Collocating OADM apparatus for implementing flexile wavelength scheduling

Abstract

The invention discloses a ROADM device for realizing flexible wavelength dispatches, which comprises a one-to-n directional OPA which is used to amplify optical signals from the corresponding direction, a one-to-n directional coupler on the circuit direction, which is used to divide amplified optical signals into n+1 parts and respectively output the amplified optical signals into a lower path unit and a one-to-n directional WSS, the lower path unit which is used to select, tune, filter and / or receive the amplified optical signals, an upper path unit which is used to generate the optical signals with various wavelengths and respectively output the optical signals with various wavelengths to the one-to-n directional WSS, the one-to-n directional WSS which is used to select the optical signals which are input into the one-to-n directional WSS and output the optical signals to an OBA on the corresponding direction after the optical signals are co-waved, and a one-to-n directional OBA which is used to amplify the optical signals of the WSS from the corresponding direction, wherein the lower path unit comprises a one-to-n directional lower path coupler, a one-to-n directional lower path optical switch, a tunable filter and a receiving unit.

Description

technical field [0001] The invention relates to the field of optical communication, and more specifically relates to a configurable optical add-drop multiplexing device for realizing flexible wavelength scheduling. Background technique [0002] At present, Dense Wavelength Division Multiplexing (DWDM) equipment has been widely used in backbone networks to local and metropolitan core networks. , which will eventually be applied to trellis and mesh networks. The business type transitions from the circuit-switched business dominated by TDM business to the data business dominated by IP. Due to the uncertainty of business development and the increase in the difficulty of early forecasting, there are requirements for intelligent equipment. It is hoped that when the network topology and business distribution change, the business scheduling function can be quickly and flexibly realized to adapt to networking and business Changes in distribution. [0003] Similar to the implementa...

AI Technical Summary

Problems solved by technology

However, since this method has one drop wavelength selection and distribution unit, optical signals of the same wavelength cannot be dropped in different directions; and this method only has one add multiplexing and distribution unit, and optical signals of the same wavelength cannot be added from the node

Due to this shortcoming, this method is not practical in real network

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