Optical module with external optical receiving device

Abstract

The invention relates to the technical field of optical communication, in particular to an optical module with an external optical receiving device. The optical module comprises a light emitting assembly, a light receiving assembly, a shell and a control unit, wherein the light emitting assembly is arranged in the shell, and the light emitting assembly and the light receiving assembly are electrically connected with the control unit; the light emitting assembly comprises a laser unit, an optical multiplexer and a first adapter which are sequentially arranged in an optical axis direction, and the optical multiplexer is used for emitting light emitted by the laser unit into the first adapter; and the light receiving assembly comprises a second adapter, a light conduction piece, an array waveguide grating and a photoelectric detector unit which are sequentially arranged in the optical axis direction, the second adapter is used for inputting external light to the array waveguide grating through the light conduction piece, and the array waveguide grating converts input external light into a plurality of light splitting signals and then emits the light splitting signals into the photoelectric detector unit. According to the invention, the light emitting assembly and the light receiving assembly are separated, the layout space of the optical module is enlarged, and process difficulty is reduced.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical module with an external optical receiving device. Background technique [0002] The 100G optical module is an optical module product born to adapt to the trend of the network market gradually developing from 10G to 40G and 100G, with a transmission rate of 100G. 100G optical modules play a vital role in building 100G network systems. [0003] With the development of the optical communication industry, the market demand for 100G optical modules continues to expand. The current mainstream 100G optical module is a transmission module based on single-mode coarse wavelength division multiplexing technology. The 100G optical module is LR4 type and uses 4 channels of 25Gbps signals. The optical fiber transceiver adopts single-mode laser light source, adopts LC duplex interface, and each optical fiber supports signal transmission of 4 long-wave bands. [0004]...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing optical modules, the light-emitting components and the light-receiving components are built-in and packaged in the casing, which makes the design and layout of the signal circuit extremely complicated, high in cost, and has extremely high requirements for process assembly, which is not easy to maintain and handle

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