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1. 发明公开

EP2180361A1 POLARIZED WAVE-INDEPENDENT WAVEGUIDE TYPE OPTICAL INTERFEROMETRIC CIRCUIT 有权
标题翻译：偏见UNABHÄNGIGEINTERFERROMETERSCHALTUNG VOM OPTISCHEN WELLENLEITERTYP
公开(公告)号：EP2180361A1
公开(公告)日：2010-04-28
申请号：EP07806072.0
申请日：2007-08-24
申请人： Nippon Telegraph and Telephone Corporation
发明人： HASHIZUME, Yasuaki , OGUMA, Manabu , SAIDA, Takashi , KOTOKU, Masaki , MIZUNO, Takayuki
IPC分类号： G02B6/12
CPC分类号： G02B6/12007 , G02B6/272 , G02B6/2766 , G02B6/29302 , G02B6/29352 , G02B2006/12038
摘要： A polarization-independent waveguide-type interference circuit provided in accordance with an embodiment of the invention is a Mach-Zehnder interferometer circuit (700) provided with two couplers (722, 724) and two arm waveguides (706, 708) connecting the couplers with each other, each fabricated on a substrate, in which a polarization rotation device (732) is disposed in a groove dividing each of the two arm waveguides into two, the polarization rotation device (732) for converting horizontally polarized light into vertically polarized light and converting vertically polarized light into horizontally polarized light, and birefringence is adjusted by performing laser irradiation or the like partially into at least one of the two arm waveguides such that a difference between birefringence values divided by an optical wavelength to be used is within a range of 2m - 0.2 to 2m + 0.2 (m is an integer including zero), the birefringence values being those integrated linearly along the respective two arm waveguides in an optical signal travelling direction.
摘要翻译：根据本发明实施例提供的偏振独立波导型干涉电路是具有两个耦合器（722,724）和两个臂波导（706,708）的马赫曾德尔干涉仪电路（700），其连接耦合器与彼此分别制造在基板上，其中偏振旋转装置（732）设置在将两个臂波导中的每一个分成两个的凹槽中，用于将水平偏振光转换成垂直偏振光的偏振旋转装置（732）和将垂直偏振光转换成水平偏振光，并且通过将激光照射等部分地部分地进入至两个臂波导中的至少一个来调节双折射，使得双折射值除以待使用的光波长的差在以下范围内 2m-0.2〜2m + 0.2（m是包括零的整数），双折射值是沿着该方向线性地积分的那些在光信号行进方向上有两个臂波导。

2. 发明授权

EP1965236B1 ARRAYED WAVEGUIDE GRATING CIRCUIT 有权转让
公开(公告)号：EP1965236B1
公开(公告)日：2018-08-29
申请号：EP06843012.3
申请日：2006-12-21
申请人： Nippon Telegraph and Telephone Corporation , NTT ELECTRONICS CORPORATION
发明人： YAMADA, Tomoyuki , NAGANO, Mitsuru , ITO, Mikitaka , WATANABE, Toshio , MIZUNO, Takayuki , GOH, Takashi , KANEKO, Akimasa
IPC分类号： G02B6/12
CPC分类号： G02B6/12016 , G02B6/12014
摘要： Two AWG circuits are integrated while preventing degradation in quality of a multiplexing/demultiplexing function. An arrayed waveguide grating circuit includes: a first slab waveguide (52) connected to a first input waveguide (51a) and second output waveguides (55b); a second slab waveguide (54) connected to first output waveguides (55a) and a second input waveguide (51b); and an array waveguide (53) connecting the first slab waveguide (52) and the second slab waveguide (54), wherein the input waveguides (51a, 51b) are connected to the slab waveguides (52, 54) at an interval of 1.5x from the outermost second output waveguide out of the second output waveguides (55a, 55b) connected at an interval x depending on a wavelength.

3. 发明授权

EP2180361B1 POLARIZATION-INDEPENDENT WAVEGUIDE-TYPE OPTICAL INTERFERENCE CIRCUIT 有权
标题翻译：偏振无关INTER FERRO仪表电路光纤式的
公开(公告)号：EP2180361B1
公开(公告)日：2014-10-08
申请号：EP07806072.0
申请日：2007-08-24
申请人： Nippon Telegraph and Telephone Corporation
发明人： HASHIZUME, Yasuaki , OGUMA, Manabu , SAIDA, Takashi , KOTOKU, Masaki , MIZUNO, Takayuki
IPC分类号： G02B6/12
CPC分类号： G02B6/12007 , G02B6/272 , G02B6/2766 , G02B6/29302 , G02B6/29352 , G02B2006/12038

4. 发明公开

EP2669722A1 WAVEGUIDE-TYPE POLARIZATION BEAM SPLITTER 有权
标题翻译：极地食品麻省理工学院
公开(公告)号：EP2669722A1
公开(公告)日：2013-12-04
申请号：EP12739739.6
申请日：2012-01-25
申请人： Nippon Telegraph And Telephone Corporation
发明人： SAIDA, Takashi , NASU, Yusuke , MIZUNO, Takayuki , KASAHARA, Ryoichi
IPC分类号： G02B6/126
CPC分类号： G02B6/126 , G02B6/2793 , G02B6/2813 , G02B2006/12116 , G02B2006/1215
摘要： Provided is a waveguide-type polarization beam splitter in which deterioration of a polarization extinction ratio due to temperature change and wavelength change is suppressed. The waveguide-type polarization beam splitter includes: an input optical waveguides (11); a first optical coupler (12) coupled to the input optical waveguides (11); a pair of optical waveguide arms (13a, 13b) coupled to outputs of the first optical coupler; and a second optical coupler (18) coupled to the pair of optical waveguide arms (13a, 13b). A groove (15) is formed to extend across the pair of optical waveguide arms (13a, 13b) and two quarter wave plates (16a, 16b) are provided in the groove (15) to extend respectively across the arms (13a, 13b). Polarization axes of the quarter wave plates (16a, 16b) are orthogonal to each other. The first optical coupler (12) which gives a phase difference of 0° or 180° between coupled or split light beams and the second optical coupler (18) which gives a phase difference of 90° or -90° between coupled or split light beams are used in combination.
摘要翻译：提供了抑制由于温度变化和波长变化引起的偏振消光比的劣化的波导型偏振分束器。波导型偏振分束器包括：输入光波导（11）; 耦合到所述输入光波导（11）的第一光耦合器（12）; 耦合到所述第一光耦合器的输出的一对光波导臂（13a，13b）; 以及耦合到所述一对光波导臂（13a，13b）的第二光耦合器（18）。形成一个沟槽（15），跨越一对光波导臂（13a，13b）延伸，并且两个四分之一波片（16a，16b）设置在槽（15）中，分别延伸穿过臂（13a，13b）。四分之一波片（16a，16b）的极化轴彼此正交。第一光耦合器（12）在耦合或分离光束之间给出0°或180°的相位差，并且在耦合或分束光束之间给出90°或-90°的相位差的第二光耦合器（18）被组合使用。

5. 发明公开

EP2439566A1 BROADBAND INTERFEROMETER TYPE POLARIZED LIGHT COMBINER AND SPLITTER 有权
标题翻译：麻醉师麻醉师智能干扰仪
公开(公告)号：EP2439566A1
公开(公告)日：2012-04-11
申请号：EP10783151.3
申请日：2010-06-02
申请人： Nippon Telegraph And Telephone Corporation
发明人： MIZUNO, Takayuki , GOH, Takashi , YAMAZAKI, Hiroshi , KAMEI, Shin , KITOH, Tsutomu
IPC分类号： G02B6/126
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; 以及连接到光耦合器的两个输入/输出端口。对于光路长度差分赋予单元，将两个偏振态之间的波长的半整数设为归一化相位差，并且在两个偏振态之间设置用于产生折射率色散差的装置光路长度差分赋予单元，因此抑制两个偏振态的透射率相对于波长的变化率。

6. 发明授权

EP2669722B1 WAVEGUIDE-TYPE POLARIZATION BEAM SPLITTER 有权
标题翻译：有纤维偏振分束器
公开(公告)号：EP2669722B1
公开(公告)日：2015-01-14
申请号：EP12739739.6
申请日：2012-01-25
申请人： Nippon Telegraph And Telephone Corporation
发明人： SAIDA, Takashi , NASU, Yusuke , MIZUNO, Takayuki , KASAHARA, Ryoichi
IPC分类号： G02B6/126 , G02B6/27 , G02B6/28 , G02B6/12
CPC分类号： G02B6/126 , G02B6/2793 , G02B6/2813 , G02B2006/12116 , G02B2006/1215

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