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Exciting single energy photon to realize base traverse module output

A fundamental transverse mode and energy technology, applied in lasers, phonon exciters, laser welding equipment, etc., can solve the problems that the cavity mirror parameters cannot be calculated by theoretical formulas, and cannot realize the circular spot output of the fundamental transverse mode, etc. The effect of beam quality, improved processing performance, and high stability

Inactive Publication Date: 2008-09-03
石景林
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Problems solved by technology

[0005] The purpose of the present invention is to provide a single-energy photon to realize the output of the fundamental transverse mode, focusing on solving the problems that domestic and foreign high-power (or high-energy) lasers cannot realize the circular spot output of the fundamental transverse mode, and the parameters of the cavity mirror cannot be calculated by theoretical formulas. question

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  • Exciting single energy photon to realize base traverse module output
  • Exciting single energy photon to realize base traverse module output
  • Exciting single energy photon to realize base traverse module output

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Embodiment Construction

[0024] A kind of excitation of single-energy photons to realize the output of the fundamental transverse mode, which is characterized in that the two energy level differences in the atomic system invented by myself have the functions of frequency selection and transverse mode selection, and the external energy pumping atomic system is properly controlled to make the laser working material It can emit a single energy photon, and the energy of the photon is only equal to the difference between two specific energy levels in the atom.

[0025] A kind of excitation single energy photon realizes fundamental transverse mode output, it is characterized in that, laser resonant cavity is made of directional prism 1, symmetrical biconvex mirror 2, directional prism 1 is total reflection mirror, symmetrical biconvex mirror 2 is output mirror, its The structure type matches the Gaussian beam characteristics, and the absolute values ​​of the curvature radii of the two surfaces must be equal,...

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Abstract

The invention provides a method of excitation single energy photon for realization fundamental transverse mode output which belongs to laser technique field. The method can solve problems that high-power (or high-energy) laser can not realize fundamental transverse mode round facula output at home and abroad, and cavity mirror parameter can not be calculated by using theory formula. The invention provides an atomic system that two energy differences in the atomic system has frequency selection and transverse mode selection functions. The energy differences can suitable control external energy pumped atomic system, and can make laser working material emitting single energy photons, and confirm cavity mirror parameter utilizing theory formula provided by the invention dmax, dmin, linear polarize laser window, and laser beam unhappens mode aberrance, can realize fundamental transverse mode round facula output. A laser resonant cavity is composed of a directional prism (1) and a symmetry biconvex lens (2) and has high stability. The method provided by the invention can greatly increase industry laser processing property, and sufficiently meeting industry laser processing need. The method is mainly used in industry laser welding, cutting, heat treatment etc.

Description

technical field [0001] The invention relates to a method of exciting single-energy photons to realize fundamental transverse mode output, and belongs to the field of laser technology. Background technique [0002] Industrial laser processing requires good beam quality, preferably a circular spot output in the fundamental transverse mode, high laser stability, and high laser output power (or energy). [0003] In order to meet the requirements of industrial laser processing, directional prism resonators are currently used both at home and abroad. Such as Cheng Yong et al., Research on the characteristics of directional prism resonator, China Laser, 2000, VO1.A27, NO.6. There is a parallel light field in the cavity of the directional prism, and the deflection of the prism does not cause the direction of the oscillating light in the cavity to change. The uneven distribution of density and stress makes the gain tend to be uniform, the light field distribution is uniform, the di...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00H01S3/08H01S3/098B23K26/00
Inventor 石景林
Owner 石景林