A communication device and method

Abstract

An embodiment of the present invention provides a communication device, comprising: a first acquisition unit (10) acquires the first specific wavelength light and the second specific wavelength light from the first optical path; the first receiving unit (30) converts the first specific wavelength light converted into the first electrical signal; the first control unit (40) sends the first modulated signal to the first loopback unit (20) according to the first electrical signal from the first receiving unit (10); the first loopback unit ( 20) Modulate the second specific wavelength light from the first acquisition unit (10) according to the first modulation signal, and return the modulated second specific wavelength light to the second optical path, and the optical signal in the second optical path The transmission direction of is opposite to the transmission direction of the optical signal in the first optical path. The invention also discloses a communication method. By adopting the embodiment of the present invention, the communication with the end station equipment can be realized without separately providing a light source, and the service performance of the communication can be effectively guaranteed.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a communication device and method. Background technique [0002] At present, the development trend of the submarine cable communication industry is: it is necessary to realize the communication between the end station equipment and the underwater equipment, such as the communication between the end station equipment and the underwater relay equipment, underwater branch equipment, etc. The working status, performance indicators, fault conditions, circuit and optical path switching of the equipment, etc., so as to perform network routing switching, fault location, processing and troubleshooting, etc. [0003] refer to figure 1 , is a schematic diagram of the communication between the terminal equipment and the underwater equipment. The end station equipment 1a sends a command (commandsignal) to at least one underwater equipment 1b, informing which underwater equipme...

AI Technical Summary

Problems solved by technology

[0008] (1) Since the total power on the main optical path is modulated, once a failure occurs, the business will be affected, and in severe cases, the business will be interrupted, which does not meet the high reliability requirements of underwater equipment;

[0009] (2) A special light-emitting device is required to pump the laser 60a, which is expensive and prone to damage, making the cost high and difficult to maintain

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