5G forward-transmission wavelength division multiplexing module based on optical fiber array and assembling method of 5G forward-transmission wavelength division multiplexing module

Abstract

The invention relates to a 5G frontward-transmission wavelength division multiplexing module based on an optical fiber array and an assembling method of the 5G forward-transmission wavelength division multiplexing module. The 5G frontward-transmission wavelength division multiplexing module comprises the optical fiber array, a lens, a first wavelength division multiplexing diaphragm, a second wavelength division multiplexing diaphragm and a reflector plate which are sequentially arranged from right to left. The first wavelength division multiplexing diaphragm, the second wavelength division multiplexing diaphragm and the reflector plate are sequentially overlapped, pasted and fixed on the lens, and the lens and the optical fiber array are connected and fixed through glue. The method is characterized in that according to the lens imaging spherical aberration principle of an optical system, the function of multi-wavelength wavelength division multiplexing and demultiplexing is realized by adopting a structure that an optical fiber array, a wavelength division multiplexing diaphragm and a reflector plate are overlapped and pasted on a single lens. Therefore, the 5G forward-transmission wavelength division multiplexing module based on the optical fiber array provided by the invention has the advantages of flexible configuration, very compact structure, ultra-small volume, low cost and the like, is suitable for limited base station space, and is convenient for application of optical modules in a 5G network machine room and a base station.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to a 5G fronthaul wavelength division multiplexing module based on an optical fiber array and an assembly method thereof in the technical field of optical fiber communication. Background technique [0002] Due to the rapid development of optical fiber communication, as the demand for transmission capacity increases, it is directly required to maximize the width of the optical fiber. Optical wavelength division multiplexing technology is to multiplex the optical modulation signals of different optical wavelengths into one optical fiber for transmission according to the optical wavelength. It can also decompose the multi-wavelength optical modulation signals transmitted in the same optical fiber into individual wavelengths and output them separately. It is one of the most effective solutions to increase the capacity of optical fiber communication. Therefore, it ha...

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Problems solved by technology

[0008] Therefore, when the existing 4G base stations are basically full, it is necessary to add 5G equipment, and the existing common collimator structure and the splitting and combining module of the cascade scheme structure are difficult to meet the demand.

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