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Self-Q-switched cross-polarized dual-wavelength pulse laser

A dual-wavelength laser and self-adjusting technology, which is applied to lasers, laser components, phonon exciters, etc., can solve problems such as the complex structure of orthogonally polarized dual-wavelength lasers, and achieve simple performance, increased peak power, and low cost effect

Active Publication Date: 2014-06-18
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0006] The present invention is a new high-stability, small-sized, low-cost self-Q-switching, orthogonally polarized dual-wavelength laser, which solves the problem of complex structure of the current orthogonally polarized dual-wavelength laser, and is simple and easy to implement with excellent performance. reliable

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  • Self-Q-switched cross-polarized dual-wavelength pulse laser
  • Self-Q-switched cross-polarized dual-wavelength pulse laser
  • Self-Q-switched cross-polarized dual-wavelength pulse laser

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby. refer to figure 1 It is a block diagram of a self-Q-switched, orthogonally polarized dual-wavelength Yb:CGB laser device of the present invention. It can be seen from the figure that the present invention includes a pumping source (1), a pumping light focusing system (2), a laser cavity input mirror (3), a Yb:CGB laser gain crystal (4), and a laser cavity output mirror (5). It is characterized in that the Fresnel reflection is adjusted by slightly tilting the output mirror, and the loss control of the two wavelengths and their polarization directions is realized, and the strong energy storage capacity of the long excited state lifetime of the Yb:CGB laser crystal is combined with the Yb 3+ Combining the nonlinear reabsorption effect of the ion quasi-three-level structure, wi...

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Abstract

The invention discloses a self-Q-switched cross-polarized dual-wavelength pulse laser with a compact structure. Adjustment of wavelength and polarization is realized by optimally designing the inclination angle of an output mirror, and self-Q-switched cross-polarized dual-wavelength pulse laser output is realized by using the nonlinear reabsorption effect of a Yb<3+>:Ca3Gd2(BO3)4 crystal. The polarization directions of two output wavelengths are vertical to each other, and the frequency difference is on a terahertz waveband.

Description

technical field [0001] The invention relates to a simple and easy-to-use technology for realizing self-Q-switching and orthogonally polarized dual-wavelength lasers, which is suitable for the design of all-solid-state lasers in different wave bands, and is used in applications that require high peak power, high polarization degree, small size, low cost, positive Industrial and research fields of cross-polarized dual-wavelength lasers. Background technique [0002] Terahertz radiation has many unique properties such as transient, high signal-to-noise ratio, low energy, non-destructive, water absorption, perspective, fingerprint absorption spectrum, etc., and contains rich physical and chemical information. It is widely used in industry, military and basic research There is huge room for development in this field. One of the most widely studied and most effective technologies for realizing terahertz radiation is to use orthogonally polarized dual-wavelength lasers with a freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/11H01S3/13
Inventor 徐金龙涂朝阳王燕冀月霞游振宇朱昭捷李坚富
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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