公开(公告)号：US08867873B2

公开(公告)日：2014-10-21

申请号：US13001347

申请日：2009-06-30

申请人： Shin Kamei ,  Yasuyuki Inoue ,  Mikitaka Itoh

发明人： Shin Kamei ,  Yasuyuki Inoue ,  Mikitaka Itoh

IPC分类号： G02B6/28 ,  G02B6/12

CPC分类号： G02B6/12026 ,  G02B6/12014 ,  G02B6/12016 ,  G02B6/12019 ,  G02B6/12028 ,  G02B6/1203

摘要： An optical wavelength multi/demultiplexing circuit is provided in which temperature dependence at a transmission center wavelength remained in an athermalized AWG is compensated. An AWG according to an embodiment of the present invention is compensated for the main temperature dependence at the transmission center wavelength. The AWG comprises an optical splitter, a first and second arm waveguides, an optical mode combining coupler and a multimode waveguide between an input/output waveguide and a slab waveguide. The optical mode combining coupler couples fundamental mode light from the first arm waveguide as fundamental mode and the fundamental mode light from the second arm waveguide as first mode. The multimode waveguide is capable of propagating the fundamental and first mode light. This AWG is configured such that the temperature dependence remained in the arrayed waveguide grating is compensated by changing the optical path length difference between the first and second arm waveguides with temperature.

摘要翻译： 提供了一种光波长多路解多路复用电路，其中传输中心波长处的温度依赖性保持在非热化AWG中。 根据本发明的实施例的AWG被补偿在传输中心波长处的主要温度依赖性。 AWG包括光分路器，第一和第二臂波导，光学模式组合耦合器和输入/输出波导和平板波导之间的多模波导。 光学模式组合耦合器将来自第一臂波导的基本模式光耦合作为基本模式，并将来自第二臂波导的基模光耦合为第一模式。 多模波导能够传播基本和第一模式光。 该AWG被配置为使得通过改变第一和第二臂波导之间的光程长度差随温度来补偿保持在阵列波导光栅中的温度依赖性。

公开(公告)号：US08787710B2

公开(公告)日：2014-07-22

申请号：US13321780

申请日：2010-06-02

申请人： Takayuki Mizuno ,  Takashi Goh ,  Hiroshi Yamazaki ,  Shin Kamei ,  Tsutomu Kitoh

发明人： Takayuki Mizuno ,  Takashi Goh ,  Hiroshi Yamazaki ,  Shin Kamei ,  Tsutomu Kitoh

IPC分类号： G02B6/26

CPC分类号： G02B6/12007 ,  G02B6/12023

摘要： A interferometer type polarization beam combiner and splitter, which can combine or split polarized light over a wide band, is provided. The interferometer type polarization beam combiner and splitter includes: an optical splitter; an optical coupler; an optical path length difference imparting unit, which includes a plurality of optical waveguides arranged between the optical splitting unit and the optical coupling unit; one or two input/output ports connected to the optical splitter; and two input/output ports connected to the optical coupler. A half-integer of a wavelength of λc is set as a normalized phase difference, for the optical path length difference imparting unit, between two polarization states, and means for generating a difference in refractive index dispersion is provided between the optical waveguides of the optical path length difference imparting unit, so that the change rate of the transmittance with respect to wavelength is suppressed for the two polarization states.

摘要翻译： 提供了可以在宽带上组合或分离偏振光的干涉仪型偏振光束组合器和分离器。 干涉仪型偏振光束组合器和分离器包括：光分路器; 光耦合器; 光路长度差分赋予单元，其包括布置在光分离单元和光耦合单元之间的多个光波导; 连接到光分路器的一个或两个输入/输出端口; 和连接到光耦合器的两个输入/输出端口。 在光路长度差分赋予单元之间，将两个偏振态之间的波长λc的半整数设定为归一化相位差，并且在光学的光波导之间设置用于产生折射率色散差的装置 路径长度差分赋予单元，从而对于两个偏振态抑制透射率相对于波长的变化率。

公开(公告)号：US08369666B2

公开(公告)日：2013-02-05

申请号：US13054158

申请日：2009-06-30

申请人： Shin Kamei ,  Tsutomu Kitoh ,  Masaki Kohtoku ,  Tomohiro Shibata ,  Takuya Tanaka ,  Yasuyuki Inoue ,  Mikitaka Itoh

发明人： Shin Kamei ,  Tsutomu Kitoh ,  Masaki Kohtoku ,  Tomohiro Shibata ,  Takuya Tanaka ,  Yasuyuki Inoue ,  Mikitaka Itoh

IPC分类号： G02B6/34 ,  H04J14/02

CPC分类号： G02B6/12028 ,  G02B6/12019 ,  G02B6/29352 ,  G02B6/29398

摘要： An optical wavelength multiplexing/de-multiplexing circuit having a low loss and a flat transmission spectrum is provided. The optical wavelength multiplexing/de-multiplexing circuit compensates a temperature dependence of a center transmission wavelength which remains in an athermal AWG, and has an excellent accuracy of the center transmission wavelength in a whole operating temperature range or has a comparatively wide operable temperature range. The temperature dependence of the transmission wavelength in the athermal MZI is modulated and set so as to cancel the temperature dependence of the center wavelength which remains in the athermal AWG. The present invention focuses particularly on an optical coupler in the MZI and modulates the temperature dependence of the transmission wavelength in the MZI by providing the optical coupler itself with a mechanism which changes a phase difference between two outputs by temperature.

摘要翻译： 提供具有低损耗和平坦透射光谱的光波长多路复用/解复用电路。 光波长复用/解复用电路补偿保持在无热AWG中的中心透射波长的温度依赖性，并且在整个工作温度范围内具有优异的中心透射波长精度或具有相对较宽的可操作温度范围。 在无热MZI中的透射波长的温度依赖性被调制和设定，以抵消保持在无热AWG中的中心波长的温度依赖性。 本发明特别着重于MZI中的光耦合器，并且通过为光耦合器本身提供一种通过温度改变两个输出之间的相位差的机构来调制MZI中的透射波长的温度依赖性。

公开(公告)号：US20120170891A1

公开(公告)日：2012-07-05

申请号：US13395095

申请日：2010-08-25

申请人： Tsutomu Kitoh ,  Shin Kamei ,  Toshikazu Hashimoto ,  Yohei Sakamaki ,  Hiroshi Takahashi ,  Manabu Oguma

发明人： Tsutomu Kitoh ,  Shin Kamei ,  Toshikazu Hashimoto ,  Yohei Sakamaki ,  Hiroshi Takahashi ,  Manabu Oguma

IPC分类号： G02B6/34

CPC分类号： G02B6/29391 ,  G02B6/12009 ,  G02B6/12016 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/29355 ,  G02B6/2938 ,  G02B2006/12159

摘要： An optical wavelength multi/demultiplexer having transmission characteristics with a higher rectangular degree than a conventional one includes an AWG and two-stage lattice circuit. An example of a two-stage lattice circuit according to the present invention includes an input waveguide, a third optical coupler, a third and fourth arm waveguides, a second optical coupler, a first and second arm waveguides, a first optical coupler, and output waveguides. The optical path length differences between the third and fourth arm waveguides and between the first and second arm waveguides are designed to be ΔL. The path passing the third and first arm waveguides differs by 2·ΔL in optical length from that the fourth and second arm waveguides. The paths passing the third and second arm waveguides and passing the fourth and first arm waveguides differ by ΔL from that passing the fourth and second arm waveguides.

摘要翻译： 具有传统特性的具有比常规方式更高的矩形度的光波长多路复用器包括AWG和两级晶格电路。 根据本发明的两级晶格电路的示例包括输入波导，第三光耦合器，第三和第四臂波导，第二光耦合器，第一和第二臂波导，第一光耦合器和输出 波导。 第三和第四臂波导之间以及第一和第二臂波导之间的光程长度差被设计为＆D; L。 通过第三和第一臂波导的路径与第四和第二臂波导的光学长度不同，为2·＆Dgr; L。 通过第三和第二臂波导并使第四和第一臂波导通过的路径与通过第四和第二臂波导的路径不同。

公开(公告)号：US07245793B2

公开(公告)日：2007-07-17

申请号：US10715146

申请日：2003-11-17

申请人： Shin Kamei ,  Yasuyuki Inoue ,  Takuya Tanaka ,  Toshikazu Hashimoto

发明人： Shin Kamei ,  Yasuyuki Inoue ,  Takuya Tanaka ,  Toshikazu Hashimoto

IPC分类号： G02B6/12 ,  G02B6/36

CPC分类号： G02B6/12011 ,  G02B6/12014 ,  G02B6/12016 ,  G02B6/12023 ,  G02B6/12028 ,  G02B6/122 ,  G02B6/125 ,  G02B2006/12107 ,  G02B2006/12145 ,  G02B2006/12195

摘要： An optical waveguide circuit includes a first loss component for causing a diffraction loss of light propagating through an optical waveguide, and a second loss component provided at least one of before and after the first loss component, for causing a diffraction loss less than the diffraction loss in the first loss component to the light propagating through the optical waveguide. This enables the beam spot size of the lightwave launched into the first loss component to be magnified seemingly, and to reduce the radiation angle of the lightwave at the first loss component, thereby making it possible to reduce the excess loss involved in the propagation of the light through the optical waveguide.

摘要翻译： 一种光波导电路包括：第一损耗分量，用于使通过光波导传播的光的衍射损耗和第二损耗分量提供在第一损耗分量之前和之后的至少之一，用于使衍射损耗小于衍射损耗 在通过光波导传播的光的第一损耗分量中。 这使得发射到第一损耗分量中的光波的光束尺寸看起来被放大，并且为了减小第一损耗分量处的光波的辐射角，从而可以减少在 通过光波导的光。

公开(公告)号：US06885447B2

公开(公告)日：2005-04-26

申请号：US10653252

申请日：2003-09-03

申请人： Yasuyuki Suzuki ,  Yoshihiro Sanpei ,  Makoto Komiyama ,  Kenji Ogino ,  Raiju Okada ,  Shuuhei Okada ,  Shin Kamei

发明人： Yasuyuki Suzuki ,  Yoshihiro Sanpei ,  Makoto Komiyama ,  Kenji Ogino ,  Raiju Okada ,  Shuuhei Okada ,  Shin Kamei

IPC分类号： G01J3/12 ,  G01J3/28

CPC分类号： G01J3/12 ,  G01J3/2803

摘要： The present invention relates to a spectrometer whereby the accuracy of wavelength measurement can be improved without being affected by the environment of use. The present invention is characterized by improvements made to a spectrometer for spectrally dividing the light under measurement by transmitting the components thereof at different, wavelength-by-wavelength angles, and receiving and detecting the light under measurement thus spectrally divided by the chromatic dispersion device using an optical detector. The apparatus according to the present invention comprises a refractive index compensation means for compensating changes in the angle at which the chromatic dispersion device transmits the light under measurement, according to changes in the refractive index of the medium in which the chromatic dispersion device is placed.

摘要翻译： 本发明涉及一种能够提高波长测量精度而不受使用环境的影响的光谱仪。 本发明的特征在于对光谱仪进行的改进，用于通过以不同的波长一个波长的角度透射其分量来光谱分割测量的光，并且接收和检测由色散装置上光谱分割的光，使用 光学检测器。 根据本发明的装置包括折射率补偿装置，用于根据其中放置色散装置的介质的折射率的变化来补偿色散装置透射测量光的角度的变化。

公开(公告)号：US08737779B2

公开(公告)日：2014-05-27

申请号：US13395095

申请日：2010-08-25

申请人： Tsutomu Kitoh ,  Shin Kamei ,  Toshikazu Hashimoto ,  Yohei Sakamaki ,  Hiroshi Takahashi ,  Manabu Oguma

发明人： Tsutomu Kitoh ,  Shin Kamei ,  Toshikazu Hashimoto ,  Yohei Sakamaki ,  Hiroshi Takahashi ,  Manabu Oguma

IPC分类号： G02B6/34 ,  G02B6/293 ,  G02B6/12 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/29391 ,  G02B6/12009 ,  G02B6/12016 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/29355 ,  G02B6/2938 ,  G02B2006/12159

摘要： An optical wavelength multi/demultiplexer having transmission characteristics with a higher rectangular degree than a conventional one includes an AWG and two-stage lattice circuit. An example of a two-stage lattice circuit according to the present invention includes an input waveguide, a third optical coupler, a third and fourth arm waveguides, a second optical coupler, a first and second arm waveguides, a first optical coupler, and output waveguides. The optical path length differences between the third and fourth arm waveguides and between the first and second arm waveguides are designed to be ΔL. The path passing the third and first arm waveguides differs by 2·ΔL in optical length from that the fourth and second arm waveguides. The paths passing the third and second arm waveguides and passing the fourth and first arm waveguides differ by ΔL from that passing the fourth and second arm waveguides.

摘要翻译： 具有传统特性的具有比常规方式更高的矩形度的光波长多路复用器包括AWG和两级晶格电路。 根据本发明的两级晶格电路的示例包括输入波导，第三光耦合器，第三和第四臂波导，第二光耦合器，第一和第二臂波导，第一光耦合器和输出 波导。 第三和第四臂波导之间以及第一和第二臂波导之间的光程长度差被设计为＆D; L。 通过第三和第一臂波导的路径与第四和第二臂波导的光学长度不同，为2·＆Dgr; L。 通过第三和第二臂波导并使第四和第一臂波导通过的路径与通过第四和第二臂波导的路径不同。

公开(公告)号：US08467642B2

公开(公告)日：2013-06-18

申请号：US12918406

申请日：2009-02-19

申请人： Daisuke Ogawa ,  Takashi Saida ,  Yuji Moriya ,  Shigeo Nagashima ,  Yasuyuki Inoue ,  Shin Kamei

发明人： Daisuke Ogawa ,  Takashi Saida ,  Yuji Moriya ,  Shigeo Nagashima ,  Yasuyuki Inoue ,  Shin Kamei

IPC分类号： G02B6/26 ,  G02B6/42 ,  G02B6/34

CPC分类号： G02B6/12026 ,  G02B6/12011 ,  G02B6/12014 ,  G02B6/12023

摘要： An arrayed waveguide grating optical multiplexer/demultiplexer according to the present invention including an input channel waveguide, an input slab waveguide, an arrayed waveguide, a polarization dependence eliminating means, an output slab waveguide, a temperature compensating means, and an output channel waveguide is characterized in that the temperature compensating means compensates for the temperature dependence of the optical path lengths in the channel waveguides of the arrayed waveguide, and the polarization dependence eliminating means eliminates the temperature dependence and the polarization dependence of the arrayed waveguide grating optical multiplexer/demultiplexer at the same time.

摘要翻译： 根据本发明的阵列波导光栅光复用器/解复用器包括输入通道波导，输入平板波导，阵列波导，偏振相关性消除装置，输出平板波导，温度补偿装置和输出通道波导 其特征在于，温度补偿装置补偿阵列波导的通道波导中光路长度的温度依赖性，并且偏振相关性消除装置消除阵列波导光栅光复用器/解复用器的温度依赖性和偏振度依赖性 同一时间。

公开(公告)号：US20120063716A1

公开(公告)日：2012-03-15

申请号：US13321780

申请日：2010-06-02

申请人： Takayuki Mizuno ,  Takashi Goh ,  Hiroshi Yamazaki ,  Shin Kamei ,  Tsutomu Kitoh

发明人： Takayuki Mizuno ,  Takashi Goh ,  Hiroshi Yamazaki ,  Shin Kamei ,  Tsutomu Kitoh

IPC分类号： G02B6/24

CPC分类号： G02B6/12007 ,  G02B6/12023

摘要： A interferometer type polarization beam combiner and splitter, which can combine or split polarized light over a wide band, is provided. The interferometer type polarization beam combiner and splitter includes: an optical splitter; an optical coupler; an optical path length difference imparting unit, which includes a plurality of optical waveguides arranged between the optical splitting unit and the optical coupling unit; one or two input/output ports connected to the optical splitter; and two input/output ports connected to the optical coupler. A half-integer of a wavelength of λc is set as a normalized phase difference, for the optical path length difference imparting unit, between two polarization states, and means for generating a difference in refractive index dispersion is provided between the optical waveguides of the optical path length difference imparting unit, so that the change rate of the transmittance with respect to wavelength is suppressed for the two polarization states.

摘要翻译： 提供了可以在宽带上组合或分离偏振光的干涉仪型偏振光束组合器和分离器。 干涉仪型偏振光束组合器和分离器包括：光分路器; 光耦合器; 光路长度差分赋予单元，其包括布置在光分离单元和光耦合单元之间的多个光波导; 连接到光分路器的一个或两个输入/输出端口; 和连接到光耦合器的两个输入/输出端口。 在光路长度差分赋予单元之间，将两个偏振态之间的波长λc的半整数设定为归一化相位差，并且在光学的光波导之间设置用于产生折射率色散差的装置 路径长度差分赋予单元，从而对于两个偏振态抑制透射率相对于波长的变化率。

公开(公告)号：US20110110624A1

公开(公告)日：2011-05-12

申请号：US13001347

申请日：2009-06-30

申请人： Shin Kamei ,  Yasuyuki Inoue ,  Mikitaka Itoh

发明人： Shin Kamei ,  Yasuyuki Inoue ,  Mikitaka Itoh

IPC分类号： G02B6/28

CPC分类号： G02B6/12026 ,  G02B6/12014 ,  G02B6/12016 ,  G02B6/12019 ,  G02B6/12028 ,  G02B6/1203

摘要： An optical wavelength multi/demultiplexing circuit is provided in which temperature dependence at a transmission center wavelength remained in an athermalized AWG is compensated. An AWG according to an embodiment of the present invention is compensated for the main temperature dependence at the transmission center wavelength. The AWG comprises an optical splitter, a first and second arm waveguides, an optical mode combining coupler and a multimode waveguide between an input/output waveguide and a slab waveguide. The optical mode combining coupler couples fundamental mode light from the first arm waveguide as fundamental mode and the fundamental mode light from the second arm waveguide as first mode. The multimode waveguide is capable of propagating the fundamental and first mode light. This AWG is configured such that the temperature dependence remained in the arrayed waveguide grating is compensated by changing the optical path length difference between the first and second arm waveguides with temperature.

摘要翻译： 提供了一种光波长多路解多路复用电路，其中传输中心波长处的温度依赖性保持在非热化AWG中。 根据本发明的实施例的AWG被补偿在传输中心波长处的主要温度依赖性。 AWG包括光分路器，第一和第二臂波导，光学模式组合耦合器和输入/输出波导和平板波导之间的多模波导。 光学模式组合耦合器将来自第一臂波导的基本模式光耦合作为基本模式，并将来自第二臂波导的基模光耦合为第一模式。 多模波导能够传播基本和第一模式光。 该AWG被配置为使得通过改变第一和第二臂波导之间的光程长度差随温度来补偿保持在阵列波导光栅中的温度依赖性。