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Laser beam process method and apparatus thereof

A processing method and processing device technology, which are applied in laser welding equipment, metal processing equipment, optics, etc., can solve the problems of long time and long processing time.

Inactive Publication Date: 2006-07-26
MORITEX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this method is that it takes a long time to perform the scheduled processing
Also, if a pulsed laser is used, although the thermal effect on the fiber can be reduced, another problem arises, that is, the processing time becomes longer

Method used

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  • Laser beam process method and apparatus thereof
  • Laser beam process method and apparatus thereof
  • Laser beam process method and apparatus thereof

Examples

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Comparison scheme
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Embodiment Construction

[0048] Referring to Figs. 1 to 3, a first example of the present invention will be described.

[0049] Reference numeral 1 denotes a laser beam processing apparatus of the present invention, which is commonly used as an optical fiber processing apparatus. This laser beam processing device 1 generally includes: a pulsed TEA-CO as a laser beam source 2 A laser beam supply source 2 composed of a laser 3 and an enlarging collimator lens system 4 used as a beam shaping optical system; a rotating support 6 for supporting an optical fiber 5 as a workpiece; 5 between the mask 7; and a convex lens 8 which is located between the mask 7 and the optical fiber 5 and serves as a part of the reduction image forming optical system.

[0050] The laser beam processing device 1 processes the end of the optical fiber 5. In the figure, the processed end of the optical fiber 5 is indicated by a solid line, and the non-processed end of the optical fiber 5 is indicated by a dotted line. Therefore, ...

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Abstract

Disclosed is a laser beam machining method and apparatus for irradiating a work with a laser beam, to melt-evaporate the irradiated region of the work at the irradiation spot. According to the invention, a work such as an optical fiber can be machined into a complicated form within a short period of time without accurately controlling the laser beam irradiation position while inhibiting the decline of machining accuracy due to thermal effect, by using a mask having a light-transmitting section that is predetermined times as large as the laser beam machining spot corresponding to the form of the portion undergoing melt-evaporation of the work.

Description

technical field [0001] The present invention relates to a laser beam processing method and apparatus for irradiating a workpiece with a laser beam to melt-vaporize the irradiated area of ​​the workpiece at the irradiation point. The present invention particularly provides a laser beam processing method and apparatus capable of processing a workpiece, such as an end portion of an optical fiber, into a desired shape. Background technique [0002] Optical fibers, such as optical fibers mainly composed of silica glass, are used in optical transmission systems and other optical systems, and no matter what kind of optical fibers, such as single mode (single mode) optical fibers and multimode (multiple mode) optical fibers, the end shape plays a role. important role. [0003] It is often desirable for an optical fiber to have a particularly smooth surface and precise shape in order to minimize connection loss when it is connected to another optical fiber or to an active device. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/06B23K26/36B23K26/08C03B23/09C03B37/15G02B6/255
CPCC03B23/099B23K26/0823C03B37/15G02B6/2552B23K26/0656B23K26/066
Inventor 大田一义笹野直成
Owner MORITEX CORP