公开(公告)号：US20050031355A1

公开(公告)日：2005-02-10

申请号：US10789804

申请日：2004-02-27

Applicant: Feng Shi ,  Genzao Zhang ,  Xiaoli Fu ,  Jinghui Li ,  Tongqing Wang ,  John Ralston ,  Moni Mathew

Inventor： Feng Shi ,  Genzao Zhang ,  Xiaoli Fu ,  Jinghui Li ,  Tongqing Wang ,  John Ralston ,  Moni Mathew

IPC: G02B20060101 ,  H04B10/06 ,  H04B10/08 ,  H04B10/12 ,  H04B10/18 ,  H04J14/08

CPC classification number: H04B10/25133

Abstract: Systems and methods for optical communications. In one implementation, a communications device is provided. The communications device includes an Optical domain Adaptive Dispersion Compensation Module (OADCM); an Electrical domain Adaptive Distortion Compensation Module (EADCM); and a controller coupled to, and operable to selectively control, both the OADCM and the EADCM.

Abstract translation: 光通信系统和方法。 在一个实现中，提供通信设备。 通信设备包括光域自适应色散补偿模块（OADCM）; 电域自适应失真补偿模块（EADCM）; 以及耦合到OADCM和EADCM并且可操作以选择性地控制OADCM和EADCM的控制器。

公开(公告)号：US06323994B1

公开(公告)日：2001-11-27

申请号：US09289733

申请日：1999-04-12

Applicant: Jinghui Li ,  Suet Yuen

Inventor： Jinghui Li ,  Suet Yuen

IPC: H04J1402

CPC classification number: H04B10/2941 ,  H01S3/06754 ,  H04B10/2972 ,  H04B2210/256 ,  H04J14/0221

Abstract: An in-line repeater implemented within a Wavelength Division Multiplexed (WDM) optical fiber communication system is shown that includes an attenuator. The communication system includes a WDM multiplexer that transmits a WDM signal including a series of WDM channels, via the in-line repeater, to a demultiplexer that separates the WDM channels into a series of output signals. Within the in-line repeater, the attenuator is coupled between two stages of a single amplifier in order to aid in the power equalization of the WDM channels at the demultiplexer. The addition of the attenuator results in the powers and OSNR of the individual WDM channels becoming closer in value, hence reducing the time and the dynamic range of transmitter power adjustments required for traditional methods to equalize the channels' powers.

Abstract translation: 示出了在波分复用（WDM）光纤通信系统中实现的在线中继器，其包括衰减器。 通信系统包括WDM复用器，其将包括一系列WDM信道的WDM信号经由直列中继器发送到将WDM信道分离成一系列输出信号的解复用器。 在同步中继器内，衰减器耦合在单个放大器的两级之间，以便于解复用器上的WDM信道的功率均衡。 衰减器的增加导致各个WDM信道的功率和OSNR变得越来越接近，从而减少传统方法所需的发射机功率调整的时间和动态范围，以平衡信道的功率。

公开(公告)号：US5706375A

公开(公告)日：1998-01-06

申请号：US711978

申请日：1996-09-10

Applicant: Stephen J. Mihailov ,  Mark Farries ,  Jinghui Li ,  Koichi Abe ,  Gary S. Duck

Inventor： Stephen J. Mihailov ,  Mark Farries ,  Jinghui Li ,  Koichi Abe ,  Gary S. Duck

IPC: G02B6/34 ,  G02F1/01 ,  H04J14/02 ,  G02B6/28

CPC classification number: G02B6/2932 ,  G02B6/29322 ,  G02B6/29383 ,  G02B6/29395 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  G02B6/022 ,  G02F1/011 ,  G02F1/0147 ,  G02F2201/307 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0221

Abstract: A device for distributing an optical signal has an optical waveguide with a plurality of gratings disposed in series therein, the gratings having a predetermined reflectivity response within a specific wavelength range; an optical circulator having at least three ports, one of the ports serving as an input port for receiving the optical signal, and another port for removing at least a part of the optical signal reflected from one of the gratings; and control means for individually controlling at least some of the gratings to effect a change of the wavelength range of the reflectivity response of the gratings. The change may be a shift, an expansion or a compression of the range. The device can function as a signal distributor (router), an equalizer or a demultiplexer. The reflectivity response is preferably a sloped response.

Abstract translation: 用于分配光信号的装置具有光波导，其中多个光栅串联设置，光栅在特定波长范围内具有预定的反射率响应; 具有至少三个端口的光循环器，其中一个端口用作用于接收光信号的输入端口，以及用于去除从一个光栅反射的光信号的至少一部分的另一个端口; 以及用于分别控制至少一些光栅以实现光栅的反射率响应的波长范围变化的控制装置。 这种变化可能是一个变化，扩大或压缩的范围。 该设备可以用作信号分配器（路由器），均衡器或解复用器。 反射率响应优选为倾斜响应。