Monitoring device and method for optical wavelength division multiplexing transmission system

A technology of transmission system and monitoring device, which is applied in the field of monitoring of optical wavelength division multiplexing transmission system, and can solve problems such as inability to provide system performance monitoring

Active Publication Date: 2014-12-03
CHINA TELECOM CORP LTD
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Problems solved by technology

Although these parameters improve the accuracy of the performance monitoring of the wavelength optical channel to a certain extent, these methods usual...

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  • Monitoring device and method for optical wavelength division multiplexing transmission system
  • Monitoring device and method for optical wavelength division multiplexing transmission system
  • Monitoring device and method for optical wavelength division multiplexing transmission system

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Embodiment Construction

[0055] 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. It should be noted that the relative arrangement of components and steps set forth in these embodiments does not limit the scope of the invention unless specifically stated otherwise.

[0056] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as any limitation of the invention, its application or uses. 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.

[0057] Techniques, methods and devices known to those of ordinary skill in the relevant art may not...

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Abstract

The invention discloses a monitoring device and method for an optical wavelength division multiplexing transmission system. The monitoring device includes a wavelength optical channel error rate acquisition unit used for acquiring error rates of n wavelength optical channel routes; a group optical channel optical power acquisition unit used for acquiring group optical channel optical powers of group optical channel routes; a wavelength optical channel optical power acquisition unit used for acquiring wavelength optical channel optical powers of the wavelength optical channel routes; a wavelength optical channel error rate monitoring unit used for sending alarm information of a wavelength optical channel error rate when the error rate exceeds a preset error rate threshold; and a group optical channel optical power motoring unit and a wavelength optical channel optical power monitoring unit respectively used for monitoring the group optical channel optical powers and the wavelength optical channel optical powers. The monitoring device and method for the optical wavelength division multiplexing transmission system provide whole-course whole-network monitoring of optical channel performance of the optical wavelength division multiplexing transmission system.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a monitoring method for an optical wavelength division multiplexing transmission system. Background technique [0002] Optical wavelength division multiplexing (WDM) transmission technology can make full use of the bandwidth potential of optical fiber transmission media to meet the requirements of communication network bandwidth in the development of information society, making WDM technology the most widely used optical fiber transmission technology at present. According to my country's relevant industry standards and the current status of operator network construction and maintenance work, the performance and fault monitoring of WDM transmission systems mainly depend on the optical signal-to-noise ratio (OSNR) parameters. However, with the increase of the single-wavelength rate to 40Gbit / s and the application of new node devices such as reconfigurable optical add-drop...

Claims

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Application Information

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IPC IPC(8): H04B10/07H04L1/00H04J14/02
Inventor 李俊杰张成良张淑建霍晓莉
Owner CHINA TELECOM CORP LTD
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