Multi-wavelength wave combining optical module

Abstract

The invention discloses a multi-wavelength wave combining optical module, belongs to the technical field of optical fiber communication, and can solve the problems that an existing multi-wavelength wave combining optical module is high in cost and poor in wave combining effect. The optical module comprises a first signal group and a second signal group, and the first signal group and the second signal group respectively comprise multiple paths of optical signals with different wavelengths; the wavelength of the optical signal with the longest wavelength in the first signal group is smaller than that of the optical signal with the shortest wavelength in the second signal group; a first multiplexing unit is used for synthesizing multiple paths of optical signals in the first signal group into a first multiplexing signal; a second multiplexing unit is used for synthesizing multiple paths of optical signals in the second signal group into a second multiplexing signal; a first wave combining prism comprises a first surface and a second surface, and the second surface is used for reflecting a second multiplexing signal to the first surface; the first surface is used for transmitting a first multiplexing signal and reflecting a second multiplexing signal to form a third multiplexing signal. The optical module is used for multi-wavelength wave combination.

Description

technical field [0001] The invention relates to an optical module for multi-wavelength multiplexing, which belongs to the technical field of optical fiber communication. Background technique [0002] With the continuous development of optical fiber communication technology, the demand for transmission capacity of a single optical fiber is also increasing. Wavelength Division Multiplexing (Wavelength Division Multiplexing, WDM) technology is one of the key technologies for improving transmission capacity. A WDM system can multiplex multiple optical signals of different wavelengths. [0003] At present, the existing multi-wavelength multiplexing optical modules are generally as follows figure 1 As shown, after the optical signal 04 is reflected by the wavelength division multiplexing membrane 05, it is transmitted through the wavelength division multiplexing membrane 06, and is combined with the optical signal 03 reflected by the wavelength division multiplexing membrane 06 ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an optical module for multi-wavelength multiplexing, which can solve the problems of high cost and poor multiplexing effect of existing multi-wavelength multiplex optical modules

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