An all-optical convergence system and device based on joint modulation

Abstract

An embodiment of the present invention provides an all-optical aggregation system and device based on joint modulation, the system including: a first access network, a backbone network, a de-aggregation device, a second access network, and an all-optical aggregation device based on joint modulation ; Wherein, one end of the first access network is connected to one end of the all-optical convergence device, the other end of the all-optical convergence device is connected to one end of the backbone network, the other end of the backbone network is connected to one end of the de-convergence device, and the other end of the de-convergence device is connected to the second access network. The all-optical converging device is used to receive the multi-channel electrical signals output by the first access network, load the information carried by the multi-channel electrical signals onto the optical signals, and aggregate the optical signals to obtain one aggregated optical signal, and convert the aggregated optical signals Enter the backbone network. The backbone network is used to transmit the aggregated optical signals to the de-aggregation device. The de-aggregation device is used to receive the aggregated optical signal output by the backbone network, convert the aggregated optical signal into multiple electrical signals, and transmit the converted multiple electrical signals to the second access network.

Description

technical field [0001] The present invention relates to the technical field of signal transmission, in particular to an all-optical convergence system and device based on joint modulation. Background technique [0002] From the perspective of signal transmission, the communication network can be divided into a backbone network and an access network. Among them, the backbone network, as a bearer network, plays an important role in the network connection between cities, and the access network is a network connecting the backbone network and user terminals. The signal transmission rate of the backbone network is high, while the signal transmission rate of the access network is much lower than that of the backbone network. Therefore, before transmitting the signal of the access network to the backbone network, it is necessary to increase the signal transmission rate of the access network first, and then increase the signal transmission rate of the access network. The final sign...

AI Technical Summary

Problems solved by technology

In the traditional solution, the electrical signal is converted into "optical-electrical-optical" to synthesize multiple low-speed signals into one high-speed signal and transmit it to the backbone network. However, this method requires multiple conversions between optical signals and electrical signals to realize The process is complicated, resulting in high transmission delay

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