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A Barium-Gallium-Selenium Optical Parametric Oscillator Pumped by a 3-micron Band Solid-state Laser

An optical parametric oscillator, solid-state laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of low output energy and low conversion efficiency, and achieve large output energy, high damage threshold, high beam quality effect

Active Publication Date: 2019-12-10
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
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Problems solved by technology

[0003] The technical solution of the present invention is to overcome the deficiencies of the prior art and provide a 3-micron band solid-state laser-pumped gallium-barium-selenide optical parametric oscillator to solve the current problems of low conversion efficiency and small output energy

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  • A Barium-Gallium-Selenium Optical Parametric Oscillator Pumped by a 3-micron Band Solid-state Laser

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Embodiment Construction

[0016] The preferred modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] like figure 1 Shown, the present invention is by the 3 micron band solid-state laser 1 of OPO pump source, optical isolator 2, input mirror 3, BaGa 4 Se 7 The crystal 4, the output mirror 5 and the optical filter 6 are composed, and the input mirror 3 and the output mirror 5 constitute the resonant cavity of the OPO. Place the input mirror 3, BaGa 4 Se 7 Crystal 4, output mirror 5, the input and output mirror and BaGa 4 Se 7 The light passing surfaces of the crystal are parallel to each other, and each light passing surface is perpendicular to the output beam of the pump source laser 1 .

[0018] The pump light output by the pump source laser 1 passes through the optical isolator 2, enters the OPO resonator composed of the input mirror 3 and the output mirror 5, and enters the BaGa 4 Se 7 Crystal 4 generates parametric li...

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Abstract

The present invention relates to a selenium gallium barium optical parameter oscillator pumped by a 3-micron band solid state laser. The selenium gallium barium optical parameter oscillator pumped by the 3-micron band solid state laser comprises a solid state laser used as an optical parameter oscillator pumping source, an optical isolator, an OPO resonant cavity, a BaGa4Se7 crystal and a light filter. The OPO resonant cavity is composed of an input mirror and an output mirror, the optical isolator, the input mirror, the BaGa4Se7 crystal, the output mirror and the light filter are placed orderly along the direction of the pump light outputted by the solid state laser, and the light transmission planes of the input mirror, the output mirror and the BaGa4Se7 crystal are all parallel mutually and are vertical with an output light beam outputted by the solid state laser. According to the present invention, the problems that the conventional non-linear crystal is easy to damage, the conversion efficiency is low, the output energy is small, etc., are solved.

Description

technical field [0001] The invention relates to an optical parametric oscillator pumped by a 3-micron band solid-state laser and belongs to the technical field of high-energy mid-infrared lasers. Background technique [0002] The mid-infrared 4-15 micron band laser has important applications in the fields of biomedicine, spectroscopy, atmospheric detection, and photoelectric countermeasures. In the field of biomedicine, light sources in this band are important tools for studying protein folding dynamics, biomolecular recognition, high-precision minimally invasive surgery, and lidar detection. At the same time, using the characteristic absorption lines of the laser in this band for each gas molecule, it can also be used for trace gas detection, atmospheric detection and medical diagnosis of exhaled gas. However, at present, the laser in this band is mainly generated by free electron lasers and quantum cascade lasers. The huge size or high price of such lasers limit its wide ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/094H01S3/16
Inventor 王礼姚吉勇邢廷伦胡舒武程庭清吴先友江海河吴以成
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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