小于微透镜的孔径的引导模式直径。

公开(公告)号：US20120328236A1

公开(公告)日：2012-12-27

申请号：US13528476

申请日：2012-06-20

申请人： Yusuke Nasu ,  Ryoichi Kasahara ,  Ikuo Ogawa ,  Kenya Suzuki ,  Fumihiro Ebisawa

发明人： Yusuke Nasu ,  Ryoichi Kasahara ,  Ikuo Ogawa ,  Kenya Suzuki ,  Fumihiro Ebisawa

IPC分类号： G02B6/12

CPC分类号： G02B6/4267 ,  G02B6/12002 ,  G02B6/12004 ,  G02B6/12033 ,  G02B6/3508 ,  G02B6/4292 ,  G02B2006/12159

摘要： In an integrated optical receiver or transmitter, both the displacement of an optical axis caused by thermal changes and the property degradation of an optical functional circuit are inhibited. A planar lightwave circuit having a substrate and a waveguide-type optical functional circuit formed thereon composed of a material different from that of the substrate, and includes a waveguide region formed only of an optical wavelength that is in contact with a side forming an emission-end face of the optical waveguide for propagating the light emitted from the optical functional circuit or an incident-end face of an optical waveguide for propagating the light incident on the optical functional circuit. The planar lightwave circuit is fixed to a fixing mount only at the bottom of the substrate where the waveguide region is formed.

摘要翻译： 在集成光接收器或发送器中，由热变化引起的光轴的位移和光功能电路的特性劣化都被抑制。 一种平面光波电路，具有由不同于基板的材料形成的基板和波导型光功能电路，并且包括仅形成与形成发光二极管的一侧接触的光波长的波导区域， 用于传播从光学功能电路发射的光或光波导的入射端面，用于传播入射在光学功能电路上的光的光波导的端面。 平面光波电路仅在形成波导区域的基板的底部固定到固定座。

公开(公告)号：US09116317B2

公开(公告)日：2015-08-25

申请号：US13528476

申请日：2012-06-20

申请人： Yusuke Nasu ,  Ryoichi Kasahara ,  Ikuo Ogawa ,  Kenya Suzuki ,  Fumihiro Ebisawa

发明人： Yusuke Nasu ,  Ryoichi Kasahara ,  Ikuo Ogawa ,  Kenya Suzuki ,  Fumihiro Ebisawa

IPC分类号： G02B6/30 ,  G02B6/42 ,  G02B6/35 ,  G02B6/12

CPC分类号： G02B6/4267 ,  G02B6/12002 ,  G02B6/12004 ,  G02B6/12033 ,  G02B6/3508 ,  G02B6/4292 ,  G02B2006/12159

摘要： In an integrated optical receiver or transmitter, both the displacement of an optical axis caused by thermal changes and the property degradation of an optical functional circuit are inhibited. A planar lightwave circuit having a substrate and a waveguide-type optical functional circuit formed thereon composed of a material different from that of the substrate, and includes a waveguide region formed only of an optical wavelength that is in contact with a side forming an emission-end face of the optical waveguide for propagating the light emitted from the optical functional circuit or an incident-end face of an optical waveguide for propagating the light incident on the optical functional circuit. The planar lightwave circuit is fixed to a fixing mount only at the bottom of the substrate where the waveguide region is formed.

摘要翻译： 在集成光接收器或发送器中，由热变化引起的光轴的位移和光功能电路的特性劣化都被抑制。 一种平面光波电路，具有由不同于基板的材料形成的基板和波导型光功能电路，并且包括仅形成与形成发光二极管的一侧接触的光波长的波导区域， 用于传播从光学功能电路发射的光或光波导的入射端面，用于传播入射在光学功能电路上的光的光波导的端面。 平面光波电路仅在形成波导区域的基板的底部固定到固定座。

公开(公告)号：US20100104237A1

公开(公告)日：2010-04-29

申请号：US12521867

申请日：2007-12-27

申请人： Yusuke Nasu ,  Manabu Oguma ,  Yasuaki Hashizume ,  Yasuyuki Inoue ,  Hiroshi Takahashi ,  Kuninori Hattori ,  Toshikazu Hashimoto ,  Yohei Sakamaki

发明人： Yusuke Nasu ,  Manabu Oguma ,  Yasuaki Hashizume ,  Yasuyuki Inoue ,  Hiroshi Takahashi ,  Kuninori Hattori ,  Toshikazu Hashimoto ,  Yohei Sakamaki

IPC分类号： G02B6/27 ,  G02B6/26

CPC分类号： G02B6/12007 ,  G02B6/1228 ,  G02B6/126 ,  G02B2006/12116 ,  G02B2006/12159

摘要： In an optical interferometer, polarization dependence attributable to the optical path difference has conventionally been eliminated by inserting a half-wave plate at the center of the interferometer. However, light induced by polarization coupling produced in directional couplers used in the optical interferometer causes interference having different interference conditions from those of the normal light. Polarization rotators that effect any one of 90° rotation and −90° rotation of all states of polarization of incoming light are inserted in the optical interferometer, and thereby the interference conditions of light induced by polarization coupling are made the same as those of the normal light. Each of the polarization rotators is implemented by using two half-wave plates and by varying an angle of combination of these half-wave plates. Alternatively, each of the polarization rotators is implemented through a combination of one half-wave plate and a waveguide having birefringence properties.

摘要翻译： 在光干涉仪中，通过在干涉仪的中心插入半波片，传统上消除了归因于光程差的偏振度依赖性。 然而，由光干涉仪中使用的定向耦合器产生的偏振耦合引起的光引起与正常光的干扰条件不同的干扰。 将影响入射光的所有偏振态的90°旋转和-90°旋转中的任何一个的极化旋转体插入到光学干涉仪中，由此使由偏振耦合引起的光的干涉条件与正常的相同 光。 每个偏振旋转器通过使用两个半波片并通过改变这些半波片的组合角来实现。 或者，每个偏振旋转器通过一个半波片和具有双折射性质的波导的组合来实现。

公开(公告)号：US08588560B2

公开(公告)日：2013-11-19

申请号：US13378034

申请日：2010-07-09

申请人： Yohei Sakamaki ,  Takashi Goh ,  Toshikazu Hashimoto ,  Yusuke Nasu ,  Kuninori Hattori ,  Hiroshi Takahashi

发明人： Yohei Sakamaki ,  Takashi Goh ,  Toshikazu Hashimoto ,  Yusuke Nasu ,  Kuninori Hattori ,  Hiroshi Takahashi

IPC分类号： G02B6/12 ,  G02B6/26 ,  G02B6/42 ,  H04B10/00

CPC分类号： H04B10/611 ,  H04B10/60 ,  H04B10/613 ,  H04B10/614

摘要： An optical 90-degree hybrid circuit includes a first demultiplexing optical coupler having two or more first input ports and two or more first output ports, a second demultiplexing optical coupler having two or more second input ports and two or more second output ports, two first arm waveguides connected to the first output ports, two second arm waveguides connected to the second output ports, a 90-degree phase shift section installed in one of the four arm waveguides, a first optical coupler and a second optical coupler connected to the first arm waveguides and the second arm waveguides, a first optical waveguide for connecting an optical splitter and the first input ports, and a second optical waveguide for connecting the optical splitter and the second input ports, wherein an optical length of the first optical waveguide is different from that of the second optical waveguide.

摘要翻译： 光学90度混合电路包括具有两个或多个第一输入端口和两个或更多个第一输出端口的第一解复用光耦合器，具有两个或多个第二输入端口和两个或更多个第二输出端口的第二解复用光耦合器，两个第一输出端口 连接到第一输出端口的臂波导，连接到第二输出端口的两个第二臂波导，安装在四个臂波导之一中的90度相移部分，连接到第一臂的第一光耦合器和第二光耦合器 波导和第二臂波导，用于连接光分路器和第一输入端口的第一光波导和用于连接光分路器和第二输入端口的第二光波导，其中第一光波导的光学长度不同于 第二光波导的。

公开(公告)号：US20120093457A1

公开(公告)日：2012-04-19

申请号：US13378034

申请日：2010-07-09

申请人： Yohei Sakamaki ,  Takashi Goh ,  Toshikazu Hashimoto ,  Yusuke Nasu ,  Kuninori Hattori ,  Hiroshi Takahashi

发明人： Yohei Sakamaki ,  Takashi Goh ,  Toshikazu Hashimoto ,  Yusuke Nasu ,  Kuninori Hattori ,  Hiroshi Takahashi

IPC分类号： G02B6/12

CPC分类号： H04B10/611 ,  H04B10/60 ,  H04B10/613 ,  H04B10/614

摘要： An optical 90-degree hybrid circuit includes a first demultiplexing optical coupler having two or more first input ports and two or more first output ports, a second demultiplexing optical coupler having two or more second input ports and two or more second output ports, two first arm waveguides connected to the first output ports, two second arm waveguides connected to the second output ports, a 90-degree phase shift section installed in one of the four arm waveguides, a first optical coupler and a second optical coupler connected to the first arm waveguides and the second arm waveguides, a first optical waveguide for connecting an optical splitter and the first input ports, and a second optical waveguide for connecting the optical splitter and the second input ports, wherein an optical length of the first optical waveguide is different from that of the second optical waveguide.

摘要翻译： 光学90度混合电路包括具有两个或多个第一输入端口和两个或更多个第一输出端口的第一解复用光耦合器，具有两个或多个第二输入端口和两个或更多个第二输出端口的第二解复用光耦合器，两个第一输出端口 连接到第一输出端口的臂波导，连接到第二输出端口的两个第二臂波导，安装在四个臂波导之一中的90度相移部分，连接到第一臂的第一光耦合器和第二光耦合器 波导和第二臂波导，用于连接光分路器和第一输入端口的第一光波导和用于连接光分路器和第二输入端口的第二光波导，其中第一光波导的光学长度不同于 第二光波导的。

公开(公告)号：US08150219B2

公开(公告)日：2012-04-03

申请号：US12521867

申请日：2007-12-27

申请人： Yusuke Nasu ,  Manabu Oguma ,  Yasuaki Hashizume ,  Yasuyuki Inoue ,  Hiroshi Takahashi ,  Kuninori Hattori ,  Toshikazu Hashimoto ,  Yohei Sakamaki

发明人： Yusuke Nasu ,  Manabu Oguma ,  Yasuaki Hashizume ,  Yasuyuki Inoue ,  Hiroshi Takahashi ,  Kuninori Hattori ,  Toshikazu Hashimoto ,  Yohei Sakamaki

IPC分类号： G02B6/27 ,  G02B6/26

CPC分类号： G02B6/12007 ,  G02B6/1228 ,  G02B6/126 ,  G02B2006/12116 ,  G02B2006/12159

摘要： In an optical interferometer, polarization dependence attributable to the optical path difference has conventionally been eliminated by inserting a half-wave plate at the center of the interferometer. However, light induced by polarization coupling produced in directional couplers used in the optical interferometer causes interference having different interference conditions from those of the normal light. Polarization rotators that effect any one of 90° rotation and −90° rotation of all states of polarization of incoming light are inserted in the optical interferometer, and thereby the interference conditions of light induced by polarization coupling are made the same as those of the normal light. Each of the polarization rotators is implemented by using two half-wave plates and by varying an angle of combination of these half-wave plates. Alternatively, each of the polarization rotators is implemented through a combination of one half-wave plate and a waveguide having birefringence properties.

摘要翻译： 在光干涉仪中，通过在干涉仪的中心插入半波片，传统上消除了归因于光程差的偏振度依赖性。 然而，由光干涉仪中使用的定向耦合器产生的偏振耦合引起的光引起与正常光的干扰条件不同的干扰。 将影响入射光的所有偏振态的90°旋转和-90°旋转中的任何一个的极化旋转体插入到光学干涉仪中，由此使由偏振耦合引起的光的干涉条件与正常的相同 光。 每个偏振旋转器通过使用两个半波片并通过改变这些半波片的组合角来实现。 或者，每个偏振旋转器通过一个半波片和具有双折射性质的波导的组合来实现。

公开(公告)号：US20100119189A1

公开(公告)日：2010-05-13

申请号：US12528933

申请日：2009-01-09

申请人： Yusuke Nasu ,  Kuninori Hattori ,  Toshikazu Hashimoto ,  Yohei Sakamaki ,  Hiroshi Takahashi ,  Yasuyuki Inoue

发明人： Yusuke Nasu ,  Kuninori Hattori ,  Toshikazu Hashimoto ,  Yohei Sakamaki ,  Hiroshi Takahashi ,  Yasuyuki Inoue

IPC分类号： G02F1/225 ,  G02B6/00

CPC分类号： H04B10/676 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12028 ,  G02B6/126 ,  G02B6/29355 ,  G02B6/29397 ,  G02B2006/12116 ,  G02B2006/12147 ,  G02B2006/1215

摘要： A demodulator is provided for a multilevel differential phase shift keyed signal, capable of eliminating polarization dependence due to birefringence and polarization coupling-induced light resulting from a waveguide structure, and also, polarization dependence due to dynamic birefringence produced at the time of driving a variable phase adjuster. The demodulator is configured of an optical delay line interferometer of a waveguide interference type. The S/N ratio of a demodulated signal in the demodulator formed by the optical delay line interferometer can be also improved. Further, both the polarization dependence and the temperature dependence of the optical delay line interferometer can be reduced. The disposition of a polarization converter and groves filled with a temperature compensation material makes it possible to provide a circuit configuration suitable for eliminating the polarization dependence and the temperature dependence of the optical delay line interferometer.

摘要翻译： 提供了一种用于多电平差分相移键控信号的解调器，其能够消除由于波导结构产生的双折射和偏振耦合引起的光的偏振依赖性，以及由驱动变量时产生的动态双折射引起的偏振相关性 相位调节器。 解调器由波导干涉型光延迟线干涉仪构成。 由光延迟线干涉仪形成的解调器中的解调信号的S / N比也可以提高。 此外，可以减少光学延迟线干涉仪的偏振相关性和温度依赖性。 充满温度补偿材料的偏振转换器和园林的布置使得可以提供适于消除光学延迟线干涉仪的偏振依赖性和温度依赖性的电路配置。

公开(公告)号：US06973237B2

公开(公告)日：2005-12-06

申请号：US10482590

申请日：2002-05-29

申请人： Shinji Yamashita ,  Yusuke Nasu

发明人： Shinji Yamashita ,  Yusuke Nasu

IPC分类号： G02B5/18 ,  G02B6/02 ,  G02B6/34

CPC分类号： G02B6/02138 ,  G02B6/02085 ,  G02B6/02114 ,  G02B6/02152

摘要： A super structure fiber Bragg grating is produced without being limited by a phase mask length. First, a beam is allowed to scan with the relative position between a mask and an optical fiber fixed (step 1). Subsequently, the relative position between the mask and the optical fiber is moved in the lengthwise direction of the optical fiber (step 2). Besides, the beam is allowed to scan with the relative position between the mask and the optical fiber fixed as at the step 1. Next, in order to correct and match a phase deviation, the mask is removed, and a uniform ultraviolet beam is applied to the optical fiber, whereby a refractive index can be uniformly changed, and the optical length of the corresponding portion is changed to impart a phase shift (step 3). The phase shift-imparting position may be the place between both the fixed positions or any other suitable place. A phase shift amount is determined by an ultraviolet beam irradiation time (or light pulse number), and if a necessary phase shift amount has been attained is determined while a reflection spectrum is being observed. The SSFBG of free length can be fabricated by repeating the above steps.

摘要翻译： 制造超结构光纤布喇格光栅，而不受相位掩模长度的限制。 首先，允许光束与掩模和固定的光纤之间的相对位置进行扫描（步骤1）。 随后，掩模和光纤之间的相对位置在光纤的长度方向上移动（步骤2）。 此外，如在步骤1中，光束被固定的掩模和光纤之间的相对位置扫描。接下来，为了校正和匹配相位偏移，去除掩模，并施加均匀的紫外线 由此可以均匀地改变折射率，并且改变对应部分的光学长度以赋予相移（步骤3）。 相移施加位置可以是两个固定位置或任何其它合适位置之间的位置。 通过紫外线照射时间（或光脉冲数）来确定相位偏移量，并且在观察到反射光谱的同时确定已经获得必要的相移量。 可以通过重复上述步骤来制造自由长度的SSFBG。