TOSA, BOSA, optical module and optical network equipment

Abstract

The embodiment of the invention discloses a TOSA, a BOSA, an optical module and optical network equipment. The overall size of an optical transceiver assembly can be smaller. The TOSA comprises a first light emitter, a second light emitter, a reflection structure, a first wave combining structure, an integrated light transmission part and a packaging assembly. The integrated optical transmission part is provided with a first lens part, a second lens part, a first fixing part used for placing a reflection structure, and a second fixing part used for placing a first wave combining structure. Thepackaging assembly is provided with a light outlet. The first lens part is used for coupling a first light signal from the first light emitter to the light reflecting structure, wherein the reflection structure reflects a first optical signal to the first wave combining structure, the second lens part is used for coupling a second optical signal from the second light emitter to the first wave combining structure, and the first wave combining structure is used for combining the first optical signal reflected by the reflection structure and the second optical signal transmitted by the second lens part and outputting the combined signal to the light outlet.

Description

technical field [0001] The present application relates to the field of optical communication, and in particular to a TOSA, BOSA, optical module and optical network equipment. Background technique [0002] Currently, large-scale deployment of passive optical network (PON), including Ethernet passive optical network (EPON) and Gbit passive optical network (Gig-bitpassive optical network, GPON), With the upgrade of network bandwidth, the network to be deployed in the next generation is 10G-EPON and 10G-GPON. In order to solve the coexistence problem of EPON and GPON and 10G-EPON and 10G-GPON, taking GPON as an example, an optical line terminal (OLT) can use a built-in wavelength division multiplexing (wavelength division multiplexing, WDM) device (such as combined Multiplexing and multiplexing the uplink and downlink wavelengths of GPON and 10G-GPON, so that the GPON optical module and the 10G-GPON optical module are combined into one, and a combined (combo) optical module is ...

AI Technical Summary

Problems solved by technology

[0004] However, in this design method, since two groups of TOSA and ROSA are used, and each group of TOSA and ROSA corresponds to optical signals of different wavelengths, the number of WDM devices (multiplexers or demultiplexers) that need to be installed in the square housing is relatively large. The overall optical path of optical signal transmission in BOSA is longer, resulting in a larger overall size of BOSA manufactured according to this design method

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