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Method and device for detecting wavelength channels

A wavelength channel and wavelength detection technology, which is applied in the field of optical communication, can solve problems such as wrong operation and management, and achieve the effect of avoiding wrong configuration or operation

Active Publication Date: 2018-09-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the network management mistakenly believes that the wavelength channel contains a service signal whose optical power is the measured optical power, resulting in erroneous operation and management

Method used

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  • Method and device for detecting wavelength channels
  • Method and device for detecting wavelength channels
  • Method and device for detecting wavelength channels

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Embodiment Construction

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0070] In the embodiments of the present invention, unless otherwise specified, an optical signal generally refers to a total optical signal in a wavelength channel. Corresponding to different situations, the optical signal can include real service signals and optical noise (such as ASE), or only include real service signals, or only include optical noise, wherein the real service signals can also be expressed as service signals, and optical noise can also be expr...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/079
CPCH04B10/07957H04B10/07953H04B10/07955H04B10/548H04J14/02
Inventor 邓宁王娟
Owner HUAWEI TECH CO LTD
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