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Anti-detuning multi-folded resonant cavity laser

A technology of lasers and resonators, applied in the field of lasers, can solve problems such as limiting laser applications, increasing the difficulty of laser debugging and maintenance, and reducing laser stability

Active Publication Date: 2021-04-09
HUBEI JIUZHIYANG INFRARED SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The easily mistuned characteristics of the resonator seriously reduces the stability of the laser, increases the difficulty of debugging and maintenance of the laser, and limits the application of the laser in harsh environments

Method used

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  • Anti-detuning multi-folded resonant cavity laser
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  • Anti-detuning multi-folded resonant cavity laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 An embodiment of the anti-offset multiple folded resonant cavity of the present invention is shown.

[0027] Such as figure 1 As shown, the present invention discloses an anti-misalignment multi-folded resonator, including a total reflection mirror 6, a λ / 4 wave plate 13, a Pockel box 12, a polarizer 11, and a λ / 4 Wave plate one 4, corner cone deflection prism two 3, corner cone deflection prism two 2, corner cone deflection prism one 1, optical wedge two 10, optical wedge one 9, gain medium 7 and pump module 8, output laser 15 exits from the output mirror 5. The total reflection mirror 6 , the first corner-corner prism 1 , the second corner-corner prism 2 , the second corner-corner 3 and the output mirror 5 form a folded resonant cavity with anti-dissonance characteristics. Optical wedge one 9 and optical wedge two 10 are placed on the resonant optical path between the gain medium 7 and the corner cube deflection prism one 1, and are used to adjust the rela...

Embodiment 2

[0030] figure 2 Another embodiment of the anti-offset multifold resonant cavity of the present invention is shown.

[0031] Such as figure 2As shown, the present invention discloses an anti-misalignment multi-folded resonator, including a total reflection mirror 6, a λ / 4 wave plate 13, a Pockel box 12, a polarizer 11, and a λ / 4 Wave plate one 4, corner cone deflection prism two 3, corner cone deflection prism two 2, optical wedge one 9, optical wedge two 10, gain medium 7, pump module 8 and corner cone deflection prism one 1, output laser 15 exits from the output mirror 5. The total reflection mirror 6 , the first corner-corner prism 1 , the second corner-corner prism 2 , the second corner-corner 3 and the output mirror 5 form a folded resonant cavity with anti-dissonance characteristics. Corner-refracting prism one 1 and corner-converting prism three 3 realize 180-degree deflection of resonant light 14 in the y direction, and corner-cone-refracting prism 2 realizes 180-d...

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Abstract

The invention discloses an anti-detuning multi-folded resonant cavity laser, which comprises a total reflective mirror, a pyramid turning prism III, a pyramid turning prism II, a pyramid turning prism I and an output mirror, the light transmission surfaces of the pyramid turning prism I and the pyramid turning prism II are oppositely arranged and are perpendicular to each other, and the output mirror is parallel to the total reflective mirror; a boosting Q-switching module consisting of a lambda / 4 wave plate II, a Pockel box and a polarizer is arranged between the total reflective mirror and the lambda / 4 wave plate I in front of the pyramid turning prism III; the multi-folded resonant cavity with three pyramid turning prism reflection structures is adopted, the length of the resonant cavity can be expanded by more than four times, the size of the long-cavity-length laser is greatly reduced, and the laser has excellent anti-maladjustment characteristic by utilizing the original angle reflection characteristic of the pyramid turning prisms; meanwhile, the intracavity loss is eliminated through the pyramid turning prism depolarization compensation design, and the output efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to an anti-offset multiple folded resonant cavity laser. Background technique [0002] The cavity length of the laser resonator is an important factor affecting the performance of the solid-state laser. The laser beam quality, divergence angle, Q-switched pulse width, reliability, energy and other parameters are closely related to the resonator length. In general, the longer the resonant cavity, the better the beam quality of the laser, the smaller the divergence angle, and the longer the Q-switched pulse width; but the larger the volume of the laser, the lower its reliability. [0003] In some military laser application fields, such as laser ranging, laser target indication, etc., the Q-switching pulse width of the laser is required to be wide, and at the same time, there are high requirements for the divergence angle, volume, and reliability of the laser. [0004] In s...

Claims

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Application Information

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IPC IPC(8): H01S3/08H01S3/10H01S3/13
CPCH01S3/08004H01S3/08059H01S3/10053H01S3/1307
Inventor 彭堂超洪普王寿增余龙胡冬至
Owner HUBEI JIUZHIYANG INFRARED SYST CO LTD