Wavelength division multiplex light receiving assembly

Abstract

The invention discloses a wavelength division multiplex light receiving assembly. The wavelength division multiplex light receiving assembly comprises a plane light waveguide integrated wavelength division multiplex chip (1), a light detector chip array (2) and an optical fiber assembly (3), wherein a coupling port (31) of the optical fiber assembly (3) is coupled and stuck with an input end of the plane light waveguide integrated wavelength division multiplex chip (1); the light detector chip array (2) is located under an output end face (12) of the plane light waveguide integrated wavelength division multiplex chip; light sensitive faces (21, 22, 23, 24...) of the light detector chip array are correspondingly aligned with output waveguides (121, 122, 123, 124...) of the plane light waveguide integrated wavelength division multiplex chip (1); and an included angle of 40-50 degrees is formed between the output end face (12) of the plane light waveguide integrated wavelength division multiplex chip and a waveguide face (13), so that the output end face (12) can be used for outputting light reflection parallel to the waveguide face (13) from the waveguide face to be coupled with the light sensitive faces of the light detector chip array. According to the wavelength division multiplex light receiving assembly, the solution multiplexing of a light signal is finished by the plane light waveguide integrated wavelength division multiplex chip and the output end face of the plane light waveguide integrated wavelength division multiplex chip is used as a light reflection face, so that the optical fiber assembly is used as a light input channel. According to the wavelength division multiplex light receiving assembly, a light path structure is extremely simplified, the stability of a light path is enhanced and the coupling packaging difficulty is reduced, so that the integration and low cost of the wavelength division multiplex light receiving assembly are realized.

Description

technical field [0001] The invention relates to an optical receiving component, in particular to a wavelength division multiplexing optical receiving component, and belongs to the field of optical communication. Background technique [0002] Data centers and high-performance computing applications place increasingly stringent requirements on the transmission rate and package size of optical components. In response to this demand, the IEEE organization has specially formulated the IEEE802.ba specification, which specifies the 40G and 100G Ethernet transmission standards. Using CWDM / Lan-WDM wavelength division multiplexing technology to achieve 40G / 100G transmission rate and optical components that meet specific package sizes is a huge challenge in the current optical communication field. [0003] The optical path structure of the existing CWDM / Lan-WDM wavelength division multiplexing optical receiving components is mostly: after the light enters the input port, it is collima...

AI Technical Summary

Problems solved by technology

[0006] To sum up, the existing wavelength division multiplexing optical receiving components use spatial optical filters to realize wavelength demultiplexing; components such as optical input ports and lenses are used as optical input channels, resulting in an extremely complex optical path structure, which is very difficult for packaging. Craftsmanship poses great challenges

However, the advantages of the existing planar optical waveguide integrated wavelength division multiplexing chip and optical fiber components are not reflected in the wavelength division multiplexing optical receiving components

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