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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  • Abstract
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  • Claims
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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 ha

Method used

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

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Example Embodiment

[0011] Specific implementation mode 1: Combination figure 1 To explain this embodiment, the high-performance double-end pumped single-doped Ho: YAG solid-state laser described in this embodiment includes a first total mirror 1, a single-doped Ho: YAG crystal 2, a second total mirror 3, FP etalon 4, 2μm output coupling mirror 6, first isolation device 7, second isolation device 8, first pump laser 9 and second pump laser 10;

[0012] The 1.9μm pump light emitted by the first pump laser 9 is incident on the first isolation device 7, the pump light transmitted by the first isolation device 7 is incident on the first total mirror 1, and the pump light transmitted by the first total mirror 1 The pump light is incident on the mono-doped Ho:YAG crystal 2, and after being absorbed by the mono-doped Ho:YAG crystal 2, a 2μm laser light is generated, and the 2μm laser light is incident on the second total mirror 3,

[0013] The 1.9 μm pump light emitted by the second pump laser 10 is inciden...

Example Embodiment

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

[0016] It also includes a Q-switched crystal 5 which is connected in series in the optical path of 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 pass through an isolation device before being injected into the single-doped Ho:YAG crystal 2. The pump light is incident from a 0°2μm total mirror and a 45°2μm total mirror respectively. The laser resonant cavity consists of a first total mirror 1, a second total mirror 3 and a 2μm output coupling mirror 6 placed in an "L"-shaped structure, and an isolation device is inserted into each pump light path. By tuning the angle of the F-P etalon 4, a 2μm single-wavelength laser output is obtained.

[0018] In this embodiment, when the Q-switched crystal 5 is working, the high-performanc...

Example Embodiment

[0019] Embodiment 3: This embodiment is a further limitation of the high-performance double-end pumped single-doped Ho:YAG solid-state laser described in Embodiment 1 or 2.

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

[0021] The 2 μm laser light transmitted through the single-doped Ho:YAG crystal 2 is incident vertically to the first total 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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