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Laser line width compressing module and narrow-line-width laser

A technology for compressing the module and laser line width, which is applied in the laser field, can solve problems such as difficult light extraction and complex optical system, and achieve the effects of simplifying the line width narrowing module, high optical integration, and reducing optical loss

Inactive Publication Date: 2015-04-01
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The invention provides a line width compression module of a laser resonator, which can solve the problem of difficult light extraction of low-gain lasers due to the complexity of the optical system and surface loss of optical elements, and the module has high optical integration and is easy to adjust and use

Method used

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  • Laser line width compressing module and narrow-line-width laser
  • Laser line width compressing module and narrow-line-width laser
  • Laser line width compressing module and narrow-line-width laser

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Embodiment Construction

[0027] Such as figure 1 As shown, the present invention provides a line width narrowing module of a laser resonator, the module is an integrated optical body device, the module has a prism appearance feature, and there are two main working surfaces, one is the incident surface 1, and the other is the The reflective surface 2 with special periodic structure features has a special angle θ between the incident surface 1 and the reflective surface 2 .

[0028] The incident surface 1 is a plane, and anti-reflection coating can be coated to reduce reflection loss according to needs, or in the case of no coating, the light is incident on the incident surface 1 of the line width narrowing module at Brewster's angle. The material of the line width narrowing module is a transparent material for the working wavelength, for example, the working wavelength is in the visible light range, and the commonly used materials are quartz, K9, CaF 2 glass etc.

[0029] The reflective surface 2 of ...

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Abstract

The invention discloses a line width narrowing module of a laser resonant cavity. The module is an integrated optical element, wherein two side surfaces of a prism-like body respectively form an incident surface and a reflecting surface; the reflecting surface is a reflective blazed grating. The module can be used for solving the problem of difficult light emission caused by a complex optical system and surface abrasion of an optical element in a low-gain laser and is high in optical integrity and simple to regulate and use. The module is good in wavelength selection characteristic and relatively good in damage resistance threshold value. The laser resonant cavity built by using the module has few optical elements, is high in interference resistance and can be applied to places which are complex in environment.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to an optical element used for laser line width compression and line selection. The line width compression element disclosed by the invention has high integration, simple adjustment, easy use, and high integration characteristics, making the element It is especially suitable for occasions where the environment is complex and the stability of the resonator is high. Background technique [0002] The linewidth of a laser refers to the bandwidth of the spectrum output by the laser, and the half-maximum width of the spectral peak is usually used as the laser linewidth. The purpose of linewidth compression is to obtain high laser spectral power density. The linewidth compression module in existing lasers mostly uses a combination of gratings and other optical devices, and the basic compression principle is mainly the principle of dispersion. However, due to the use of discrete optical co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/10
Inventor 朱峰于力易爱平唐影
Owner NORTHWEST INST OF NUCLEAR TECH
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