Optical transmitting and receiving method, device and system

A technology of optical transceiver and laser, which is applied in the field of optical communication, can solve the problems of unfavorable transceiver optical signal consistency, increase the cost of optical transceiver equipment, etc., and achieve the effect of ensuring consistency and reducing costs

Active Publication Date: 2010-06-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And because light transmission also needs a transmitting laser, therefore, it will cause that two lasers need to be set in an optical transceiver device, respectively as a light source generating device for sending signals and

Method used

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  • Optical transmitting and receiving method, device and system
  • Optical transmitting and receiving method, device and system
  • Optical transmitting and receiving method, device and system

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] Embodiments of the present invention will be described below with reference to the accompanying drawings. see figure 1 , is a schematic diagram of the composition of the optical transceiver system in the embodiment of the present invention, the system includes a first optical transceiver device 1 and a second optical transceiver device 2, wherein the first optical transceiver device 1 is used to generate Standard optical signal, and send the optical signal ...

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Abstract

The invention discloses an optical transmitting and receiving method, an optical transmitting and receiving device and an optical transmitting and receiving system. The device comprises a light production unit, a light splitting unit, a processing and sending unit, a receiving and processing unit, and a feedback control unit, wherein the light production unit is used for producing laser; the light splitting unit is used for splitting the laser produced by the light production unit into two paths of optical signals, namely one path is an emitting light signal, and the other path is a receivinglocal vibration light signal; the processing and sending unit is used for carrying out polarization processing on the emitting light signal, and sending the emitting light signal; the receiving and processing unit is used for receiving the optical signal, and carrying out polarizing coherent processing according to the received optical signal and the receiving local vibration light signal to acquire a feedback control signal; the feedback control unit is used for controlling the laser produced by the light production unit according to the feedback control signal so as to ensure that the optical signal sent by the processing and sending unit and the input optical signal received by the receiving and processing unit have a consistent light characteristic. Due to the adoption of the technical scheme of the invention, light source equipment in the optical transmitting and receiving device can be reduced; and the cost is reduced.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to an optical transceiver method, device and system. Background technique [0002] In order to increase the transmission rate, the technology of polarization multiplexing related optical transceiver is proposed. In this technology, the optical signal generated by the laser is subjected to polarization processing, that is, after obtaining an optical signal composed of two orthogonally polarized lights, the data signal is adjusted and sent in the optical signal. At the same time, when receiving such an optical signal, the received optical signal is coherently processed according to the optical signal generated by the local laser, so as to obtain a correct and stable signal. [0003] In the process of realizing the present invention, the inventors found that at present, the reception of polarization-multiplexed coherent light is usually realized by using a transmitting laser and a...

Claims

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Application Information

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IPC IPC(8): H04J14/06H04B10/14H04B10/40
Inventor 熊前进
Owner HUAWEI TECH CO LTD
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