Method and controller for wavelength division multiplexing optical network expanding adjustment and detection

Abstract

The invention discloses a method and a controller for wavelength division multiplexing optical network expanding adjustment and detection and belongs to the field of optical communication. The method comprises that initial power of an added wavelength business is calculated according to a preset principle and one or more wavelength businesses are newly added according to the initial power; power of each newly added wavelength business in the process of transmission is detected and target power of each newly added wavelength business is calculated respectively according to detection values and the initial power; end-to-end property of each existing wavelength business and end-to-end property of each newly added wavelength business are calculated when each newly added wavelength business reaches the target power; and when each newly added wavelength business respectively reaches the target power and the end-to-end property of each existing wavelength business and the end-to-end property of each newly added wavelength business respectively satisfy the lowest threshold requirement, the power of each newly added wavelength business is adjusted. According to the method and the controller for the wavelength division multiplexing optical network expanding adjustment and detection, the newly added wavelength business can not exert influence on property of each existing wavelength business in a network and efficiency of adjustment and detection can be improved effectively.

Description

technical field

[0001] The invention relates to the field of optical communication, in particular to a method and controller for capacity expansion and commissioning of a wavelength division multiplexing optical network. Background technique

[0002] Optical signals in WDM (Wavelength Division Multiplex) optical networks can be multiplexed, transmitted, amplified, routed, and restored in the optical domain, making WDM optical networks a hot research topic in the field of optical communications. According to whether the network elements in the WDM optical network can perform electrical processing on optical signals, the WDM optical network can be divided into two types: Transparent (transparent) optical network and Opaque (opaque) optical network. For transparent optical networks, optical signals are always transmitted in the form of optical signals during transmission from the source network element to the sink network element, and signal regeneration, switching, and wavelen...

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