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11. 发明授权

US6055081A Chromatic dispersion compensator and chromatic dispersion compensating optical communication system 失效
标题翻译：色散补偿器和色散补偿光通信系统
公开(公告)号：US6055081A
公开(公告)日：2000-04-25
申请号：US782756
申请日：1997-01-10
申请人： Yasushi Koyano , Masayuki Shigematsu
发明人： Yasushi Koyano , Masayuki Shigematsu
IPC分类号： H04B10/18
摘要： In a chromatic dispersion compensator, an optical signal directing unit such as an optical circulator or a directional coupler having a first, second, third and fourth ports. The optical signal directing unit directs an optical signal inputted from one of the ports to another port of the ports. A reflection-type compensator including a dispersion compensating fiber, a reflecting portion and changing unit for changing a polarization direction of a reciprocating signal light, in which the dispersion compensating fiber is connected to the reflecting portion via the changing unit. An input transmission path which is connected to the first port; and an output transmission path which is connected to the fourth port so that the signal light is outputted from the fourth port. The reflection-type compensating unit is connected to one of the second and third ports, and the chirped grating is connected to the other port.
摘要翻译：在色散补偿器中，诸如光循环器的光信号引导单元或具有第一，第二，第三和第四端口的定向耦合器。光信号引导单元将从一个端口输入的光信号引导到端口的另一端口。一种反射型补偿器，包括色散补偿光纤，反射部分和用于改变往复信号光的偏振方向的改变单元，其中色散补偿光纤通过改变单元连接到反射部分。连接到第一端口的输入传输路径; 以及输出传输路径，其连接到第四端口，使得信号光从第四端口输出。反射型补偿单元连接到第二和第三端口中的一个，并且啁啾光栅连接到另一端口。

12. 发明授权

US5701188A Chromatic dispersion compensator and chromatic dispersion compensating optical communication system 失效
标题翻译：色散补偿器和色散补偿光通信系统
公开(公告)号：US5701188A
公开(公告)日：1997-12-23
申请号：US535902
申请日：1995-09-28
申请人： Masayuki Shigematsu , Yasushi Koyano
发明人： Masayuki Shigematsu , Yasushi Koyano
IPC分类号： G02B6/34 , H04B10/2519 , H04B10/2525 , H04B10/00
CPC分类号： G02B6/29374 , G02B6/29317 , H04B10/2519 , H04B10/2525
摘要： A chromatic dispersion compensator includes an optical circulator or a directional coupler having a first, second and third ports; an input transmission path connected to the first port; an output transmission path connected to the third port; a chirped grating connected to the second port; and a dispersion compensating fiber connected to at least one of the first, second and third ports. The dispersion compensating fiber and the chirped grating have chromatic dispersion characteristics which are opposite to the chromatic dispersion characteristics of the input and output transmission paths. In the wavelength compensator, the optical signal is incident into the first port from the input transmission path, and is made to go out to the chirped grating from the second port. Further, the optical signal is incident from the chirped grating to return to the second port, and is made to go to the output transmission path from the third port.
摘要翻译：色散补偿器包括具有第一，第二和第三端口的光循环器或定向耦合器; 连接到第一端口的输入传输路径; 连接到第三端口的输出传输路径; 连接到第二端口的啁啾光栅; 以及连接到第一，第二和第三端口中的至少一个的色散补偿光纤。色散补偿光纤和啁啾光栅具有与输入和输出传输路径的色散特性相反的色散特性。在波长补偿器中，光信号从输入传输路径入射到第一端口中，并从第二端口出来到啁啾光栅。此外，光信号从啁啾光栅入射返回到第二端口，并使其从第三端口进入输出传输路径。

13. 发明申请

US20100111486A1 DISPERSION COMPENSATING MODULE 审中-公开
标题翻译：分散补偿模块
公开(公告)号：US20100111486A1
公开(公告)日：2010-05-06
申请号：US12611461
申请日：2009-11-03
申请人： Tetsuya HAYASHI , Eisuke SASAOKA , Kazuya KUWAHARA , Takashi SASAKI , Yasushi KOYANO , Fumiyoshi OHKUBO , Shinjiro HAGIHARA
发明人： Tetsuya HAYASHI , Eisuke SASAOKA , Kazuya KUWAHARA , Takashi SASAKI , Yasushi KOYANO , Fumiyoshi OHKUBO , Shinjiro HAGIHARA
IPC分类号： G02B6/00
CPC分类号： G02B6/4457 , G02B6/02214
摘要： The present invention relates to a dispersion compensating module having a configuration that can effectively suppress high-speed fluctuations in the polarization state of light even when being imparted with impact or vibration. In the dispersion compensating module, a dispersion compensating optical fiber is fixed while being wound around the barrel of a bobbin, and the bobbin is fixed in the inside of a housing via a buffer that absorbs impact or vibration. The bobbin corresponds to a holder holding the dispersion compensating optical fiber fixed in a state of coil. The housing corresponds to a struct fixing the holder. The buffer fills a space between the housing and the bobbin on which the dispersion compensating optical fiber is coiled.
摘要翻译：本发明涉及一种具有能够有效地抑制光的偏振状态的高速波动的色散补偿模块，即使被施加冲击或振动。在色散补偿模块中，色散补偿光纤被缠绕在绕线筒的筒体上是固定的，并且线轴通过吸收冲击或振动的缓冲器固定在壳体的内部。线轴对应于固定在线圈状态的保持色散补偿光纤的保持架。外壳对应于固定支架的结构。缓冲器填充壳体和卷绕有色散补偿光纤的线轴之间的空间。

14. 发明授权

US5838867A Dispersion compensating fiber and optical transmission system including the same 失效
标题翻译：色散补偿光纤和光传输系统包括它们
公开(公告)号：US5838867A
公开(公告)日：1998-11-17
申请号：US834305
申请日：1997-04-15
申请人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
发明人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
IPC分类号： C03B37/014 , G02B6/34 , H01S3/067 , H01S3/30 , G02B6/16
CPC分类号： G02B6/02261 , C03B37/014 , G02B6/02004 , G02B6/0228 , G02B6/02285 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/29377 , C03B2203/22 , C03B2203/36 , G02B6/0281 , G02B6/0283 , G02B6/0286 , H01S3/06729 , H01S3/302
摘要： The present invention relates to a dispersion compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 .mu.m wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 .mu.m wavelength band: chromatic dispersion not less than -40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than -0.5 ps/km/nm.sup.2 and not more than -0.1 ps/km/nm.sup.2 ; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.multidot.km.sup.-1/2 ; mode field diameter not less than 4.5 .mu.m and not more than 6.5 .mu.m; cut-off wavelength not less than 0.7 .mu.m and not more than 1.7 .mu.m in the length of 2 m; and bending loss at the diameter of 20 mm, not more than 100 dB/m. The dispersion compensating fiber is optically connected with a dispersion shifted fiber as a compensated object at a ratio of appropriate lengths, which can improve the system including the dispersion compensating fiber in the total chromatic dispersion and dispersion slope of the system in the 1.55 .mu.m band.
摘要翻译：本发明涉及一种用于改善传输系统的色散补偿光纤，其在1.55μm波长带中的总色散和色散斜率。根据本发明的色散补偿光纤的特征在于对于1.55μm波长带中的光具有以下特性：色散不低于-40ps / km / nm且不大于0ps / km / nm; 色散斜率不小于-0.5 ps / km / nm2，不大于-0.1 ps / km / nm2; 传输损耗不超过0.5 dB / km; 偏振模色散不大于0.7 psxkm- + E，fra 1/2 + EE; 模场直径不小于4.5亩，不超过6.5亩; 截止波长不小于0.7μm，长度不超过1.7μm; 弯曲损耗为20mm，不大于100dB / m。色散补偿光纤以适当长度的比例与作为补偿对象的色散位移光纤光学连接，这可以改善包括色散补偿光纤在1.55μm带中的系统的总色散和色散斜率的系统。

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