bidirectional optical transmission subassembly

Abstract

A bidirectional light transmission subassembly comprises a substrate, a multi-core connecting piece, a first light output module, a second light output module, a light reception module, an output circuit board and a reception circuit board. The substrate includes a first side, a second side and a bearing surface. The multi-core connecting piece is placed at the first side. The first light output module is placed on the substrate and coupled to the multi-core connecting piece via an output fiber. The second light output module is placed at the bearing surface and coupled to the multi-core connecting piece via another output fiber. The distance from the optical axis of the first output module to the bearing surface is the same with that from the optical axis of the second output module to the bearing surface, and the optical axis of the first output module is close to that of the second output module. The light reception module is placed on the substrate and coupled to the multi-core connecting piece via a reception fiber. The output circuit board is placed at the second side and electrically connected with the first and second light output modules. The reception circuit board is placed at the second side and electrically connected with the light reception module.

Description

technical field [0001] The invention relates to an optical communication component, in particular to a bidirectional optical transmission subassembly. Background technique [0002] At present, the optical fiber network that has been widely used in long-distance backbone networks in many countries around the world is mostly systems that provide 2.5Gbps (Giga bit per second), 5Gbps, or 10Gbps. Among them, optical transceiver devices play an important role. Furthermore, with the advancement of technology, optical transceiver devices have developed from the earlier 155Mbps, 622Mbps, 1Gbps to the current popular 10Gbps, 25Gbps, 40Gbps. In the near future, speeds above 100Gbps are expected to be achieved. [0003] However, the data transmission capacity of optical fiber communication devices has gradually become insufficient. Therefore, there has been a trend to further increase the data transmission capacity of the optical fiber communication device. [0004] Under the existi...

AI Technical Summary

Problems solved by technology

However, this method requires multiple independent optical transceiver modules, which will take up more equipment slots, thus requiring more equipment space

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