Miniaturized CWDM passive optical module

Abstract

The invention is suitable for the field of optical devices, and provides a miniaturized CWDM passive optical module which comprises a module box, wherein an AWG chip and an FA optical fiber array assembly connected with the AWG chip are arranged in the module box, an optical fiber adapter is arranged at one end of the module box, the input end of the optical fiber adapter extends into the module box and is connected with the output end of the FA optical fiber array assembly through a 180-degree bypassing optical fiber, the other end of the module box is connected with a plurality of output optical fibers, and the output ends of the plurality of output optical fibers extend into the module box and are connected with the output end of the FA optical fiber array assembly. The AWG chip and the FA optical fiber array assembly are arranged in the module box, MUX wave combining and DEMUX wave dividing functions can be achieved in a compatible mode, the optical fiber adapter is adopted for outputting optical signals, meanwhile, the small-size module box is adopted for packaging, the whole CWDM assembly is effectively protected, and the practical safety is improved.

Description

technical field [0001] The invention belongs to the field of optical devices, and in particular relates to a miniaturized CWDM passive optical module. Background technique [0002] Coarse Wavelength Division Multiplexing (CWDM) is a low-cost WDM transmission technology for the access layer of the metropolitan area network. Wavelength division multiplexing, demultiplexing a beam of incident light into several beams of different wavelengths of light, or multiplexing several beams of different wavelengths into one beam of outgoing light. [0003] Currently on the market, the CWDM components used in the optical communication 100G active optical module adopt the FA-coupled AWG chip solution with Receptacle (fiber optic adapter), and its MUX multiplexer component (Multiplexer optical multiplexer), DEMUX demultiplexer component ( Demultiplexer (optical demultiplexer) and the back-end chip adopt different connection methods, which are not compatible, and the production difficulty a...

AI Technical Summary

Problems solved by technology

[0003] Currently on the market, the CWDM components used in the optical communication 100G active optical module adopt the FA-coupled AWG chip solution with Receptacle (fiber optic adapter), and its MUX multiplexer component (Multiplexer optical multiplexer), DEMUX demultiplexer component ( Demultiplexer (optical demultiplexer) and the back-end chip are connected in different ways, which is not compatible, the production difficulty and cost are high, and there is no external packaging box protection, and the use safety is low

[0004] Another type of BOX module used in the 100G active optical module on the market, the Receptacle and the BOX module box adopt a welding process, and use a PCBA patch flexible board to output electrical signals, which is easy to affect the output of electrical signals. Reliability is worrying

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