1.17-micron self-Raman laser intracavity pumping 3-micron holmium-doped solid laser

A solid-state laser, Raman laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problem of lack of restrictions on the development and application of 3μm holmium-doped lasers, and achieve compact structure, high absorption coefficient and low cost. Effect

Pending Publication Date: 2022-01-28
中红外激光研究院(江苏)有限公司
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Problems solved by technology

The lack of high-power pump sources at 1.12-1.2 μm limits the development and application of 3 μm holmium-doped lasers

Method used

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  • 1.17-micron self-Raman laser intracavity pumping 3-micron holmium-doped solid laser
  • 1.17-micron self-Raman laser intracavity pumping 3-micron holmium-doped solid laser

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Embodiment Construction

[0015] The present invention will be further described below.

[0016] Such as figure 2 As shown, the present invention includes a housing, and a 0.8 μm semiconductor laser pump source 1, an input mirror 2, a neodymium-doped laser self-Raman medium 3, an intermediate mirror 4, a holmium-doped solid laser medium 5, and an output mirror 6 arranged in the housing. ;

[0017] The intermediate mirror is located between the input mirror 2 and the output mirror 6, the surface of the input mirror 2 is provided with a first coating, the first coating has high transmittance to 0.8 μm laser, and has high reflectivity to 1 μm and 1.17 μm laser; the middle The surface of the mirror 4 is provided with a second coating, the second coating has high transmittance for 1 μm and 1.17 μm lasers, and has high reflectivity for 3 μm lasers; the surface of the output mirror 6 is provided with a third coating, the third coating is suitable for 1 μm and 1.17 μm The laser has a high reflectivity, and ...

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Abstract

The invention discloses a 1.17-micron self-Raman laser intracavity pumping 3-micron holmium-doped solid laser which comprises a 0.8-micron semiconductor laser pumping source, an input mirror, a neodymium-doped laser self-Raman medium, an intermediate mirror, a holmium-doped solid laser medium and an output mirror. By carrying out reasonable film coating on the input mirror, the intermediate mirror and the output mirror, the input mirror and the output mirror form a resonant cavity of 1-micron fundamental frequency light and 1.17-micron Raman laser; the intermediate mirror and the output mirror form a 3-micron laser resonant cavity; the neodymium-doped laser self-Raman medium is used for absorbing 0.8-micron laser to generate 1-micron fundamental frequency light and 1.17-micron Raman laser, and is oscillated in the resonant cavity of the 1-micron fundamental frequency light and the 1.17-micron Raman laser; the holmium-doped solid laser medium is used for absorbing 1.17-micron Raman laser to generate 3-micron laser, one part of the laser oscillates in the 3-micron laser resonant cavity, and the other part of the laser directly outputs the 3-micron laser from the output mirror. According to the invention, the existing semiconductor laser can be utilized, the cost performance is high, and the continuous and stable output of 3-micron laser can be realized.

Description

technical field [0001] The invention relates to a 1.17 μm self-Raman laser intracavity pumped 3 μm holmium-doped solid laser, belonging to the technical field of solid lasers. Background technique [0002] Lasers in the mid-infrared band (that is, with a wavelength of 3-5 μm) have gradually become a research hotspot in the field of international laser technology. The mid-infrared laser covers the important transmission window of the atmosphere, has strong penetrating power to fog, smoke, etc., and when transmitting at sea level, it is less absorbed by gas molecules and scattered by suspended matter, so it can be used in atmospheric science Trace gas analysis, exhaust gas detection, and pollution detection and air pollution analysis of a large area of ​​the ground. In medical treatment, due to the absorption characteristics of water molecules in biological cells to mid-infrared lasers, mid-infrared lasers are widely used in biological detection and medical operations. For ex...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/08H01S3/0941
CPCH01S3/1611H01S3/161H01S3/1671H01S3/1673H01S3/1643H01S3/08H01S3/0941
Inventor 沈德元王飞
Owner 中红外激光研究院(江苏)有限公司
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