Optical cross line device supporting optical multiplexing section protection function

Abstract

The invention discloses an optical cross line device supporting an optical multiplexing section protection function. The optical cross line device comprises a wavelength selection switch, an optical switch, a first optical amplification unit and a second optical amplification unit, internal output ports of the first optical amplification unit and the second optical amplification unit are connected with an input port of the optical switch, internal input ports of the first optical amplification unit and the second optical amplification unit are connected with an output port of the optical switch, and an internal output port of the wavelength selection switch is connected with the input port of the optical switch. And the internal input port of the wavelength selection switch is connected with the output port of the optical switch. The device is combined and adopted in different nodes, so that the protection function of two groups of two-fiber bidirectional optical multiplexing sections is realized, and the device can be widely applied to a common working scene and an optical cross networking scene when the attenuation difference of a protection line is relatively large.

Description

technical field [0001] The invention relates to the field of physics, in particular to optical communication technology, in particular to an optical cross circuit device supporting the protection function of an optical multiplexing section. Background technique [0002] At present, optical cross-connect devices based on wavelength selective switches (WSS) and optical backplanes have been widely used. Among them, optical backplanes generally use optical fiber weaving technology to realize optical cross-connection; wavelength selective switches are based on wavelength screening and optical switching functions. Routing to specific wavelength signals. However, the above-mentioned optical cross-connection equipment lacks the ability to protect the multiplexed signal output by the line side, and an external protection device is required to realize optical line protection or optical multiplex section protection during application; the protection strategies of other devices are only...

AI Technical Summary

Problems solved by technology

However, the above-mentioned optical cross-connection equipment lacks the ability to protect the multiplexed signal output by the line side, and an external protection device is required to realize optical line protection or optical multiplex section protection during application; the protection strategies of other devices are only for unidirectional service level Channel protection, the lack of an overall protection mechanism for the combined signal on the line side, the security of its networking is greatly restricted

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