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A method for cutting the end face of a thin-walled casing beam combiner

A technology of cutting method and casing method, which is applied in the direction of optical waveguide coupling, etc., can solve the problems that the thin-walled casing cannot be cut and the pressure of the casing cannot be too large, so as to improve the success rate of cutting, improve the quality, and improve the quality. Good results

Active Publication Date: 2021-05-14
SHANGHAI FEIBO LASER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The larger cutting force puts forward higher requirements on the clamping force of the fixture, and the thickness of the casing wall determines that the casing itself cannot bear too much pressure, so the cutting scheme of directly applying stress to the quartz tube is only suitable for thick Fiber bundles made of ferrule with thin walls, which cannot be cut for thin wall ferrules

Method used

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  • A method for cutting the end face of a thin-walled casing beam combiner
  • A method for cutting the end face of a thin-walled casing beam combiner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, the size of the tapered sleeve is 550um / 650um, the size of the fiber: 125um, the size of the fiber cladding: 250um

[0037] After the sleeve method is used to melt and combine the fiber bundles and taper to the target diameter of 125um, the fused tapered fiber bundle is removed from the taper machine. Its structure is as follows figure 1 Shown: 1: Input fiber bundle; 2: Quartz tube; 3: Taper region; 4: Taper waist region; 5: Fiber optic bundle coating ring cut point; 6: Quartz tube cut point; 7: Taper waist cut point.

[0038] Cut off the truncated quartz sleeve 2 at a distance of about 2.0 cm from the inlet sleeve port (to ensure that the input fiber bundle is intact) and move back to the cutting point 5 of the coating layer of the fiber bundle and align ( figure 2 shown), fill the back-moving sleeve with glue and cure, and fill the right sleeve with glue and cure to form the cutting and holding part 8 at both ends. The knife presses and cuts the press...

Embodiment 2

[0041] Embodiment 2, tapered sleeve size 1000um / 1500um fiber size: 400um fiber cladding size: 550um

[0042] After the sleeve method melts and combines the optical fiber bundles to reach the target diameter of 380um, remove the fused tapered optical fiber bundle from the tapering machine. Its structure is as follows figure 1 Shown: 1: Input fiber bundle; 2: Quartz tube; 3: Taper region; 4: Taper waist region; 5: Fiber optic bundle coating ring cut point; 6: Quartz tube cut point; 7: Taper waist cut point.

[0043] Cut off the truncated quartz sleeve 2 at a distance of about 1.5 cm from the end of the sleeve port (to ensure that the input fiber bundle is intact) and move back to the cutting point 5 of the coating layer of the fiber bundle and align ( figure 2 shown), fill the back-moving sleeve with glue and cure, and fill the right sleeve with glue and cure to form the cutting and holding part 8 at both ends. The knife presses and cuts the pressing part 8 to perform tapered...

Embodiment 3

[0045] Embodiment 3, tapered sleeve size 800um / 1200um fiber size: 250um fiber cladding size: 350um

[0046] After the sleeve method melts and combines the optical fiber bundles to reach the target diameter of 600um, remove the fused tapered optical fiber bundle from the tapering machine. Its structure is as follows figure 1 Shown: 1: Input fiber bundle; 2: Quartz tube; 3: Taper region; 4: Taper waist region; 5: Fiber optic bundle coating ring cut point; 6: Quartz tube cut point; 7: Taper waist cut point.

[0047] Pass through a section of glass sleeve from the fiber optic pigtail at the input end, sleeve length: 3cm, inner diameter: 760um, outer diameter: 800um, and move to the cutting point 5 of the coating layer of the optical fiber bundle and align ( figure 2 As shown), fill the inserted sleeve with glue and cure it. At the same time, fill the right sleeve with glue and cure it to form the cutting and holding part 8 at both ends. After curing, select a clamp with a suitab...

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Abstract

The present invention provides an end face cutting method for a thin-walled sleeve bundling device, which specifically includes the following steps: S1: the sleeve method fuses the optical fiber bundle and tapers to a target diameter; S2: squeezes the part of the optical fiber bundle The outer sleeve is aligned with the ring tangent point of the fiber bundle; S3: The sleeve is filled with glue and cured; S4: The fiber is cut at the taper position. The cutting method has good cutting section quality, and uniformly applies tension through the optical fiber bundle, so that the quality of the tapered waist cutting section is improved and the cutting angle is effectively reduced and controllable, and the cutting success rate after the thin-walled casing is tapered is effectively improved.

Description

technical field [0001] The invention relates to the technical field of fiber lasers, in particular to an end face cutting method for a thin-walled casing beam combining device. Background technique [0002] At present, in the process of laser transmission and application, the cutting of the end face of optical fiber and optical fiber device is directly involved, because the quality of the end face of the optical fiber has a great influence on the actual application effect of the optical fiber. In addition to optical fiber end faces with special requirements such as spherical surfaces, inclined surfaces, and taper angles, the most widely used vertical planes of optical fiber end faces, the present invention intends to propose a method for improving the preparation of beam combining device end faces. [0003] After the fiber bundles are fused and combined to taper to the target diameter, they are cut at a specific position in the waist area of ​​the taper to obtain a smooth an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/25
CPCG02B6/25
Inventor 李文涛严超李骁军白云娜谭小妹刘广柏
Owner SHANGHAI FEIBO LASER TECH CO LTD