Laser for realizing 2-micron waveband tuning narrow linewidth laser output

A laser and wide tuning technology, applied in the field of lasers, can solve the problems of narrow tuning range of 2μm band lasers, achieve wide tuning continuous laser output, large energy level splitting, and solve the effect of narrow tuning range

Inactive Publication Date: 2015-06-03
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a laser that realizes 2 μm band wide tuning and narrow linewidth laser output in order to solve the problem of narrow tuning range of existing 2 μm band lasers

Method used

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  • Laser for realizing 2-micron waveband tuning narrow linewidth laser output
  • Laser for realizing 2-micron waveband tuning narrow linewidth laser output
  • Laser for realizing 2-micron waveband tuning narrow linewidth laser output

Examples

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Effect test

Embodiment example 1

[0017] Implementation Case 1: Combining figure 1 , the present invention includes a laser pump source 1, a coupling focusing system 2, an input mirror 3, a laser crystal 4 and an output mirror 6, and a wavelength modulation prism 5 is also arranged between the laser crystal 4 and the output mirror 6, and the laser crystal 4 It is Ho:SSO crystal. The pump light emitted by the laser pump source 1 enters the Ho:SSO crystal 4 through the coupling focusing system 2 and the input mirror 3 in sequence, and the laser generated by the Ho:SSO crystal 4 oscillates in the resonant cavity formed by the input mirror 3 and the output mirror 6, And output through the output mirror 6, the wavelength modulation prism 5 is located in the resonant cavity for continuous tuning of the laser wavelength, and the resonant cavity is a flat concave cavity. The output mirror 6 of the present invention is realized by a volume grating, and the pass bandwidth of the volume grating coating is 200nm; the las...

Embodiment example 2

[0019] Implementation Case 2: Based on the above implementation cases combined with image 3 , the present invention can also be: a 45° reflector 7 is arranged between the laser crystal 4 and the wavelength modulation prism 5, that is, an "L" type resonant cavity is used, and the 45° reflector 7 is used to The light is reflected at 45°. It can change the transmission direction of the pump light and the laser beam in the cavity, effectively reduce the physical cavity length of the laser, save the overall volume of the laser, and can also effectively filter the pump light to prevent the laser and pump light from being output at the same time.

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Abstract

The invention provides a laser for realizing 2-micron waveband tuning narrow linewidth laser output. The laser comprises a laser pumping source, a coupled focusing system, an input mirror, a laser crystal and an output mirror, wherein a wavelength modulation prism is arranged between the laser crystal and the output mirror; the laser crystal is an Ho: SSO crystal. According to the laser provided by the invention, the problem that the conventional 2-micron waveband lasers are narrow in tuning range is solved; Ho: SSO is adopted as the laser crystal; the wavelength modulation prism is adopted to realize the continuous tuning of laser wavelength; a volume grating is adopted as the output mirror; a Tm: YAP laser is adopted as the pumping source; a resonant cavity is an L-shaped plane concave cavity. The laser has the advantages of realizing high-power narrow-tuning continuous laser output of 2-micron waveband and satisfying the requirements for high-energy wide-spectrum laser light sources in spectral measurement.

Description

technical field [0001] The invention relates to a laser, in particular to a laser capable of realizing 2 μm wave band width tuning and narrow line width laser output. Background technique [0002] The invention of the laser is an epoch-making achievement that has had a profound impact on human society. With the continuous development of laser technology and laser devices, the demand for lasers with high efficiency, high beam quality, compact structure and good stability is becoming more and more urgent. Because semiconductor-pumped solid-state lasers have many advantages, such as small size, light weight, compact structure, easy portability, easy maintenance and operation, it has attracted the attention of laser researchers as soon as it appeared. [0003] The highly coherent radiation source in the 2μm band has been used in the fields of laser ranging, laser remote sensing, laser imaging, photoelectric countermeasures, medical diagnosis and treatment, scientific instrument...

Claims

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Application Information

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IPC IPC(8): H01S3/16H01S3/106H01S3/094
Inventor 杨晓涛沈元赵嫦欣葛明王忠巍
Owner HARBIN ENG UNIV
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