专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5471336A Cold start control system and method for use in coherent lightwave communications system 失效
标题翻译：冷启动控制系统及其在相干光波通信系统中的应用
公开(公告)号：US5471336A
公开(公告)日：1995-11-28
申请号：US928101
申请日：1992-08-11
申请人： Hiroshi Onaka , Hideyuki Miyata , Takao Naito
发明人： Hiroshi Onaka , Hideyuki Miyata , Takao Naito
IPC分类号： H04B10/516 , H04B10/07 , H04B10/61 , H04B10/64 , H04N5/50
CPC分类号： H04B10/61 , H04B10/64
摘要： A cold start control system and method for use in a coherent lightwave communications system, in which received signal light is mixed with local light to obtain an IF signal. In the cold start control, the frequency of the local light and/or the frequency of the signal light is swept in the state of the system capable of detecting the IF signal and discrimination between the real/image states and relative correction are made, and then, an AFC operation is started.
摘要翻译：一种在相干光波通信系统中使用的冷启动控制系统和方法，其中接收的信号光与本地光混合以获得IF信号。在冷启动控制中，在能够检测IF信号的系统的状态下，本地光的频率和/或信号光的频率被扫描，并且进行实/图像状态之间的鉴别和相对校正，以及那么AFC操作就开始了。

2. 发明授权

US4965858A Polarization diversity optical receiver for coherent optical communication 失效
标题翻译：用于相干光通信的极化分集光接收机
公开(公告)号：US4965858A
公开(公告)日：1990-10-23
申请号：US310628
申请日：1989-02-14
申请人： Takao Naito , Terumi Chikama , Shigeki Watanabe , Tetsuya Kiyonaga , Yoshihito Onoda , Hideo Kuwahara , Hiroshi Onaka , Hideyuki Miyata
发明人： Takao Naito , Terumi Chikama , Shigeki Watanabe , Tetsuya Kiyonaga , Yoshihito Onoda , Hideo Kuwahara , Hiroshi Onaka , Hideyuki Miyata
IPC分类号： G02F2/00 , H04B10/25 , H04B10/516 , H04B10/564 , H04B10/61
CPC分类号： H04B10/61 , H04B10/614 , H04B10/64
摘要： A polarized wave diversity optical receiver for coherent optical communication including: an optical local oscillating circuit (7) for oscillating local oscillating light; a mixing circuit (8) for mixing signal light and the local oscillating light to obtain two polarized components; a detecting circuit (9) for detecting the polarized component to output intermediate frequency signals (e.sub.S and e.sub.P); and a frequency control circuit (11) for controlling, in accordance with the intermediate frequency signals (e.sub.S and e.sub.P), the oscillating frequency of the optical local oscillating circuit (7). To ensure that the intermediate frequency does not disappear, the frequency control circuit (11) outputs a combined signal of a sum and a difference of the intermediate frequency signals (e.sub.S and e.sub.P).

3. 发明申请

US20050169633A1 Optical transmission device 有权
标题翻译：光传输装置
公开(公告)号：US20050169633A1
公开(公告)日：2005-08-04
申请号：US11082958
申请日：2005-03-18
申请人： Goji Nakagawa , Hideyuki Miyata , Yutaka Kai , Hiroshi Onaka , Setsuo Yoshida , Kyosuke Sone , Tomohiro Ueno
发明人： Goji Nakagawa , Hideyuki Miyata , Yutaka Kai , Hiroshi Onaka , Setsuo Yoshida , Kyosuke Sone , Tomohiro Ueno
IPC分类号： H04B10/27 , G02F1/125 , H01L31/12 , H01S5/0687 , H04B10/07 , H04B10/275 , H04B10/29 , H04J14/00 , H04J14/02
CPC分类号： H04B10/572 , H04J14/0204 , H04J14/0209 , H04J14/021 , H04J14/0213 , H04J14/022 , H04J14/0227
摘要： An optical transmission device improved in quality and reliability of OADM function and permitting configuration of highly-flexible, economical OADM networks. A wavelength tunable filter variably selects a wavelength according to a control frequency. A filter controller applies the control frequency to the filter while scanning wavelength over an entire signal bandwidth, to detect, from a reference wavelength monitor signal supplied thereto, a reference control frequency which permits the filter to select a reference wavelength and according to which wavelength is matched. On receiving a wavelength selection request, the controller obtains a target control frequency from the reference control frequency and the position of a target wavelength relative to the reference wavelength, and applies the obtained frequency to the filter. A reference wavelength filter transmits the reference wavelength therethrough. A light-receiving element monitors the transmitted reference wavelength to generate the monitor signal.
摘要翻译：一种光传输设备改进了OADM功能的质量和可靠性，并允许配置高度灵活，经济的OADM网络。波长可调滤波器根据控制频率可变地选择波长。滤波器控制器在整个信号带宽上扫描波长时将滤波器的控制频率施加到滤波器，从提供给其的参考波长监测信号中检测出允许滤波器选择参考波长的参考控制频率，根据哪个波长是匹配。在接收到波长选择请求时，控制器从参考控制频率和目标波长相对于参考波长的位置获得目标控制频率，并将获得的频率应用于滤波器。参考波长滤波器透过参考波长。光接收元件监测发射的参考波长以产生监测信号。

4. 发明授权

US06782017B1 Wavelength locker and wavelength discriminating apparatus 失效
标题翻译：波长锁定器和波长识别装置
公开(公告)号：US06782017B1
公开(公告)日：2004-08-24
申请号：US09560151
申请日：2000-04-28
申请人： Yutaka Kai , Hideyuki Miyata , Hiroshi Onaka
发明人： Yutaka Kai , Hideyuki Miyata , Hiroshi Onaka
IPC分类号： H01S313
CPC分类号： H04B10/572 , H01S5/0078 , H01S5/0687 , H04B10/506
摘要： An object of the invention is to provide a wavelength locker which has a wider locking range than that of the wavelength locker in the prior art and which can cope with a plurality of wavelengths. The aforementioned objects are achieved by a wavelength locker, which comprises a periodic filter, a detecting part for detecting the intensity of a laser beam through the periodic filter, and a controlling part for controlling the wavelength of the laser beam to a desired wavelength in accordance with the output of the detecting part. In this wavelength locker, the FSR of the periodical filter is controlled according to space between the wavelengths, and refers to the number of wavelength to be locked, so that the characteristics corresponding to output wavelengths that vary in every period twice the space of wavelengths and are complementary to each other, can be obtained, and the locking range will become wider.
摘要翻译：本发明的目的是提供一种具有比现有技术中的波长锁定器更宽的锁定范围并且可以应付多个波长的波长锁定器。上述目的通过一种波长锁定器实现，该波长锁定器包括周期滤波器，用于检测通过周期滤波器的激光束的强度的检测部分，以及用于将激光束的波长控制为所需波长的控制部分与检测部分的输出。在该波长锁定器中，周期滤波器的FSR根据波长之间的空间来控制，并且是指要锁定的波长的数量，使得对应于输出波长的特性在每个周期中变化是波长空间的两倍，互补，可以获得，锁定范围将变宽。

5. 发明授权

US06252688B1 Optical wavelength multiplex transmission method and optical dispersion compensation method 有权
公开(公告)号：US06252688B1
公开(公告)日：2001-06-26
申请号：US09438147
申请日：1999-11-10
申请人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Okazaki
发明人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Okazaki
IPC分类号： H04J1402
CPC分类号： G02B6/29377 , G02B6/4215 , H04B10/25133 , H04B10/2525 , H04B10/25253 , H04B10/255 , H04B10/2563 , H04B2210/252 , H04B2210/254 , H04B2210/258 , H04J14/02 , H04J14/0224
摘要： The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength &lgr;0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.

6. 发明授权

US06252687B1 Optical wavelength multiplex transmission method and optical dispersion compensation method 失效
公开(公告)号：US06252687B1
公开(公告)日：2001-06-26
申请号：US09066580
申请日：1998-04-27
申请人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
发明人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
IPC分类号： H04J1402
CPC分类号： G02B6/29377 , G02B6/4215 , H04B10/25133 , H04B10/2525 , H04B10/25253 , H04B10/255 , H04B10/2563 , H04B2210/252 , H04B2210/254 , H04B2210/258 , H04J14/02 , H04J14/0224
摘要： The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength &lgr;0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.

7. 发明授权

US07006771B1 Optical communication apparatus and optical add/drop apparatus 失效
公开(公告)号：US07006771B1
公开(公告)日：2006-02-28
申请号：US09495715
申请日：2000-02-01
申请人： Hideyuki Miyata , Hiroshi Onaka
发明人： Hideyuki Miyata , Hiroshi Onaka
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , G02F2203/20 , H04B10/50595 , H04B10/572 , H04B10/58 , H04J14/0201 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/0276 , H04J14/0283
摘要： The present invention relates to an optical communication apparatus for detecting the intensity of light in an optical modulator or the intensity of a modulation signal and for controlling the operating point of the optical modulator based on the result of detection. In the optical communication apparatus having such a configuration, the operating point of the optical modulator can be kept stable even when the input light or the modulation signal is temporarily non-existent in the optical communication apparatus.

8. 发明申请

US20050226550A1 Control method and control apparatus of optical device 失效
公开(公告)号：US20050226550A1
公开(公告)日：2005-10-13
申请号：US11144607
申请日：2005-06-06
申请人： Hideyuki Miyata , Hiroshi Onaka , Tadao Nakazawa , Yutaka Kai , Hiroshi Miyata , Yoichi Takasu , Naoki Hashimuto
发明人： Hideyuki Miyata , Hiroshi Onaka , Tadao Nakazawa , Yutaka Kai , Hiroshi Miyata , Yoichi Takasu , Naoki Hashimuto
IPC分类号： G02B6/30 , G02B5/30 , G02B6/12 , G02B6/122 , G02F1/01 , G02F1/11 , G02F1/125 , G02F1/31 , H04J14/02 , G02B6/26
CPC分类号： H04J14/0221 , G02F1/0121 , G02F2203/585 , H04B10/0795 , H04B10/07953 , H04B10/0797
摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

9. 发明授权

US06417945B2 Optical wavelength multiplex transmission method and optical dispersion compensation method 有权
标题翻译：光波长复用传输方法和光色散补偿方法
公开(公告)号：US06417945B2
公开(公告)日：2002-07-09
申请号：US09799639
申请日：2001-03-07
申请人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Okazaki
发明人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Okazaki
IPC分类号： H04J1402
CPC分类号： G02B6/29377 , G02B6/4215 , H04B10/25133 , H04B10/2525 , H04B10/25253 , H04B10/255 , H04B10/2563 , H04B2210/252 , H04B2210/254 , H04B2210/258 , H04J14/02 , H04J14/0224
摘要： An optical transmission system in which a wavelength-division-multplexed (WDM) optical signal including a plurality of optical signals having different wavelengths is demultiplexed into first optical signals and second optical signals. The second optical signals have wavelengths longer than wavelengths of the first optical signals. A first dispersion compensator compensates dispersion of the first optical signals. A second dispersion compensator compensates dispersion of the second optical signals. The dispersion compensated first and second optical signals are then multiplexed together.
摘要翻译：一种光传输系统，其中包括具有不同波长的多个光信号的波分复用（WDM）光信号被解复用为第一光信号和第二光信号。第二光信号具有比第一光信号的波长长的波长。第一色散补偿器补偿第一光信号的色散。第二色散补偿器补偿第二光信号的色散。然后将色散补偿的第一和第二光信号复用在一起。

10. 发明授权

US5636046A Optical dispersion compensation method using transmissible band determined from synergetic effect of self phase modulation and group velocity dispersion 失效
标题翻译：使用自相位调制和组速度色散的协同效应确定的透射带的光色散补偿方法
公开(公告)号：US5636046A
公开(公告)日：1997-06-03
申请号：US425616
申请日：1995-04-20
申请人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
发明人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
IPC分类号： H04J14/00 , G02B6/34 , H04B10/2507 , H04B10/2525 , H04B10/255 , H04B10/2563 , H04B10/299 , H04J14/02 , H04B10/00
CPC分类号： G02B6/29377 , G02B6/4215 , H04B10/25133 , H04B10/2525 , H04B10/25253 , H04B10/255 , H04B10/2563 , H04J14/0224 , H04B2210/252 , H04B2210/254 , H04B2210/258 , H04J14/02
摘要： The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength .lambda..sub.0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.
摘要翻译：本发明提供一种光波长多路复用传输方法，其中使用光纤零色散波长附近的频带，并且将光信号设置在影响频带，波长色散和四波混频的有效信道间隔处考虑到实现不受FWM串扰影响的增加容量的光通信系统。当使用光纤复用并发送具有不同波长的多个信道的光信号时，设置包括光纤的零色散波长λ0的预定带宽的四波混频抑制保护带，并且信号要复用的多个信道的光波被布置在保护带外部的较短波长侧和较长波长侧中的一个上。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式