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High-performance double-tail-end pumping single-doped Ho:YAG solid laser

A solid-state laser, pump laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve problems such as unbalanced crystal thermal distribution, and achieve compact structure, balanced thermal distribution, and good stability.

Inactive Publication Date: 2013-07-10
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 problem that current single-doped Ho lasers easily lead to unbalanced heat distribution inside the crystal, which has adverse effects on the high-power operation of the laser. The present invention provides a high-performance double-end pumped single-doped Ho laser. Ho:YAG solid-state laser

Method used

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  • High-performance double-tail-end pumping single-doped Ho:YAG solid laser

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specific Embodiment approach 1

[0011] Specific implementation mode one: combine figure 1 Describe this embodiment mode, the high-performance dual-end pump single-doped Ho:YAG solid-state laser described in this embodiment mode, it comprises the first total reflection mirror 1, single-doped Ho:YAG crystal 2, the second total reflection mirror 3, F-P etalon 4, 2 μm output coupling mirror 6, first isolation device 7, second isolation device 8, first pump laser 9 and second pump laser 10;

[0012] The 1.9 μm pumping light emitted by the first pump laser 9 is incident on the first isolating device 7, and the pumping light transmitted through the first isolating device 7 is incident on the first total reflection mirror 1, and the pump light transmitted through the first total reflection mirror 1 The pump light is incident on the single-doped Ho:YAG crystal 2, and after being absorbed by the single-doped Ho:YAG crystal 2, a 2 μm laser is generated, and the 2 μm laser is incident on the second total reflection mirr...

specific Embodiment approach 2

[0015] Embodiment 2: This embodiment is a further limitation of the high-performance dual-end pumped single-doped Ho:YAG solid-state laser described in Embodiment 1.

[0016] It also includes a Q-switching crystal 5 which is connected in series in the optical path between the F-P etalon 4 and the 2 μm output coupling mirror 6 .

[0017] The pumping method is double-end pumping, and the two pumping lights must first pass through an isolation device and then be injected into the single-doped Ho:YAG crystal 2 . The pump light is incident from the 0°2μm total reflection mirror and the 45°2μm total reflection mirror respectively. The laser resonator consists of the first total reflection mirror 1, the second total reflection mirror 3 and the 2μm output coupling mirror 6 arranged in an "L" shape, and each pumping optical path is inserted into an isolation device. The 2 μm single-wavelength laser output is obtained by tuning the angle of the F-P etalon 4.

[0018] In this embodimen...

specific Embodiment approach 3

[0019] Specific embodiment three: this embodiment is a further limitation of the high-performance dual-end pumped single-doped Ho:YAG solid-state laser described in specific embodiment one or two,

[0020] The first total reflection mirror 1 is a 2 μm total reflection mirror with a critical angle of 0°,

[0021] The 2 μm laser light transmitted through the single-doped Ho:YAG crystal 2 is vertically incident on the first total reflection mirror 1 .

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Abstract

The invention discloses a high-performance double-tail-end pumping single-doped Ho:YAG solid laser, relates to a solid laser, and aims at solving the problem that the existing single-doped Ho laser easily causes unbalanced heat distribution in the crystal so as to cause bad influence on high-power operation of the laser. The high-performance double-tail-end pumping single-doped Ho:YAG solid laser is characterized in that the pumping mode is double-tail-end pumping, both two paths of pumping lights need to penetrate through an isolating device firstly, and then are filled into the single-doped Ho:YAG crystal; the pumping lights enter respectively from a 0-degree 2mum total reflection mirror and a 45-degree 2mum total reflection mirror; a resonance cavity of the laser is arranged by a first total reflection mirror, a second total reflection mirror and a 2mum output coupling mirror according to an L-shaped structure; and the 2mum output coupling mirror obtains 2mum single-wavelength laser for outputting by tuning the angle of an F-P (Fabry-Perot) etalon. The high-performance double-tail-end pumping single-doped Ho:YAG solid laser is used for obtaining 2mum single-wavelength laser.

Description

technical field [0001] The invention relates to a solid-state laser, in particular to a high-performance double-end pumped single-doped Ho:YAG solid-state laser. Background technique [0002] Lasers in the 2μm band are widely used, involving military affairs, infrared remote sensing, medical treatment, and optical communications. In particular, the mid-to-far infrared 3-12μm laser output can be achieved under the action of nonlinear conversion. The single-doped Ho solid-state laser using a 1.9-micron laser as a pump source is the best technical approach to obtain a 2-micron laser at room temperature. At present, the single-end pumping method is basically used in single-doped Ho lasers, which reduces the uniformity of the laser crystal's absorption of pump light, leads to unbalanced heat distribution inside the crystal, and has a negative impact on the high-power operation of the laser. Contents of the invention [0003] The purpose of the present invention is to solve the...

Claims

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Application Information

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IPC IPC(8): H01S3/16H01S3/10
Inventor 姚宝权段小明鞠有伦贺万骏王月珠
Owner HARBIN INST OF TECH
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