A single-fiber bidirectional bosa structure

Abstract

The invention discloses a single-fiber bidirectional BOSA structure. The single-fiber bidirectional BOSA structure comprises a packaging housing, a TOSA, an ROSA, and a light transmit-receive integrated optical structure. The TOSA comprises a light emitting group and a wavelength division multiplexing structure, and the ROSA comprises a light receiving group and a wavelength division de-multiplexing structure; one end of the housing is provided with an optical interface, and optical signals received by the optical interface are emitted to the wavelength division de-multiplexing structure of the ROSA through the light transmit-receive integrated optical structure; signal light emitted by the TOSA, after light combination through the wavelength division multiplexing structure, is transmitted to the optical interface through the light transmit-receive integrated optical structure, and the optical interface outputs the signal light emitted by the TOSA; and the TOSA, the ROSA and the light transmit-receive integrated optical structure are packaged in the housing. According to the invention, the structure is used for a four-channel high-speed transmit-receive system, uplink and downlink transmission is carried out directly on one fiber, external devices or equipment is unnecessary, the system structure is greatly simplified, the operation cost is decreased, the assembling is convenient, the insertion loss is effectively reduced, the coupling efficiency is enhanced, the temperature performance is good, and long-distance transmission of the optical signals is facilitated.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to an optical single-fiber bidirectional BOSA structure for a 4-channel high-speed transceiver system. Background technique [0002] With the increasing development of the communication field, traditional transmission technologies have been difficult to meet the requirements of transmission capacity and speed. In typical application fields such as data centers, network connections, search engines, high-performance computing, etc. Carriers and service providers have deployed a new generation of high-speed network protocols, which require corresponding high-speed transceiver modules to meet high-density and high-speed data transmission requirements. In the high-speed information transceiver system, it is necessary to replace the traditional optical module with a high-density optical module. Using multi-channel optical transceiver technology, more transponders and r...

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Problems solved by technology

[0003] The traditional BOSA structure adopts two separate shells, one of which is the TOSA transmitting module and the other is the ROSA receiving module, which will make the BOSA module bulky and cause a waste of resources, even if the TOSA and ROSA Installed in the same module, it also needs two optical fiber jumper interfaces for transmission and reception. If the transmission and reception need to share one optical fiber, an external circulator needs to be connected, which undoubtedly increases the operating cost and the difficulty of the optical path.

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