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Transceiver in wavelength division multiplexing passive optical network, and wavelength adjustment method

A technology of passive optical network and wavelength division multiplexing, which is applied in electromagnetic transceivers, electromagnetic wave transmission systems, electrical components, etc., can solve the problems of high cost, increased cost of OLT and ONU, power consumption, volume, and large volume. Achieve the effects of low cost, simple structure, and fast handshake process

Active Publication Date: 2019-06-14
CHENGDU SUPERXON COMM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, complex hardware units have the disadvantages of large volume and high cost, which will increase the cost, power consumption and volume of OLT and ONU

Method used

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  • Transceiver in wavelength division multiplexing passive optical network, and wavelength adjustment method
  • Transceiver in wavelength division multiplexing passive optical network, and wavelength adjustment method
  • Transceiver in wavelength division multiplexing passive optical network, and wavelength adjustment method

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] refer to Figure 4 , The invention provides a wavelength division multiplexing passive optical network. In the system there are at least a first transceiver and a second transceiver. One of the first transceiver and the second transceiver is an OLT, and the other is an ONU. In one embodiment, the first transceiver is an OLT and the second transceiver is an ONU. stored in the first transceiver and the second transceiver as Figure 5 In the shown wavelength-pilot binding relationship table, there is a binding relationship between wavelengths and pilot frequencies between each row in the wavelength-pilot binding relationship table. refer to Image 6 , the first transceiver and the second transceiver adopt the fol...

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Abstract

The invention discloses a transceiver in a wavelength division multiplexing passive optical network and a wavelength adjustment method. According to the transceiver of the invention, a pilot signal with a fixed frequency is adopted to carry out topping on a service signal directly. The wavelength is identified through the frequency of the pilot frequency. The intensity of the signal is representedby the amplitude of the pilot frequency, the indication of the wavelength adjustment direction is obtained by continuous two times of interaction with another transceiver, the wavelength is locked byobtaining feedback information from the another transceiver a plurality of times and continuously adjusting the wavelength, and the wavelength is adjusted on the basis of the locally stored wavelength. And based on a wavelength-pilot frequency binding relation table, wavelength distribution through pilot frequency signals is carried out. The transceiver does not need a complex circuit unit, and is simple in structure and low in cost. According to the wavelength adjusting method, control is completed through handshaking between transceivers, and system intervention is not needed.

Description

technical field [0001] The invention relates to a wavelength division multiplexing passive optical network, in particular to a transceiver and a wavelength adjustment method in the wavelength division multiplexing passive optical network. Background technique [0002] In Wavelength Division Multiplexing-Passive Optical Network (WDM-PON, Wavelength Division Multiplexing-Passive Optical Network), the optical module needs to automatically obtain the wavelength allocation information and send the allocated optical wavelength. 1. Differences in internal parameters will cause the working wavelength to deviate from the standard defined wavelength. The phenomenon of wavelength drift may cause the strength of the signal received by the receiving end to weaken. Therefore, it is necessary to adjust the wavelength of the optical signal. [0003] At present, the ITUT-989.2 protocol of WDM-PON recommends using the auxiliary management control channel (AMCC, Auxiliary Management and Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/40H04B10/572H04B10/079
Inventor 罗小东邱少锋
Owner CHENGDU SUPERXON COMM TECH CO LTD
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