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1. 发明专利

JP2012220924A N×n wavelength selection switch 有权
标题翻译： N×N波长选择开关
公开(公告)号：JP2012220924A
公开(公告)日：2012-11-12
申请号：JP2011090004
申请日：2011-04-14
申请人： National Institute Of Advanced Industrial & Technology , Hitachi Cable Ltd , Keio Gijuku , 学校法人慶應義塾 , 日立電線株式会社 , 独立行政法人産業技術総合研究所
发明人： ISHIKAWA HIROSHI , HAZAMA HISAFUMI , KAWASHIMA HITOSHI , KANETAKA KENJI , SHOJI YUYA , UETSUKA NAOTO , MORI MASAHIKO , HONGO AKIHITO , TSUDA HIROYUKI , SORIMOTO KEISUKE
IPC分类号： G02B26/08
摘要： PROBLEM TO BE SOLVED: To provide an N×N wavelength selection switch capable of simultaneously executing DEMUX operation and MUX operation of two or more light beams of the same wavelength by a simple unit.SOLUTION: An N×N wavelength selection switch 20 includes an input side waveguide type branch circuit 7a and an output side waveguide type branch circuit 7b of a port number N, is for, when multiwavelength light of a wavelength number M is inputted to one input port of the input side waveguide type branch circuit 7a, outputting the multiwavelength light from an optional output port of the output side waveguide type branch circuit 7b for each wavelength, and comprises spectroscopic means, an input side two-dimensional MEMS mirror 16a including mirrors that are arranged in N columns and arrayed in M rows and selectively reflect each single wavelength light in an optional direction, reflection means, an output side two-dimensional MEMS mirror 16b including mirrors that are arranged in N columns and arrayed in M rows and reflect each single wavelength light to a specific direction, and condensing means.
摘要翻译：要解决的问题：提供一种能够通过简单的单元同时执行相同波长的两个或更多个光束的DEMUX操作和MUX操作的N×N波长选择开关。解决方案：N×N波长选择开关20包括输入侧波导型分支电路7a和端口号N的输出侧波导型分支电路7b，当输入波长数M的多波长光时到输入侧波导型分支电路7a的一个输入端口，对于每个波长从输出侧波导型分支电路7b的可选输出端口输出多波长光，并且包括分光装置，输入侧二维MEMS反射镜16a 包括以N列排列并排列成M行的反射镜，并且以可选方向选择性地反射每个单一波长的光，反射装置，包括布置在N列并排列成M行的反射镜的输出侧二维MEMS反射镜16b 并将每个单一波长的光反射到特定的方向，并且会聚装置。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2011154210A Wavelength domain optical switch 有权
标题翻译：波长域光开关
公开(公告)号：JP2011154210A
公开(公告)日：2011-08-11
申请号：JP2010015929
申请日：2010-01-27
申请人： Hitachi Cable Ltd , Keio Gijuku , National Institute Of Advanced Industrial Science & Technology , 学校法人慶應義塾 , 日立電線株式会社 , 独立行政法人産業技術総合研究所
发明人： ISHIKAWA HIROSHI , HAZAMA HISAFUMI , KAWASHIMA HITOSHI , MORI MASAHIKO , KANETAKA KENJI , UETSUKA NAOTO , TSUDA HIROYUKI , SORIMOTO KEISUKE
IPC分类号： G02F1/31 , G02F1/061
CPC分类号： G02B6/2773 , G02B6/12021 , G02B6/3594 , G02F1/313
摘要： PROBLEM TO BE SOLVED: To provide a waveguide type wavelength domain optical switch for correcting wavelength shift of split waves of a plurality of waveguide type demultiplexing circuits using inexpensive lenses.
SOLUTION: The wavelength domain optical switch includes: an integrated element 110 in which three or more of waveguide type demultiplexing circuits 114 are stacked; a first lens 130 for focusing light emitted from the integrated element 110; a polarization separation element 140 for separating a light beam from the first lens 130 into X polarization and Y polarization and emitting them at different angles; a second lens 150 for focusing the X polarization and the Y polarization; a first reflective optical phase modulator 160 for reflecting the focused X polarization and Y polarization at any angles; a half wavelength plate 170 for matching the polarization directions of the X polarization and the Y polarization between the second lens 150 and the first reflective optical phase modulator; a second reflective optical phase modulator 180 for leading the light from the first reflective optical phase modulator 160 to one of the waveguide type demultiplexing circuits 114.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用廉价透镜来校正多个波导型解复用电路的分波波长偏移的波导型波长域光开关。解决方案：波长域光开关包括：集成元件110，其中堆叠三个或更多个波导型解复用电路114; 用于聚焦从集成元件110发射的光的第一透镜130; 用于将来自第一透镜130的光束分离成X偏振和Y偏振并以不同角度发射的偏振分离元件140; 用于聚焦X偏振和Y偏振的第二透镜150; 用于以任何角度反射聚焦的X偏振和Y偏振的第一反射光学相位调制器160; 半波长板170，用于匹配第二透镜150和第一反射光学相位调制器之间的X偏振和Y偏振的偏振方向; 第二反射光学相位调制器180，用于将来自第一反射光学相位调制器160的光引导到波导型解复用电路114之一。版权所有：（C）2011，JPO＆INPIT

3. 发明专利

JP2004325865A Manufacturing method of star coupler, optical wavelength multiplexer/demultiplexer and optical device 有权
公开(公告)号：JP2004325865A
公开(公告)日：2004-11-18
申请号：JP2003121545
申请日：2003-04-25
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： MARU KOICHI , KASHIMURA SEIICHI , MATSUI KENSUKE , UETSUKA NAOTO
IPC分类号： G02B6/12 , G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a star coupler in which transition loss is remarkably reduced, an optical wavelength multiplexer/demultiplexer and an optical device. SOLUTION: In an input side slab waveguide, an input channel waveguide is connected to an input side and an array waveguide diffraction grating, which is constituted of a plurality of array waveguides, is connected to an output side. A clad section forming region 20A is formed to the input side slab waveguide. A plurality of clad sections 21 (21a to 21i are equivalent to one row along a light beam progressing direction), which is made of a core 8 and a clad layer 9, is provided. The clad sections 21 are arranged at the vicinity of the array waveguide diffraction grating and on the extended line of the regions between input ends of the array waveguides and a core height h is gradually made lower as it moves toward a connection section 23. A clad column is constituted of a plurality of the clad sections 21 and a plurality of clad columns is formed in a concentric circular manner. By providing the clad sections 21, transition loss is reduced. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2003075662A Light wavelength multiplexer/demultiplexer 审中-公开
标题翻译：光波长多路复用器/解复用器
公开(公告)号：JP2003075662A
公开(公告)日：2003-03-12
申请号：JP2001262105
申请日：2001-08-30
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： MARU KOICHI , OKAWA MASAHIRO , UETSUKA NAOTO
IPC分类号： G02B6/12 , G02B6/293
摘要： PROBLEM TO BE SOLVED: To provide a light wavelength multiplexer/demultiplexer with which the radiation loss of light in a waveguide is decreased, thus the variation in the demultiplexed wavelength outputted from the light wavelength multiplexer/ demultiplexer is sufficiently suppressed. SOLUTION: The light wavelength multiplexer/demultiplexer is composed of waveguides 2, 3 and 5 formed on a substrate 7, which demultiplex an incident light wave, shift the phases of the respective demultiplexed light waves and multiplex the respective light waves which are shifted in the phases. Three or more rectangular grooves 8a3 through 8e3 which transverse the waveguide 3 are independently formed on any part of the waveguide 3, the respective formed grooves are filled with an optical resin, further the width of the grooves 8a3 and 8e3 on both ends among the respective grooves 8a3 through 8e3 has a dimension of a half of the other grooves 8b3 through 8d3.
摘要翻译：要解决的问题：为了提供一种光波长多路复用器/解复用器，其中波导中的光的辐射损失减小，从而可以充分抑制从光波长多路复用器/解复用器输出的解复用波长的变化。解决方案：光波长多路复用器/解复用器由形成在基板7上的波导2,3和5组成，其对入射光波进行解复用，使相应的解复用光波相位移位，并将在阶段在波纹管3的任意部分独立地形成有三个以上横向于波导3的矩形槽8a3〜8e3，各个形成的槽被光学树脂填充，另外，两侧的槽8a3,8e3的宽度分别为槽8a3至8e3具有其他槽8b3至8d3的一半的尺寸。

5. 发明专利

JP2003043291A Optical coupler 有权
标题翻译：光耦合器
公开(公告)号：JP2003043291A
公开(公告)日：2003-02-13
申请号：JP2001236541
申请日：2001-08-03
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： UETSUKA NAOTO , ARAI HIDEAKI , CHIBA TAKASHI
IPC分类号： G02B6/28 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide an optical coupler having small connection loss. SOLUTION: Optical confinement can be intensified for each propagation mode of light propagating from outside through an input waveguide 22 to a multi waveguide part 21, by forming a high refractive index part 26-29 where a refractive index of the core is locally high near the connection part of the multi waveguide part 21 with the input/output waveguides 22-25 of the part 21. With the optical confinement intensified, the propagation constant becomes small in wavelength dependency, the connection loss is reduced, and the waveguide characteristics are greatly improved. As a result, an optical coupler with a small connection loss can be obtained. Similar effect can also be obtained by forming projections 41-44 in which the height of the core is locally high near the connection part of the multi waveguide part 21 with the input/output waveguides 22-25.
摘要翻译：要解决的问题：提供一种具有小的连接损耗的光耦合器。解决方案：通过形成高折射率部分26-29，其中芯的折射率局部地高于附近的高折射率部分26-29，可以增强从外部通过输入波导22传播到多波导部分21的光的每种传播模式的光限制多波导部分21的连接部分与部分21的输入/输出波导22-25相连。当光限制增强时，传播常数波长依赖性变小，连接损耗减小，波导特性大大提高。结果，可以获得具有小的连接损耗的光耦合器。通过在多波导部分21的连接部分附近与输入/输出波导22-25形成其中芯的高度局部高度的突起41-44也可以获得类似的效果。

6. 发明专利

JP2003021814A Optical delay multiple circuit 审中-公开
标题翻译：光延迟多路电路
公开(公告)号：JP2003021814A
公开(公告)日：2003-01-24
申请号：JP2001208300
申请日：2001-07-09
申请人： Communication Research Laboratory , Hitachi Cable Ltd , 日立電線株式会社 , 独立行政法人通信総合研究所
发明人： NAKAJO WATARU , SOTOBAYASHI HIDEYUKI , TAMURA TSUNASATO , OKAWA MASAHIRO , UETSUKA NAOTO
IPC分类号： G02B6/12 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide an optical delay multiple circuit of less noise. SOLUTION: MMI(multimode interference) couplers 12 and 13 having wide gaps in waveguide branch parts are used to form an optical delay multiple circuit 10 so that a plasma CVD method which is a process at a lower temperature than a flame deposition method can be used. As a result, deformation of cores of waveguides and bends of element are reduced, and the manufacturing error is reduced, and low frequency components are reduced to reduce the noise.
摘要翻译：要解决的问题：提供噪声较小的光延迟多电路。解决方案：使用在波导分支部分中具有宽间隙的MMI（多模干涉）耦合器12和13来形成光延迟多电路10，从而可以使用作为比火焰沉积方法更低温度的工艺的等离子体CVD方法。结果，波导的芯部和元件的弯曲部的变形减小，并且制造误差降低，并且降低了低频分量以降低噪声。

7. 发明专利

JP2002185076A HYBRID DBR LASER AND ITS ARRAY 失效
公开(公告)号：JP2002185076A
公开(公告)日：2002-06-28
申请号：JP2000382495
申请日：2000-12-15
申请人： HITACHI CABLE
发明人： UETSUKA NAOTO , ARAI HIDEAKI
IPC分类号： G02B6/122 , H01S5/14 , H01S5/40
摘要： PROBLEM TO BE SOLVED: To provide a hybrid DBR laser which is constituted to prevent its oscillation wavelength from being affected by the temperature characteristic of the reflection wavelength of a grating and, at the same time, from hopping even when the ambient temperature of the laser changes, and to provide its array. SOLUTION: The hybrid DBR laser is constituted by forming the grating 3 in desired pitch on part of a channel waveguide 2 formed on a silicon substrate 1 and optically coupling a semiconductor optical amplifier 5 with one end of the grating 3. In the laser, part 21 of the waveguide 2 is formed narrower than the other part 22 of the waveguide 2, and the grating 3 is formed on the narrowed part 21.

8. 发明专利

JP2001249237A OPTICAL MULTIPLEXER/DEMULTIPLEXER 失效
公开(公告)号：JP2001249237A
公开(公告)日：2001-09-14
申请号：JP2000063302
申请日：2000-03-03
申请人： HITACHI CABLE
发明人： ARAI HIDEAKI , CHIBA TAKASHI , UETSUKA NAOTO
IPC分类号： G02B6/12 , G02B6/28 , G02B6/293 , G02B6/34
摘要： PROBLEM TO BE SOLVED: To provide an optical multiplexer/demultiplexer small in wavelength dependency, capable of being used in a wide wavelength zone, being hardly affected by a manufacturing error, furthermore excellent in wavelength flatness in a passing zone and having a wide blocking zone. SOLUTION: The optical multiplexer/demultiplexer is constituted so as to restrain as much as possible the influence by the wavelength dependency and characteristics sensitive in the manufacturing error of a directional coupler. Concretely, an MMI type coupler of nearly 50% coupling rate is used in a first coupler 6 and a second coupler 7, and the directional coupler of below 10% coupling rate is used in a third coupler 8 and a fourth coupler 9.

9. 发明专利

JP2001141944A OPTICAL WAVELENGTH MULTIPLEXER AND DEMULTIPLEXER 失效
公开(公告)号：JP2001141944A
公开(公告)日：2001-05-25
申请号：JP32124699
申请日：1999-11-11
申请人： HITACHI CABLE
发明人： OKAWA MASAHIRO , MARU KOICHI , UETSUKA NAOTO
IPC分类号： G02B6/12 , G02B6/293
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength multiplexer and demultiplexer having low crosstalk capable of being flattened in a wide band and setting a central wavelength with excellent precision. SOLUTION: Waveforms such as band widening are adjusted by providing a band adjusting waveguide element 11 between an input optical fiber 2 and an input side slab waveguide 10 and by optimizing the position and shape of the band adjusting waveguide element 11. Additional waveguides 7a, 13a are respectively arranged in the band adjusting waveguide element 11 and an output side waveguide 7, whereby even if some axial shifts are generated when these elements are fixed, the central wavelength is precisely set by combining the waveguides.

10. 发明专利

JP2001124950A METHOD FOR CONNECTING TEMPERATURE-INDEPENDENT QUARTZ BASE ARRAY GRATING TYPE OPTICAL WAVEGUIDE ELEMENT TO OPTICAL FIBER 失效
公开(公告)号：JP2001124950A
公开(公告)日：2001-05-11
申请号：JP30401499
申请日：1999-10-26
申请人： HITACHI CABLE
发明人： NAMISE HIDEKI , MARU KOICHI , TAKASUGI SATORU , UETSUKA NAOTO
IPC分类号： G02B6/30
摘要： PROBLEM TO BE SOLVED: To provide a method for connecting a temperature-independent quartz base array grating type optical waveguide element and an optical fiber to each other, by which the connecting position of the optical fiber is automatically controlled, even if the demultiplexing wavelength characteristics of signal inputted to the optical fiber are changed. SOLUTION: In this method for aligning and connecting an optical fiber 4 to the entrance side of the temperature-independent quartz base array grating type optical waveguide element 8, the optical fiber 4 for inputting the signal light having polarized wave components is tentatively held by a fine adjustable table 5 for moving the connecting position, corresponding to electric signals and the optical signal of a center wavelength is detected from output optical signals outputted from the optical waveguide element 8. An electrical signal based on the detected optical signal is fed back to the fine adjustable table 5, and the connecting position of the optical fiber 4 is decided, and the intensity of the optical signal of the center wavelength becomes maximum. Then, the optical fiber 4 and the temperature-independent quartz base array grating type optical waveguide element 8 are connected.

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