Optical network system and adaptive connection device in optical network system

Abstract

The invention provides an optical network system and an adaptive connection device in the optical network system. The system comprises a plurality of ring networks formed by optical transmission network (OTN) devices and a light amplifier. The system also comprises an adaptive connection device. The device comprises multi-level splitters, a plurality of optical switches, and a plurality of, wherein the splitter of each level is connected with one of the light-modulatable attenuator and one of the optical switches, the first-level splitter is connected with the light amplifier, and the first-level splitter is connected with the adjacent second-level splitter through the first optical switch which is connected with the first-level splitter. The light-modulatable attenuator connected with each splitter is connected with one of the optical transmission ring networks in the system correspondingly. The system enables the plurality of ring networks to share an optical subrack and fully utilizes the single light amplifier and a light demultiplexer.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an optical network system and an adaptive connection device in the optical network system. Background technique [0002] In an existing network, an Optical Transport Network (OTN, Optical Transport Network) device will receive line signals from different directions, and there will be several paths in each line using wavelength division multiplexing technology. In order to ensure the normal reception of the line signal, the line signal will pass through an optical amplifier before entering the OTN equipment to amplify the optical power of the line signal to ensure that the line signal is within the normal receiving optical power range. In addition, in order to achieve normal processing of each channel in the line signal, the amplified signal will enter a demultiplexer for demultiplexing, decompose the line signal into channel signals, and then enter the OTN equipment for pr...

AI Technical Summary

Problems solved by technology

[0004] When the upper-layer OTN equipment is connected to multiple OTN ring networks successively, multiple photon racks need to be installed in the equipment room to install optical amplifiers and optical demultiplexers for each ring network. Multiple photon racks will consume equipment room space and power

The optical amplifiers and optical demultiplexers on each ring network only use part of the resources. For example, an 80-wave multiplexer / demultiplexer only multiplexes / demultiplexes 4 to 5 wavelengths, and one can amplify 80 wavelengths. The optical amplifier only amplifies 4 to 5 wavelengths, the resources are not fully utilized, and the waste is serious

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