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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, lighting and transmission, can solve problems such as the coupling point performance affecting the coupling efficiency of the system, and achieve the effects of easy processing, long service life, and stable temperature performance.

Active Publication Date: 2013-12-18
SHANTOU HIGH TECH ZONE AOXING OPTICAL COMM EQUIP
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  • Summary
  • 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
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Embodiment Construction

[0017] The present invention will be further described in detail through the following 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 cone is the light entrance end, and the small end of the truncated cone is the light exit end. The introduction section is composed of fluorine-doped silica glass, and the refractive index n1 is 1.3. The diameter D1 of the large end of the light inlet end of the introduction section is 4 mm, the diameter D2 of the small end of the light output end is 1 mm, and the axial length L1 of the introduction section is 6 mm. The transmission section is cylindrical, one end of which is welded and coupled with the small end of the truncated cone of the introduction section. The transmission section is composed of a germanium-doped quartz glass substrate. The refractive index n2 of the germanium-doped quartz glass substrate is 1.4...

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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 daylight optical fiber light guide coupler, and specifically designs a coupling device that is coupled to a quartz optical fiber for flexible transmission by collecting and collecting sunlight, and belongs to the technical field of sunlight collection, illumination and transmission. Background technique [0002] Sunlight, that is, sunlight, is a huge natural light source that is inexhaustible in nature, and it is also a kind of green energy. So far, the utilization of solar energy by human beings is still at a relatively initial stage. Effectively collect, use and transport sunlight to places that require lighting but have very strict safety requirements, such as weapons and ammunition depots, oil depots, mines, gas rooms, and other flammable and explosive places and places that cannot be directly lit. In buildings, it is of great significance to solve the lighting problems in the above-mentioned places. How to improve the coupli...

Claims

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Application Information

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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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