公开(公告)号：US20070031148A1

公开(公告)日：2007-02-08

申请号：US11485975

申请日：2006-07-14

申请人： Weishi Ll ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

发明人： Weishi Ll ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

IPC分类号： H04J14/02

CPC分类号： H04J3/1611 ,  H04J3/1617 ,  H04J14/02

摘要： The present invention discloses an optical communication system, a sub-rate multiplexing/de-multiplexing apparatus and the method thereof such that the optical communication system could meet the demand of Metropolitan Area Network (MAN) communications using the existing optical fibre network. This optical communication system includes an optical transmitting module and an optical receiving module connected by optical fibres, wherein the optical transmitting module is used for converting the inputted electrical signals into optical signals and transferring the optical signals to the optical receiving module via optical fibres, and the optical receiving module is used for converting the received optical signals into electrical signals and outputting the electrical signals. In the optical signals transferred by optical fibres, the data transmission rate of at least one wavelength is about 5 Gb/s. One or multiple optical amplifiers may be incorporated as well between the optical transmitting module and the optical receiving module.

摘要翻译： 本发明公开了一种光通信系统，子速率复用/解复用装置及其方法，使得光通信系统能够利用现有的光纤网络满足城域网（MAN）通信的需求。 该光通信系统包括由光纤连接的光发送模块和光接收模块，其中，所述光发送模块用于将输入的电信号转换为光信号，并通过光纤将光信号传送到光接收模块，以及 光接收模块用于将接收的光信号转换为电信号并输出​​电信号。 在由光纤传送的光信号中，至少一个波长的数据传输速率约为5Gb / s。 也可以在光发送模块和光接收模块之间并入一个或多个光放大器。

公开(公告)号：US07580635B2

公开(公告)日：2009-08-25

申请号：US11485975

申请日：2006-07-14

申请人： Weishi Li ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

发明人： Weishi Li ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

IPC分类号： H04J14/00 ,  H04B10/00

CPC分类号： H04J3/1611 ,  H04J3/1617 ,  H04J14/02

摘要： The present invention discloses an optical communication system, a sub-rate multiplexing/de-multiplexing apparatus and the method thereof such that the optical communication system could meet the demand of Metropolitan Area Network (MAN) communications using the existing optical fiber network. This optical communication system includes an optical transmitting module and an optical receiving module connected by optical fibers, wherein the optical transmitting module is used for converting the inputted electrical signals into optical signals and transferring the optical signals to the optical receiving module via optical fibers, and the optical receiving module is used for converting the received optical signals into electrical signals and outputting the electrical signals. In the optical signals transferred by optical fibers, the data transmission rate of at least one wavelength is about 5 Gb/s. One or multiple optical amplifiers may be incorporated as well between the optical transmitting module and the optical receiving module.

摘要翻译： 本发明公开了一种光通信系统，子速率复用/解复用装置及其方法，使得光通信系统能够利用现有的光纤网络满足城域网（MAN）通信的需求。 该光通信系统包括由光纤连接的光发送模块和光接收模块，其中，所述光发送模块用于将输入的电信号转换为光信号，并通过光纤将光信号传送到光接收模块，以及 光接收模块用于将接收的光信号转换为电信号并输出​​电信号。 在由光纤传送的光信号中，至少一个波长的数据传输速率约为5Gb / s。 也可以在光发送模块和光接收模块之间并入一个或多个光放大器。

公开(公告)号：US08380070B2

公开(公告)日：2013-02-19

申请号：US12703278

申请日：2010-02-10

申请人： Congqi Li ,  Zhiyong Huang ,  Zhiwen Chang ,  Yuzhi Jin ,  Da He ,  Jianmei Zhang ,  Shouchang Niu ,  Shixing Li ,  Tianhai Chang ,  Jinghua Song

发明人： Congqi Li ,  Zhiyong Huang ,  Zhiwen Chang ,  Yuzhi Jin ,  Da He ,  Jianmei Zhang ,  Shouchang Niu ,  Shixing Li ,  Tianhai Chang ,  Jinghua Song

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/0256 ,  H04J14/0279

摘要： An upgrading method, a system, and an apparatus of a low-density wavelength division multiplexing (WDM) system are provided. The method includes: detecting an output wavelength shift of a wavelength conversion unit, and adjusting an output wavelength of the wavelength conversion unit having the output wavelength shift higher than a threshold, so that the output wavelength shift of the wavelength conversion unit is lower than the threshold; adjusting an adjustable interleaved demultiplexer, until requirements for a demultiplexing parameter of a high-density WDM system are met. Thus, the problem that services are interrupted when a low-density MDM system is upgraded to a high-density MDM system is solved. A WDM system, and a wavelength multiplexing/demultiplexing apparatus and method are also provided.

摘要翻译： 提供了一种低密度波分复用（WDM）系统的升级方法，系统和装置。 该方法包括：检测波长转换单元的输出波长移位，以及调整具有高于阈值的输出波长位移的波长转换单元的输出波长，使得波长转换单元的输出波长漂移低于 阈; 调整可调节交错解复用器，直到满足高密度WDM系统的解复用参数的要求。 因此，解决了当将低密度MDM系统升级到高密度MDM系统时服务被中断的问题。 还提供了WDM系统和波长复用/解复用装置和方法。

公开(公告)号：US07564881B2

公开(公告)日：2009-07-21

申请号：US10898910

申请日：2004-07-26

申请人： Tianhai Chang

发明人： Tianhai Chang

IPC分类号： H01S3/13 ,  H01S3/00 ,  H01S3/04

CPC分类号： H04B10/564 ,  H04B10/503

摘要： The invention discloses an optical transmission module with digital adjustment and method thereof. The module includes a laser (21), a laser driver (22), an automatic power adjustment circuit (23), an automatic temperature adjustment circuit (24), a digital adjustment circuit (25) and a memory (26). The digital adjustment circuit, consisted of a digital-to-analog converter or a digital adjustment potentiometer, receives a digital adjustment signal and outputs, respectively, a extinction ratio adjustment signal and a cross point adjustment signal to the laser driver, an optical power adjustment signal to the automatic power adjustment circuit and an optical wavelength adjustment signal to the automatic temperature adjustment circuit. The memory stores data, using for on-line adjustment of the optical transmission module, at least including parameters of said optical transmission module and said laser emitting optical power parameters, to be reported upward. During adjustment, look up the parameter table of optical transmission modules, according to an expected output optical power, obtain corresponding DAC channel data and write it to the digital adjustment circuit in which adjustment signals of corresponding parameters are produced; and according to A/D conversion result detected by the laser against light, look up the table for transmitted power to be reported upward, to obtain a transmitted power value for reporting upward.

摘要翻译： 本发明公开了一种数字调制光传输模块及其方法。 该模块包括激光器（21），激光驱动器（22），自动功率调节电路（23），自动温度调节电路（24），数字调节电路（25）和存储器（26）。 由数模转换器或数字调节电位器组成的数字调节电路分别接收数字调节信号，分别向激光驱动器输出消光比调整信号和交叉点调整信号，光功率调整 信号到自动功率调节电路和光波长调整信号到自动温度调节电路。 存储器存储用于光传输模块的在线调整的数据，至少包括所述光传输模块的参数和所述激光发射光功率参数，以向上报告。 在调整过程中，根据预期的输出光功率查找光传输模块的参数表，获取相应的DAC通道数据，并将其写入数字调节电路，在其中产生相应参数的调整信号; 并根据激光对光检测的A / D转换结果，查找发送功率表向上报告，得到发送功率值向上报告。