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Laser resonant cavity of preventing mismatching

A technology of laser resonator and optical axis, applied in the field of laser resonator, can solve the problems of limitation, reduction of light output energy, and high processing precision of corner cube prisms, and achieves easy debugging, reduced diffraction loss, and no hard edge diffraction loss. Effect

Inactive Publication Date: 2007-12-19
BEIJING GK LASER TECH
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Problems solved by technology

Although the corner cube prism has the advantages of strong anti-detuning ability, convenient assembly, and simple debugging as a rear reflection cavity mirror, but because the corner cube prism has three right-angle corrugations, when it is used as a rear cavity mirror reflection, the exit spot will be divided into obvious symmetry. In addition, due to the diffraction loss of the hard edge of the right-angle corrugated prism, the light energy is also reduced; in addition, this method has high requirements for the processing accuracy of the corner cube, and generally requires the accuracy of the reflection angle to be within 3 seconds. have greatly restricted its application

Method used

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  • Laser resonant cavity of preventing mismatching
  • Laser resonant cavity of preventing mismatching

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Embodiment 1

[0021] Referring to FIG. 4, the anti-detuning high-beam quality laser resonator of the present invention is manufactured, which includes an output mirror 1 and a right-angle cone 4 facing and coaxially arranged on the optical axis. A laser crystal rod 2 and a Q-switching unit 3 are arranged on the optical axis in the laser resonator using the prior art. Wherein, the output mirror 1 and the rectangular cone 4 are mounted on a two-dimensionally adjustable mirror frame, which is a mirror frame of the prior art, and can be purchased from the market, for example. The laser rod 2 in the present embodiment selects conventional Nd:YAG crystal with a doping concentration of 1%, and both end surfaces of the laser rod crystal are coated with an anti-reflection film with a wavelength of 1064nm, and the coating technology is well known to those skilled in the art ; The Q-switching unit 3 can be an electro-optic Q-switching unit, an acousto-optic Q-switching unit, or a passive Q-switching u...

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Abstract

This invention discloses an anti-detuning laser resonator with high optical beam quality including an output mirror and a rear mirror set oppositely in co-axis, said rear mirror is in the shape of right angle taper of 90deg. This invention is helpful to realize output of laser of high beam quality having the advantages of anti-detuning, easy tuning, no hard edge difraction loss and high emission rate.

Description

technical field [0001] The invention relates to solid-state laser technology, in particular to a laser resonator cavity with high beam quality and anti-detuning. Background technique [0002] In many laser application fields, not only the laser is required to have better beam quality, but also the laser is required to have a strong anti-detuning ability, and in order to meet the requirements of mass production, the design of the laser itself is also expected to be easy to assemble and debug, etc. advantage. [0003] In the prior art, the widely used method to enhance the anti-detuning ability of the laser is to use a corner cube as the rear reflection cavity mirror of the resonator, such as document 1: Ye Yidong et al. "Basic characteristics of the corner cube laser resonator, Technology disclosed in Intense Lasers and Ion Beams, Vol. 16, No. 8, August 2004". Although the corner cube prism has the advantages of strong anti-detuning ability, convenient assembly, and simple ...

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Application Information

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IPC IPC(8): H01S3/08
Inventor 樊仲维崔建丰裴博
Owner BEIJING GK LASER TECH
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