Method and device for detecting wavelength channels

Abstract

A method and an apparatus for monitoring a wavelength channel are disclosed. The method includes: performing optical-to-electrical detection on an optical signal on a wavelength channel, to obtain an electrical signal; obtaining a frequency spectrum of the electrical signal; determining a first parameter M according to an equation M = N AC , where N AC represents an alternating current component of the frequency spectrum of the electrical signal; and if M is greater than a preset first threshold, determining that the wavelength channel includes a real service signal. According to the method and apparatus, an erroneous configuration or operation of a network management system can be avoided.

Description

technical field

[0001] The present invention relates to the field of optical communication, and more particularly, to a method and device for detecting wavelength channels. Background technique

[0002] Optical performance monitoring is an important function in optical communication networks. By monitoring and measuring the performance of optical components and / or optical signals at some points in the optical communication network in real time, the actual status of the optical network can be obtained, and network management and maintenance can be carried out accordingly. Commonly used monitoring of optical signal performance includes measurement of optical signal wavelength, power, optical signal-to-noise ratio (Optical Signal Noise Ratio, OSNR) and the like.

[0003] The optical power monitoring solution in the prior art measures the power of each wavelength channel in a wavelength division multiplexing (Wavelength Division Multiplexing, WDM) system, and reports it to a ne...

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