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1. 发明公开

EP1712938A3 Optical waveguide interferometer 审中-公开
标题翻译：对于干涉仪光波导
公开(公告)号：EP1712938A3
公开(公告)日：2006-11-15
申请号：EP06013932.6
申请日：2001-02-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION , NTT ELECTRONICS CORPORATION
发明人： Inoue, Yasuyuki , Hashizume, Yasuaki , Hibino, Yoshinori , Sugita, Akio , Hida, Yasuhiro , Takahashi, Hiroshi
IPC分类号： G02B6/126
CPC分类号： G02B6/12011 , G02B6/12023 , G02B6/126 , G02B2006/12159
摘要： A waveguide optical interferometer which is low in cost, has high reliability, and is independent of polarization, or has a specific polarization dependence. In an optical multiplexer / demultiplexer such as an AWG, or a Mach-Zehnder interferometer, which utilizes interference of a light beam passing through a plurality of optical waveguides of different lengths, all the integrals of the birefringence values of the optical waveguides (which may change or not change along the waveguides) in the longitudinal direction of the waveguides (1703 and 1704) are either made to be equal to each other, or their difference is set to a specific value. Thus, polarization-independent operation or, to the contrary, polarization-selective operation can be realized, only by changing the waveguide widths. For instance, in a Mach-Zehnder interferometer, the integrals of the birefringence values of two waveguides may differ from each other by half the optical wavelength used, thereby realizing a polarization beam splitter.

2. 发明公开

EP1712938A2 Optical waveguide interferometer 审中-公开
标题翻译：光波导干涉仪
公开(公告)号：EP1712938A2
公开(公告)日：2006-10-18
申请号：EP06013932.6
申请日：2001-02-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION , NTT ELECTRONICS CORPORATION
发明人： Inoue, Yasuyuki , Hashizume, Yasuaki , Hibino, Yoshinori , Sugita, Akio , Hida, Yasuhiro , Takahashi, Hiroshi
IPC分类号： G02B6/126
CPC分类号： G02B6/12011 , G02B6/12023 , G02B6/126 , G02B2006/12159
摘要： A low-cost, high-reliability polarization-independent optical waveguide interferometer is proposed which does not bring about any additional job involved in the insertion of a half-wave plate or excess loss of light. In an optical multi/demultiplexer utilizing optical interference of light waves passing through a plurality of optical waveguides with different lengths, such as an AWG and a Mach-Zehnder interferometer, longitudinal integral values of birefringence values of the individual waveguides, which values are variable or invariable along the waveguides, are made equal for all waveguides 201 and 202. Thus, simply varying the waveguide width can implement polarization-independent operation, or on the contrary implement a polarization beam splitter. For example, the polarization-independent can be implemented by making the core widths, which are averaged in a longitudinal direction of a plurality of optical waveguides with different lengths, wider in a shorter optical waveguide, and narrower in a longer optical waveguide.
摘要翻译：提出了一种低成本，高可靠性的与偏振无关的光波导干涉仪，该干涉仪不会带来插入半波片或额外光损耗的任何额外工作。在利用通过长度不同的多个光波导的光波的光干涉的光多路复用/多路分离器中，诸如AWG和Mach-Zehnder干涉仪，各个波导的双折射值的纵向积分值，这些值是可变的或对于所有波导201和202来说都是相等的。因此，简单地改变波导宽度可以实现偏振无关操作，或者相反地实现偏振分束器。例如，可以通过使长度不同的多个光波导的长度方向上的平均芯宽度在较短的光波导中较宽而在较长的光波导中较窄来实现偏振无关。

3. 发明公开

EP2653899A2 Waveguide type optical interference circuit 有权
标题翻译： Wellenleiterartige optische Interferenzschaltung
公开(公告)号：EP2653899A2
公开(公告)日：2013-10-23
申请号：EP13176271.8
申请日：2007-12-27
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Nasu, Yusuke , Oguma, Manabu , Hashizume, Yasuaki , Inoue, Yasuyuki , Takahashi, Hiroshi , Hattori, Kuninori , Hashimoto, Toshikazu , Sakamaki, Yohei
IPC分类号： G02B6/126 , G02B6/122
CPC分类号： G02B6/12007 , G02B6/1228 , G02B6/126 , G02B2006/12116 , G02B2006/12159
摘要： A waveguide-type optical interferometer includes at least one input waveguide (101, 102), an optical splitter (103) connected to the input waveguide (101, 102), at least one output waveguide, an optical combiner (106) connected to the output waveguide (104, 105), at least two arm waveguides (123a, 123b, 123c, 123d) that provide a connection between the optical splitter (103) and the optical combiner (106), and a half-wave plate (122) having an optic axis inclined at any one of 45° and -45° relative to optic axes of the at least two arm waveguides (123a, 123b, 123c, 123d). The waveguide-type optical interferometer further comprises phase difference providing waveguide portions (170) that provide a phase difference of 180° between polarizations crossing at right angles in the at least two arm waveguides (107, 108), at operating wavelengths used in the optical interferometer, the phase difference providing waveguide portions (170) being located either between the at least two arm waveguides (123a, 123b, 123c, 123d) and the optical splitter (103) or between the at least two arm waveguides (123a, 123b, 123c, 123d) and the optical combiner (106), wherein the half-wave plate (122) is located at a location corresponding to a midpoint of an optical path length of each of the at least two arm waveguides (123a, 123b, 123c, 123d).
摘要翻译：波导型光干涉仪包括至少一个输入波导（101,102），连接到输入波导（101,102）的光分路器（103），至少一个输出波导，连接到该波导输出波导（104,105），提供光分路器（103）和光组合器（106）之间的连接的至少两个臂波导（123a，123b，123c，123d）和半波片（122）具有相对于至少两个臂波导（123a，123b，123c，123d）的光轴倾斜45°和-45°的任一个的光轴。波导型光学干涉仪还包括相位差提供波导部分（170），其在至少两个臂波导（107,108）中以直角交叉的极化之间提供180°的相位差，在光学器件中使用的波长所述相位差提供波导部分（170）位于所述至少两个臂波导（123a，123b，123c，123d）和所述分光器（103）之间或所述至少两个臂波导（123a，123b， 123c，123d）和光组合器（106），其中半波片（122）位于对应于至少两个臂波导（123a，123b，123c）中的每一个的光路长度的中点的位置，123d）。

4. 发明公开

EP0591042A1 Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths 失效
标题翻译：多/多路分用器与晶格阵列波导和zurückgefürten光路。
公开(公告)号：EP0591042A1
公开(公告)日：1994-04-06
申请号：EP93402364.9
申请日：1993-09-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tachikawa, Yoshiaki , Kawachi, Masao , Takahashi, Hiroshi , Inoue, Kyo
IPC分类号： G02B6/34
CPC分类号： G02B6/12014 , G02B6/12016 , G02B6/12019 , G02B6/12021 , G02B6/278 , G02B6/2861 , G02B6/29361 , G02B6/2938 , G02B6/29395 , G02B6/4215 , H01S5/026 , H01S5/0268 , H01S5/1071 , H04B2210/258
摘要： An optical device is presented which is useful for optical signal transmission and switching systems by multiplexing and demultiplexing optical signals in looped optical paths, consisting of a plurality of individual loop-back optical paths. The device is essentially a multi/demultiplexer having an arrayed waveguide grating disposed between a plurality of input sections and output sections which are joined by the plurality of individual loop-back optical paths. Because the modulated signals are looped back into the same optical paths using the same devices, problems of mismatching performance introduced by using different optical devices are avoided. The device processes individual optical signals of different wavelengths, minimizes splitting losses, and reduces noise components by producing narrow bandpass signals of high signal to noise ratio. Optical signal splitting and insertion, delay line memory and delay equalization circuits can all be handled by the same circuit configuration. The device is simple in construction, reliable in performance and economical in production.
摘要翻译：一种光学器件呈现的所有其是用于光信号传输和通过多路复用交换系统和在环状光路解复用的光信号，由单独的环回光路的多个有用的。该装置是本质上具有对阵列波导输入节和输出部分的多个被个别环回光路的多个连接的之间光栅设置的多/多路分用器。因为调制信号被环回至使用相同的装置相同的光路，不匹配的性能问题，通过使用不同的光学器件避免引入。装置处理不同波长的单个光信号，最小化分裂的损失，并且通过产生高信号的窄带带通信噪比降低噪声分量。光学信号分离器和插入，延迟行存储器和延时均衡电路可以全部由相同的电路结构进行处理。该装置结构简单，性能可靠，经济的生产。

5. 发明公开

EP0316911A2 Cable closure 失效
标题翻译： Kabelumhüllung。
公开(公告)号：EP0316911A2
公开(公告)日：1989-05-24
申请号：EP88119136.5
申请日：1988-11-17
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Nimiya, Takayuki , Hinohara, Tsuneto , Yuhara, Kazuki , Kotani, Yuji , Hirata, Masato , Katsuse, Mitsuyoshi , Takahashi, Hiroshi , Kosugi, Kenji
IPC分类号： H02G15/013 , H02G15/007 , H02G15/10
CPC分类号： G02B6/4446 , H02G15/007 , H02G15/013 , H02G15/10 , Y10T29/49194
摘要： To reduce the number of parts, assembly work time and cost of a cable closure including a two-splittable cylindrical sleeve for covering the cable junction point, and a pair of two-dividable annular end plates fitted to both inner ends of the sleeve to close spaces between the cables and the sleeve, the end plates are formed by a rigid plastic material and gaps between the cable and the end plates are sealed by rubber airtight tape wound around the cable by adjusting the number of turns according to cable diameter. Further, two cable gripping means are fixed to the end plates, respectively to protect the junction point from external force applied between the two cables by the strength of the sleeve coupled to the end plates.
摘要翻译：为了减少部件的数量，组装工作时间和包括用于覆盖电缆连接点的两个可分开的圆柱形套筒的电缆闭合的成本，以及一对装配到套筒的两个内端以闭合的两个可分开的环形端板电缆和套筒之间的空间，端板由刚性塑料材料形成，并且电缆和端板之间的间隙通过根据电缆直径调节匝数由缠绕在电缆上的橡胶密封带密封。此外，两个电缆夹持装置分别固定到端板，以通过耦合到端板的套筒的强度来保护接合点免受施加在两根电缆之间的外力。

6. 发明授权

EP2506049B1 Planar lightwave circuit, including a slab type coupler 有权
公开(公告)号：EP2506049B1
公开(公告)日：2019-05-08
申请号：EP12173774.6
申请日：2005-08-01
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Saida, Takashi , Tamura, Munehisa , Sakamaki, Yohei , Hashimoto, Toshikazu , Kitoh, Tsutomu , Takahashi, Hiroshi , Yanagisawa, Masahiro , Suzuki, Senichi , Hida, Yasuhiro , Ishii, Motohaya
IPC分类号： G02B6/14 , G02B6/122 , G02B6/28 , G02B6/12

7. 发明公开

EP1271814A3 High precision chromatic dispersion measuring method and automatic dispersion compensating optical system that uses this method 有权
标题翻译：为使用这种方法的色散和色散补偿光学系统的高精度的测量的方法
公开(公告)号：EP1271814A3
公开(公告)日：2004-03-31
申请号：EP02291604.3
申请日：2002-06-27
申请人： Nippon Telegraph and Telephone Corporation
发明人： Hirano, Akira, NTT Intellectual Property Center , Miyamoto, Yutaka, NTT Intellectual Property Center , Tomizawa, Masahito, NTT Intel. Property Center , Kuwahara, Shoichirou, NTT Intel. Property Center , Takahashi, Hiroshi , Inoue, Yasuyuki
IPC分类号： H04B10/18
CPC分类号： H04B10/25133 , H04B10/25137
摘要： The present invention relates to an automatic dispersion compensating optical link system. Carrier suppressed RZ encoded optical signals generated using carrier suppressing means and binary NRZ code or partial response code, or carrier suppressed clock signals generated using carrier suppressing means and clock signals are transmitted on an optical transmission line. Two bands of the carrier suppressed RZ encoded optical signals or carrier suppressed clock signals transmitted on the optical transmission line are each divided into bands and are received. Phase information of the respective basebands is extracted from the binary NRZ code components or partial response code components or clock signals in each band and the relative phase difference thereof is detected. The chromatic dispersion value of the optical transmission line is then calculated from the relative phase difference.

8. 发明公开

EP0823647A2 Arrayed-waveguide grating 失效
标题翻译： Wellenleiter矩阵的Gitter
公开(公告)号：EP0823647A2
公开(公告)日：1998-02-11
申请号：EP97305872.0
申请日：1997-08-04
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Himeno, Akira , Okamoto, Katsunari , Takahashi, Hiroshi
IPC分类号： G02B6/34
CPC分类号： G02B6/12011
摘要： An arrayed waveguide grating including an input waveguide or input waveguides (10), an input side slab waveguide lens (11), arrayed waveguides (12), an output side slab waveguide lens (16), and an output waveguide or output waveguides (17), wherein an optical length of the arrayed waveguides (12) monotonically increases or decreases by a constant value between adjacent waveguides; the arrayed waveguides (12) include an input side waveguide block (13), an intermediate waveguide block (14), and an output side waveguide block (15); the intermediate waveguide block (14) includes at least one fan-formed waveguide block, the fan-formed waveguide block is coaxial, equal in vertical angle, and monotonically increases or decreases by a constant value in radius between adjacent waveguides; and the input side waveguide block (13) and the output side waveguide block (15) are line symmetrical about a bisector of the vertical angle of the intermediate waveguide block (14).
摘要翻译：阵列波导光栅，包括输入波导或输入波导（10），输入侧平板波导透镜（11），阵列波导（12），输出侧平板波导透镜（16）和输出波导或输出波导（17 ），其中所述阵列波导（12）的光学长度在相邻波导之间单调增加或减少恒定值; 阵列波导（12）包括输入侧波导块（13），中间波导块（14）和输出侧波导块（15）。中间波导块（14）包括至少一个扇形波导块，扇形波导块是同轴的，垂直角相等，并且在相邻波导之间的半径上单调地增加或减少恒定值; 并且输入侧波导块（13）和输出侧波导块（15）围绕中间波导块（14）的垂直角的二等分线对称。

9. 发明授权

EP2511743B1 A planar lightwave circuit including a cross waveguide 有权
标题翻译：与光波导结平面光学电路
公开(公告)号：EP2511743B1
公开(公告)日：2016-12-21
申请号：EP12173777.9
申请日：2005-08-01
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Saida, Takashi , Tamura, Munehisa , Sakamaki, Yohei , Hashimoto, Toshikazu , Kitoh, Tsutomu , Takahashi, Hiroshi , Yanagisawa, Masahiro , Suzuki, Senichi , Hida, Yasuhiro , Ishii, Motohaya
IPC分类号： G02B6/14 , G02B6/122 , G02B6/28 , G02B6/12
CPC分类号： G02B6/12011 , G02B6/1228 , G02B6/2804

10. 发明公开

EP2511743A1 A planar lightwave circuit including a cross waveguide 有权
标题翻译： Flache optische Schaltung mit Optischemwellenleiterübergang
公开(公告)号：EP2511743A1
公开(公告)日：2012-10-17
申请号：EP12173777.9
申请日：2005-08-01
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Saida, Takashi , Tamura, Munehisa , Sakamaki, Yohei , Hashimoto, Toshikazu , Kitoh, Tsutomu , Takahashi, Hiroshi , Yanagisawa, Masahiro , Suzuki, Senichi , Hida, Yasuhiro , Ishii, Motohaya
IPC分类号： G02B6/14 , G02B6/122 , G02B6/28 , G02B6/12
CPC分类号： G02B6/12011 , G02B6/1228 , G02B6/2804
摘要： A planar lightwave circuit is provided which can be easily fabricated by an existing planar-lightwave-circuit fabrication process, which can lower the propagation loss of signal light and which can convert inputted signal light so as to derive desired signal light. A planar lightwave circuit having a core and a clad which are formed on a substrate, has input optical waveguide(s) (111) which inputs signal light, mode coupling part (112) for coupling a fundamental mode of the inputted signal light to a higher-order mode and/or a radiation mode, or mode re-coupling part (113) for re-coupling the higher-order mode and/or the radiation mode to the fundamental mode, and output optical waveguide(s) (114) which outputs signal light. The mode coupling part or the mode re-coupling part is an optical waveguide which has core width and/or height varied continuously.
摘要翻译：提供一种平面光波电路，其可以通过现有的平面光波形电路制造工艺容易地制造，这可以降低信号光的传播损耗，并且可以转换输入的信号光以便导出所需的信号光。具有形成在基板上的芯和包层的平面光波电路具有输入信号光的输入光波导（111），用于将输入的信号光的基模耦合到模式耦合部（112）高阶模式和/或辐射模式或模式重新耦合部分（113），用于将高阶模式和/或辐射模式重新耦合到基模，并且输出光波导（114）其输出信号光。模式耦合部分或模式重新耦合部分是具有连续变化的芯宽度和/或高度的光波导。

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