Single fiber bi-directional BOSA optical structure used for high-speed transmit-receive system

Abstract

The invention discloses a single fiber bi-directional BOSA optical structure used for a high-speed transmit-receive system. A double-face discrete structure is employed, a central partition in a housing is employed to separate a transmitting terminal TOSA optical structure from a receiving terminal ROSA optical structure. A wavelength division multiplexing light composition structure in the TOSA optical structure and a wavelength division multiplexing optical structure in the ROSA optical structure are employed to carrying out light composition and light splitting on light beams, the TOSA optical structure and the ROSA optical structure share a refractive PBS combination prism, a light splitting PBS combination prism, and an optical port collimator, the light beam emitted from the optical port collimator is refracted by the refractive PBS combination prism towards the lower layer, and the fact that the TOSA light beam is separated from the ROSA light beam is achieved. By employing the above design, single fiber bi-directional transmission is achieved by means of one housing and one optical port, and therefore the single fiber bi-directional BOSA optical structure is advantaged by being simple in structure, low in insertion loss, relatively-high in coupling efficiency, easy to assemble and debug and relatively-small in size, and being capable of saving the cost, and has a good application prospect.

Description

technical field [0001] The invention relates to an optical transceiver module in the optical fiber communication technology, in particular to a single-fiber bidirectional BOSA optical structure for a 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 tran...

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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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