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Nonlinear crystal component for external cavity frequency doubling ultraviolet laser

A technology of nonlinear crystals and components, which is applied in laser parts, lasers, nonlinear optics, etc., can solve problems such as negative impact, UV laser output power drop, crystal incident angle deviation, etc., to improve service life and design structure Simple, reliable, and low-cost results

Inactive Publication Date: 2015-05-13
BEIJING GK LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the strict matching angle required by the nonlinear crystal, it is difficult for the usual motion mechanism to achieve an absolutely parallel motion, which causes the incident angle of the crystal to shift after the movement, which will lead to a sharp drop in the output power of the ultraviolet laser, which will affect subsequent applications. have a huge negative impact

Method used

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  • Nonlinear crystal component for external cavity frequency doubling ultraviolet laser
  • Nonlinear crystal component for external cavity frequency doubling ultraviolet laser
  • Nonlinear crystal component for external cavity frequency doubling ultraviolet laser

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] This embodiment provides a nonlinear crystal component for external cavity frequency doubling ultraviolet laser, its structure is as follows image 3 shown, including:

[0027] A nonlinear crystal, which has an incident end surface S1 and an exit end surface S2, wherein the incident end surface S1 is perpendicular to the incident laser beam L along the axis A, the exit end surface S2 is a slope, and the normal line N between the laser beam L and the exit end surface S2 1 The angle θ1 between them is equal to Brewster’s angle. When the incident laser beam L satisfies the Brewster’s angle incidence condition, ...

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Abstract

The invention provides a nonlinear crystal component. The nonlinear crystal component comprises a nonlinear crystal and a compensation block, wherein the nonlinear crystal is provided with a first incidence end surface and a first emission end surface; and the compensation block is provided with a second incidence end surface and a second emission end surface, a laser beam emitted from the nonlinear crystal enters into the compensation block through the second incidence end surface and is emitted through the second emission end surface, and an antireflection film is coated on the second emission end surface.

Description

technical field [0001] The invention relates to a nonlinear crystal component, in particular to a nonlinear crystal component used for an external cavity frequency doubling ultraviolet laser. Background technique [0002] In the external cavity frequency-doubling ultraviolet laser, the ultraviolet laser output can be obtained through the nonlinear crystal by using the nonlinear frequency conversion technology, and the ultraviolet laser is usually obtained by the triple frequency technology, the quadruple frequency technology or the quintuple frequency technology. [0003] Among them, the principle of triple frequency technology to generate ultraviolet laser is as follows: figure 1 Shown: the base frequency light passes through the double frequency crystal firstly to generate the double frequency laser output, then the double frequency laser and the rest of the base frequency light pass through the triple frequency crystal together, then the double frequency laser and the res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35G02B1/02H01S3/109
Inventor 石朝辉樊仲维王培峰
Owner BEIJING GK LASER TECH