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3-5-micron waveband intermediate infrared solid laser

A solid-state laser and wavelength band technology, applied in the optical field, can solve the problems of low output power and poor brightness, achieve high stability, increase pump power, and improve beam quality

Active Publication Date: 2013-08-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low output power and poor brightness of existing mid-infrared solid-state lasers, and to provide a mid-infrared solid-state laser in the 3-5 μm band

Method used

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  • 3-5-micron waveband intermediate infrared solid laser

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specific Embodiment approach 1

[0013] Specific implementation mode one: the following combination figure 1 Describe this embodiment mode. A 3-5 μm band mid-infrared solid-state laser described in this embodiment mode includes No. 1 plano-convex lens 1-I, No. 2 plano-convex lens 1-II, No. 3 plano-convex lens 1-III, and No. 4 plano-convex lens 1-III. Convex lens 1-IV, No. 1 input mirror 2-I, No. 1 plane mirror 2-II, No. 2 input mirror 2-III, OPO output mirror 4, lens 5, No. 1 optical parameter oscillating crystal 3-I and No. 2 optical parameter Oscillating crystal 3-II;

[0014] The convex surfaces of the No. 1 plano-convex lens 1-I and the No. 2 plano-convex lens 1-II are opposite to form a No. 1 coupling system; No. coupling system;

[0015] The No. 1 input mirror 2-I, the No. 1 plane mirror 2-II, the No. 2 input mirror 2-III and the OPO output mirror 4 form an optical parametric oscillation resonant cavity;

[0016] The first pump laser incident to the first coupling system is coupled by the first coupl...

specific Embodiment approach 2

[0019] Specific implementation mode two: the following combination figure 1 Describe this embodiment mode. This embodiment mode will further explain Embodiment 1. The No. 1 optical parametric oscillator crystal 3-I and the No. 2 optical parametric oscillator crystal 3-II described in this embodiment mode are the same type of crystals. BYZGR 2 The crystal is coated with 2μm and 3-5μm anti-reflection coatings on both the light incident surface and the transmission surface of the crystal.

specific Embodiment approach 3

[0020] Specific implementation mode three: the following combination figure 1 Describe this embodiment, this embodiment will further explain Embodiment 1, the No. 1 input mirror 2-I, the No. 1 plane mirror 2-II and the No. Transparent film, the other side is coated with 2μm high-transparency and 3-5μm high-reflection film.

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Abstract

The invention discloses a 3-5-micron waveband intermediate infrared solid laser, which belongs to the optical field and aims to solve the problems of low output power and poor luminance of the traditional intermediate infrared solid laser. The 3-5-micron waveband intermediate infrared solid laser comprises a No.1 plano-convex lens, a No.2 plano-convex lens, a No.3 plano-convex lens, a No.4 plano-convex lens, a No.1 input mirror, a No.1 plane mirror, a No.2 input mirror, an OPO (optical parametric oscillator) output mirror, a lens, a No.1 optical parametric oscillation crystal and a No.2 optical parametric oscillation crystal, wherein the No.1 plano-convex lens and the No.2 plano-convex lens form a No.1 coupled system; the No.3 plano-convex lens and the No.4 plano-convex lens form a No.2 coupled system; the No.1 input mirror, the No.1 plane mirror, the No.2 input mirror and the OPO output mirror form an optical parametric oscillation resonant cavity; pumped laser light emitting laser light enters the optical parametric oscillation resonant cavity respectively by two coupled systems; and the two optical parametric oscillation crystals are used for converting the wavelength of the laser light for generating 3-5-micron waveband intermediate infrared solid laser light.

Description

technical field [0001] The invention relates to a solid laser and belongs to the field of optics. Background technique [0002] The mid-infrared laser in the 3-5μm band has strong penetrating power to fog, smoke, etc., and is less affected by the absorption of gas molecules and the scattering of suspended matter, so it has high applications in the fields of spectral measurement, remote sensing, environmental protection and optical communication value. The most effective way to obtain high-power 3-5μm laser is to down-convert the frequency of 2μm band laser by way of Optical Parametric Oscillation (OPO). The optical parametric oscillator consists of two parts: a resonant cavity and a nonlinear crystal. A general optical parametric oscillator uses a nonlinear crystal and a linear cavity, and this structure is not conducive to the high-power stable operation of the optical parametric oscillator. When using a linear resonator structure, in order to avoid adverse effects of fe...

Claims

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Application Information

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IPC IPC(8): H01S3/081H01S3/05G02F1/35H01S3/16
Inventor 姚宝权段小明鞠有伦贺万骏申英杰王月珠
Owner HARBIN INST OF TECH
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