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Sunlight optical fiber light guide coupler

A coupler and optical fiber technology, which is applied in the field of sunlight collection and lighting transmission, can solve the problems affecting the coupling efficiency of the system and the coupling point performance, and achieve the effects of easy processing and production, long service life and stable temperature performance

Active Publication Date: 2015-07-22
SHANTOU HIGH TECH ZONE AOXING OPTICAL COMM EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once sunlight is not coupled into the silica fiber, a large amount of heat will be generated on the end face of the fiber and the coating layer, which will affect the coupling efficiency of the system and the performance of the coupling point

Method used

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  • Sunlight optical fiber light guide coupler
  • Sunlight optical fiber light guide coupler

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Embodiment Construction

[0017] The present invention is further specifically described below by way of examples.

[0018] It includes an introduction section 1 and a transmission section 2, the introduction section is in the shape of a truncated cone, the large end of the truncated table is the light input end, and the small end of the circular truncated table is the light output end, the introduction section is composed of fluorine-doped quartz glass, and the refractive index n1 is 1.3. The diameter D1 of the large end of the round table at the light-incoming end of the introduction section is 4 mm, the diameter D2 of the small end of the round table at the light-out end is 1 mm, and the axial length L1 of the introduction section is 6 mm. The transmission section is cylindrical, and one end thereof is welded and coupled with the small end of the circular platform of the introduction section. The transmission section is composed of a germanium-doped quartz glass substrate, and the refractive index n2...

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Abstract

The invention relates to a sunlight optical fiber light guide coupler. The sunlight optical fiber light guide coupler comprises a leading-in section and a transmission section, the leading-in section is of a circular truncated cone shape, the large end of a circular truncated cone is a light inlet end, the small end of the circular truncated cone is a light outlet end, the leading-in section is formed by doped quartz glass, the refractive index n1 is 1.2-1.4, the transmission section is cylindrical, one end of the transmission section is coupled with the small end of the circular truncated cone of the leading-in section, the transmission section is formed by a doped quartz glass base body, and the refraction index n2 of the doped quartz glass base body is 1.45-1.52. The sunlight optical fiber light guide coupler has the advantages that the coupler is installed between sunlight and light guide optical fibers, converged sunlight can be efficiently coupled to the light guide optical fibers in a low loss mode, and then sunlight can be collected and used for illumination; the doped quartz glass, specific shapes and coating layers are adopted, and the coupler is high in coupling efficiency, stable in temperature performance, long in service life, good in high-temperature resistance and aging resistance, and especially suitable for being coupled with the quartz glass and the light guide optical fibers; the coupler is simple in structure and easy to machine and manufacture.

Description

technical field [0001] The invention relates to a sunlight fiber optic light-guiding coupler, specifically designs a coupling device that collects sunlight and couples it to a quartz fiber for flexible transmission, and belongs to the technical field of sunlight collection and lighting transmission. Background technique [0002] Sunlight, that is, sunlight, is an inexhaustible natural light source in nature, and it is also a kind of green energy. So far, human beings' utilization of sunlight energy is still at a relatively initial stage. Effectively collect, utilize and transport sunlight to places that require lighting and have very strict safety requirements, such as weapon and ammunition depots, oil depots, mines, gas rooms, and other flammable and explosive places and places that cannot be directly illuminated. In buildings, it is of great significance to solve the lighting problems of the above places. How to improve the coupling efficiency of sunlight is also an impor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00F21S11/00F21V8/00
Inventor 涂峰张树强刘非古杨
Owner SHANTOU HIGH TECH ZONE AOXING OPTICAL COMM EQUIP
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