Novel ultraviolet transmission optical fiber and preparing method thereof

A technology for transmitting optical fiber and ultraviolet light, which is applied in the direction of cladding optical fiber, glass manufacturing equipment, glass fiber products, etc. It can solve the problems of great difference in material properties, easy to break bonds, and reduce the ultraviolet transmission performance of optical fiber, so as to reduce costs and Effects of time, performance enhancement, and increased UV transmission performance

Active Publication Date: 2009-04-22
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

Due to the great difference in the properties of the materials on both sides of the interface during the wire drawing process, the bond is easily broken during the wire drawing process to form defects, which will reduce the UV transmission performance of the optical fiber.

Method used

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  • Novel ultraviolet transmission optical fiber and preparing method thereof
  • Novel ultraviolet transmission optical fiber and preparing method thereof
  • Novel ultraviolet transmission optical fiber and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: (sag inner cladding Δ=-1.0%, thickness is 12 μm)

[0038] In this example, using figure 2 The PCVD process of the optical fiber is set according to the refractive index profiles of the pure silica core layer and the doped depressed inner cladding, and the refractive index difference of the depressed inner cladding of the optical fiber is -1.0%. First deposit the outer cladding and inner cladding, then deposit the core layer, and dope fluorine during the process of depositing the sunken inner cladding; melt and shrink the deposited liner to obtain a preform, and draw the preform to obtain an optical fiber. The refractive index change value of the inner cladding is -1.0%, the NA value of the optical fiber core layer relative to the sunken inner cladding is 0.22, and the thickness of the sunken inner cladding is 12 μm.

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Abstract

The invention relates to a novel ultraviolet transmission optical fiber and a preparation method thereof. The section structure of the ultraviolet transmission optical fiber comprises a pure silicon quartz fiber core layer, a fluorine-doped quartz depressed inner cladding layer and a pure silicon quartz outer cladding layer, a changing gradient refractive index structure is adopted on two transition layers between the depressed inner cladding layer and the pure quartz core layer as well as between the depressed inner cladding layer and the outer cladding layer. The optical fiber can be used in windows below 600nm, has lower attenuation in ultraviolet wavelength windows, and can keep stable transmission characteristics during use. The optical fiber has extensive application in the fields of industrial application, optical fiber sensing, optical fiber medical treatment and the like.

Description

technical field [0001] The invention relates to a transmission optical fiber and a preparation method thereof in the fields of industrial application, optical fiber sensing and medical treatment, in particular to a novel ultraviolet light transmission optical fiber and a preparation method thereof. The optical fiber can be used in the window below 600nm, has low attenuation in the ultraviolet wavelength window, and can maintain its stable transmission characteristics during use. The optical fiber is widely used in industrial applications, optical fiber sensing, and optical fiber medical fields. Background technique [0002] Ultraviolet laser has the characteristics of short wavelength, high energy, no thermal effect, and direct bond breaking when interacting with substances. Using optical fiber to transmit ultraviolet laser can introduce ultraviolet laser to long-distance complex work targets, greatly expanding the application range of ultraviolet laser. For example, with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/036C03B37/018C03B37/012
CPCC03B2201/02C03B2201/12C03B2203/26C03B2203/23C03B37/01807Y02P40/57
Inventor 涂峰邓涛杨晨
Owner SHANTOU HIGH TECH ZONE AOXING OPTICAL COMM EQUIP
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