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Optical communications system based on optical polarization multiplexing

A polarization multiplexing and polarization technology, which is applied in the field of optical communication and optical information transmission, can solve the problems that polarization multiplexing technology is difficult to realize

Inactive Publication Date: 2006-02-15
姚晓天
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  • Abstract
  • Description
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Problems solved by technology

The random change of the SOP of this light will make it difficult to realize the polarization multiplexing technology

Method used

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  • Optical communications system based on optical polarization multiplexing
  • Optical communications system based on optical polarization multiplexing
  • Optical communications system based on optical polarization multiplexing

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Embodiment Construction

[0022] The technical solutions and embodiments of the present invention are described in detail as follows with reference to the accompanying drawings.

[0023] An embodiment of the polarization demultiplexing technology described in the present invention used in a polarization multiplexed optical communication system is as follows figure 1 As shown in the figure, a polarization multiplexing optical communication system 100 includes a polarization multiplexing transmitter 110 , an optical transmission medium, network, or system 115 which may be an optical fiber link, and a polarization demultiplexing receiver 120 . The transmitter 110 is used to generate a multiplexed optical signal 114, which carries the first and second channels (channel one and channel two) through polarization multiplexing. Such as figure 1 As shown, the optical transmitter 110 includes a first device such as an optical transmitter (TX1) 111, which generates a first initial beam to carry the first optical...

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Abstract

The present invention provides an optical communications system based on optical poloarization multiplexing, belonging to the optical communication and optical information transmission technology field, the invention includes: an optical polarization beamsplitter for dividing received optical signal to two stateofpolarization orthogonal optical, two optical detector for conversion two light beams to two electric signals respectively; a control circuit for catching differential signal between two light beams, one is placed in the Polarization Controller on the input end of the optical polarization beamsplitter, used for adjusting received polarization by responsing to the differential signal to make differential signal positive maximum and negative maximum. The method of the invention includes: one palarization multiplexing light separated to orthogonal two light beams to each other, two light beams are converted to two electrical signals respectively; acquiring two electric signals difference, using two electrical signals as two channels, which resolves two channels of the receiving optical signal. The invention provides a credible, high speed and low cost demultiplexer based on the optical treatment and the optical signal controlled in the receiver.

Description

[0001] This application is based on the patent application submitted to the United States on May 28, 2004 (application number: 60 / 575,127, titled "Method and device for polarization demultiplexing, attorney file number 12361-032P01) and May 27, 2005 The patent application (application number to be filled) filed in the United States on the date of the patent titled "Optical Communication System Based on Polarization Multiplexing Technology" (attorney file No. 12361-032001) is based on the priority of the two patent applications. technical field [0002] The invention belongs to the technical field of optical communication and optical information transmission, in particular to optical polarization and the application of optical polarization in optical communication systems Background technique [0003] Optical polarization is an important parameter of an optical signal and can be applied to many optical devices and optical systems. In some applications, light polarization can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10G02B27/28G02B6/42H04B10/12H04B10/02H04J14/00H04B10/00H04J14/06
CPCH04J14/06
Inventor 姚晓天
Owner 姚晓天
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