A 5g fronthaul wavelength division multiplexing module based on optical fiber array and its assembly method

A technology of wavelength division multiplexing and optical fiber array, which is applied in the field of optical fiber communication, can solve the problems that the division and multiplexing modules are difficult to meet the needs, and achieve the effects of compact structure, reduced module volume, and small volume

Active Publication Date: 2022-07-08
MINDU INNOVATION LAB +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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  • A 5g fronthaul wavelength division multiplexing module based on optical fiber array and its assembly method
  • A 5g fronthaul wavelength division multiplexing module based on optical fiber array and its assembly method
  • A 5g fronthaul wavelength division multiplexing module based on optical fiber array and its assembly method

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Experimental program
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Effect test

Embodiment 1

[0044] refer to Image 6 , according to the first embodiment of the present invention, a 5G fronthaul wavelength division multiplexing module based on an optical fiber array includes a first optical fiber array 21 , a first lens 31 , and a first wavelength division multiplexing diaphragm 41 arranged in order from right to left , the second wavelength division multiplexing film 42 , and the first reflection sheet 51 . The first optical fiber array 21 includes a first optical fiber 11 , a second optical fiber 12 , a third optical fiber 13 and a fourth optical fiber 14 . In the first embodiment, the first lens 31 is a self-focusing lens. The first wavelength division multiplexing film 41 , the second wavelength division multiplexing film 42 and the first reflecting film 51 are stacked and pasted on the first lens 31 in sequence, and the first lens 31 and the first fiber array 21 are connected by glue Fixed, the fixed position is a1, a2. The first wavelength division multiplexi...

Embodiment 2

[0050] see Figure 7 , according to the second embodiment of the present invention, a 5G fronthaul wavelength division multiplexing module based on an optical fiber array includes a first optical fiber array 21, a second lens 32, and a first wavelength division multiplexing diaphragm arranged in sequence from right to left 41 , the second wavelength division multiplexing film 42 , the first reflection sheet 51 , and the glass tube 61 . The first optical fiber array 21 includes a first optical fiber 11 , a second optical fiber 12 , a third optical fiber 13 and a fourth optical fiber 14 . In the second embodiment, the second lens 32 is a ball lens. Since the second lens 32 is a ball lens, the first wavelength division multiplexing film 41 cannot be directly attached to the second lens 32, and the glass tube 61 needs to be placed on the second lens 32 first, and then the first wavelength division multiplexing The diaphragm 41 is attached to the surface of the glass tube 61 . T...

Embodiment 3

[0055] see Figure 8 , according to the third embodiment of the present invention, a 5G front-pass wavelength division multiplexing module based on an optical fiber array includes a second optical fiber array 22, a third lens 33, and a first wavelength division multiplexing diaphragm 41 arranged in sequence from right to left , the second WDM film 42 , the third WDM film 43 , the fourth WDM film 44 , the fifth WDM film 45 , and the second reflector 52 . The second optical fiber array 22 includes a first optical fiber 11 , a second optical fiber 12 , a third optical fiber 13 , a fourth optical fiber 14 , a fifth optical fiber 15 , a sixth optical fiber 16 , and a seventh optical fiber 17 . In the third embodiment, the third lens 33 is a self-focusing lens. The first, second, third, fourth, and fifth wavelength division multiplexing films and the second reflection film 52 are stacked and fixed on the third lens 33 in turn, and the third lens 33 and the second optical fiber arra...

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Abstract

The invention relates to a 5G front transmission wavelength division multiplexing module based on an optical fiber array and an assembly method thereof, comprising an optical fiber array, lenses, first and second wavelength division multiplexing diaphragms, and reflection sheets arranged in sequence from right to left. The first and second wavelength division multiplexing diaphragms and the reflective sheet are stacked and pasted on the lens in turn, and the lens and the optical fiber array are connected and fixed by glue. It is characterized in that according to the principle of optical system lens imaging spherical aberration, a structure based on optical fiber array, wavelength division multiplexing film and reflection sheet is superimposed and pasted on a single lens to realize the function of multi-wavelength wavelength division multiplexing and demultiplexing. Therefore, the 5G fronthaul wavelength division multiplexing module based on the optical fiber array proposed by the present invention has the advantages of flexible configuration, very compact structure, ultra-small volume, low cost, etc., suitable for limited base station space, convenient for 5G network equipment room and optical modules in the base station Applications.

Description

technical field [0001] The present 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 assembling method thereof in the technical field of optical fiber communication. Background technique [0002] Due to the rapid development of optical fiber communication, with the increase of transmission capacity requirements, it is directly required to maximize the use of the width of optical fibers. The 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. One of the most effective solutions to increase optical fiber communication capacity. Therefore, it has been widely used in the current optical communication network. As the application of optical fiber networks becomes more and more popular, especia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/293G02B6/32
CPCG02B6/293G02B6/2938G02B6/29389G02B6/322G02B6/32
Inventor 蒋友山吴玉霞
Owner MINDU INNOVATION LAB
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