Optical fiber output end fixing device

A fixed device and output technology, applied in the laser field, can solve the problems of fiber deformation, inability to dissipate heat from the fiber, and limit the power of the optical fiber transmission beam, and achieve the effects of high stable pointing and stable and reliable structure.

Inactive Publication Date: 2014-05-07
TSINGHUA UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fixing device for the output end of the optical fiber to overcome that the existing fixing device for the output end of the optical fiber not only cannot dissipate heat to the optical fiber, but also limits the power of the transmission beam in the optical fiber and will bring deformation to the optical fiber Defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical fiber output end fixing device
  • Optical fiber output end fixing device
  • Optical fiber output end fixing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , figure 2 As shown, the optical fiber output end fixing device provided in this embodiment includes: an optical fiber 1 , a metal film 2 , a metal base 3 and a metal pressing block 4 . The optical fiber 1 is an active fiber doped with ytterbium. The output end of the optical fiber 1 is fused with an end cap 7 . The outer surface of the section of the optical fiber 1 fixed in the device is coated with a metal film 2 , specifically, the metal film 2 is a gold film. A V-shaped groove 6 is formed on the metal base 3, and the optical fiber 1 coated with gold film is placed in the V-shaped groove 6, and the gold film and the metal base 3 are fixed together by welding. The metal pressing block 4 is placed above the optical fiber 1 and has a V-shaped groove 6 thereon. The metal pressing block 4 and the metal base 3 are fixed as a whole by screws. Grooving on the metal base 3 and the metal pressing block 4 can increase the contact area between the metal film...

Embodiment 2

[0030] Such as image 3 , Figure 4 As shown, the optical fiber output end fixing device provided in this embodiment includes: an optical fiber 1 , a metal film 2 , a metal base 3 and a ceramic pressing block 8 . The optical fiber 1 is a passive optical fiber, and the outer surface of a section fixed in the device is covered with a metal film 2, specifically, the metal film 2 is a silver film. The metal base 3 is provided with a U-shaped groove 9, and the optical fiber 1 covered with silver film is placed in the U-shaped groove 9, and the silver film and the metal base 3 are fixed together by bonding. The ceramic compact 8 is placed above the optical fiber 1, and a gasket 10 is placed between the ceramic compact 8 and the optical fiber 1. The gasket 10 can be very thin, soft and elastic, and the gasket 10 can buffer the optical fiber 1 and reduce the pressure. Function: The ceramic pressing block 8 is also provided with a U-shaped groove 9, and the ceramic pressing block 8 a...

Embodiment 3

[0033] Such as Figure 5 , Image 6 As shown, the fiber output end fixing device provided in this embodiment includes: an optical fiber 1 , a metal film 2 and a metal base 3 . The optical fiber 1 is any optical fiber, and the output end of the optical fiber 1 is welded with an end cap 7; the outer surface of a section fixed in the device is coated with a metal film 2, specifically, the metal film 2 is an aluminum film. The metal base 3 is provided with an arc-shaped groove 11, and the optical fiber coated with aluminum film is placed in the arc-shaped groove 11, and the aluminum film 2 and the metal base 3 are fixed together by welding. Grooving on the metal base 3 can increase the contact area between the metal film 2 plated on the outer surface of the optical fiber 1 and the metal base 3 .

[0034] It should be noted that the metal base 3 is used in the embodiment of the present invention to achieve a better heat dissipation effect, but in addition to the metal base 3, it ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of laser, and particularly relates to an optical fiber output end fixing device. The optical fiber output end fixing device comprises a pedestal and a metallic membrane. The pedestal is provided with a groove, and partial or all of an optical fiber is arranged in the groove. At least the surface of the part, which is arranged in the groove, of the optical fiber is coated with the metallic membrane. The optical fiber is fixedly connected with the groove on the pedestal via the metallic membrane on the surface of the optical fiber. The optical fiber output end fixing device is stable and reliable in structure so that the optical fiber is ensured to be stable and non-deformable and mechanically firm, heat radiation of the output end of the optical fiber is facilitated by adopting metal materials to fix the optical fiber, and thus laser beams outputted by the optical fiber are ensured to be high-stability in pointing in space to the largest extent. The device is simple and reliable in structure and convenient to operate so that the device can be widely applicable to various optical fiber laser devices and the laser devices adopting tail fibers to perform output.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a fixing device for ensuring highly stable spatial orientation of an output laser beam from an optical fiber. Background technique [0002] Lasers are widely used in industry, national defense, medicine and other fields. Among many lasers, fiber lasers have attracted increasing attention due to their excellent beam quality, very high power and power density, easy cooling, high stability and reliability, and have been developed rapidly. . However, in the process of fiber laser power expansion, high heat has become a major factor limiting the increase of laser power. Among them, the high heat distribution at the laser output end may sometimes cause the fiber to burn and even be damaged. This is especially obvious when the laser is running for a long time, which seriously affects the operation of the laser. On the other hand, the stability of the fiber laser output is an important...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/042H01S3/02G02B7/00
Inventor 巩马理闫平郝金坪张海涛柳强黄磊
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap