Bidirectional working optical-electrical-optical repeater

Abstract

To solve the problems that OEO (Online Editing Object) repeaters in the prior art only perform unidirectional work, or cannot adapt to GPON (Gigabit-Capable PON) / EPON (Ethernet Passive Optical Network) utilization requirements due to completion of regenerative amplification of downlink continuous optical signals or completion of regenerative amplification of uplink sudden optical signals, the invention provides a bidirectional working optical-electrical-optical repeater which comprises two optical wavelength division multiplexers, two photoelectric receivers and two electro-optical transmitters; the optical wavelength division multiplexer 1 is connected with an optical network unit OLT (Optical Line Terminal) optical interface, the photoelectric receiver 1 and the electro-optical transmitter 2; and the optical wavelength division multiplexer 2 is connected with the OLT ONU (Optical Network Unit) optical interface, the photoelectric receiver 1 and the electro-optical transmitter 2. The bidirectional working optical-electrical-optical repeater provided by the invention has the advantages that the regenerative amplification of downlink continuous 2.5 Gbps optical signals and uplink sudden 1.25Gbps optical signals can be finished simultaneously; optical performance and electrical performance satisfy GPON / EPON optical network standards; and the bidirectional working optical-electrical-optical repeater can be widely applied to GPON / EPON optical networks.

Description

field of invention [0001] The invention relates to an optical signal repeater in a communication system, in particular to an optical-electrical-optical repeater working in two directions in the communication system. Background technique [0002] With the continuous development of communication technology, the digital subscriber line DSL broadband access method transmitted by copper wire can no longer meet the application development requirements, and the passive optical network PON (hereinafter referred to as PON) with high bandwidth, high reliability and almost no maintenance cost It has gradually become the mainstream technology solution for broadband access and has become a recognized development direction in the industry. All countries in the world have implemented the strategy of "retiring copper and advancing light" in the field of communication and services, and formed a fiber-to-the-home FTTH industry chain. However, the transmission of optical signals in optical fib...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that most of the existing OEO repeaters can only work in one direction, or complete the regeneration and amplification of downlink continuous optical signals, or complete the regeneration and amplification of uplink burst optical signals, and cannot meet the requirements of GPON / EPON optical networks, etc., The invention proposes a two-way working photoelectric optical repeater

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