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Acousto-optic Q-switched sub-nanosecond infrared solid laser and control method thereof

A solid-state laser, sub-nanosecond technology, applied in the field of lasers, can solve the problem of lack of sub-nanosecond lasers, etc., and achieve the effect of simple and compact structure

Active Publication Date: 2020-11-27
罗根激光科技(武汉)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides an acousto-optic Q-switched sub-nanosecond infrared solid-state laser to solve the problem of lack of sub-nanosecond lasers in the prior art

Method used

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  • Acousto-optic Q-switched sub-nanosecond infrared solid laser and control method thereof
  • Acousto-optic Q-switched sub-nanosecond infrared solid laser and control method thereof

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Embodiment 1

[0034] Such as figure 1 Shown is a schematic structural view of an embodiment of a laser resonator of an acousto-optic Q-switched sub-nanosecond infrared solid-state laser provided by the present invention. figure 1 It can be seen that the embodiment of the laser includes: a laser source and a laser resonator.

[0035] The laser resonant cavity includes: a resonant optical path and an acousto-optic Q switch Q1.

[0036] The laser output from the laser source passes through the resonant optical path to generate resonant light, which is output to the acousto-optic Q switch, and the acousto-optic Q switch generates laser pulses and then outputs it.

[0037] The present invention provides a sub-nanosecond infrared solid-state laser with acousto-optic Q-switching. The structure of the laser resonator is simple and compact. Through a shorter optical resonator and a small spot size, it can be obtained under the condition of only acousto-optic Q-switching. Sub-nanosecond laser pulse...

Embodiment 2

[0051]Embodiment 2 provided by the present invention is an embodiment of a method for controlling a laser resonator of an acousto-optic Q-switched sub-nanosecond infrared solid-state laser provided by the present invention. figure 2 Shown is a flowchart of an embodiment of an acousto-optic Q-switched sub-nanosecond infrared solid-state laser control method provided by the present invention. figure 2 As can be seen, embodiments of the control method include:

[0052] Step 1, the main control system controls the semiconductor module to emit light, and at the same time the water cooling system works, and the temperature control system keeps the temperature of the semiconductor module stable.

[0053] Step 2: The pump light emitted by the semiconductor module passes through the collimation system and is focused on the end face of the laser crystal, so that the laser crystal absorbs and generates spontaneous radiation, gradually forming a stable resonant light.

[0054] Step 3, ...

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Abstract

The invention relates to an acousto-optic Q-switched sub-nanosecond infrared solid laser, which comprises a laser source and a laser resonant cavity, wherein the laser resonant cavity comprises a resonance light path and an acousto-optic Q switch Q1; and laser output by the laser source passes through the resonance light path and then generates resonance light to be output to the acousto-optic Q switch, and the acousto-optic Q switch generates laser pulses and then outputs the laser pulses. The laser resonant cavity is simple and small in structure, sub-nanosecond laser pulses less than 6ns can be obtained through the short optical resonant cavity and the small light spot size under the condition that only acousto-optic Q-switching is conducted, and excellent seed laser is provided for a sub-nanosecond infrared / green laser with higher power.

Description

technical field [0001] The invention relates to the field of lasers, in particular to an acousto-optic Q-switched sub-nanosecond infrared solid-state laser and a control method thereof. Background technique [0002] The pulse width of conventional acousto-optic Q-switched nanosecond solid-state lasers is on the order of 10-100 nanoseconds, which cannot meet the requirements for processing brittle materials with slightly higher requirements, while picosecond lasers have no advantage in cost and have excess performance. [0003] In this context, there is an application demand for sub-nanosecond lasers, especially for sub-nanosecond 532nm green lasers. Contents of the invention [0004] Aiming at the technical problems in the prior art, the present invention provides an acousto-optic Q-switched sub-nanosecond infrared solid-state laser, which solves the problem of lack of sub-nanosecond lasers in the prior art. [0005] The technical solution of the present invention to solv...

Claims

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Application Information

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IPC IPC(8): H01S3/117H01S3/04H01S3/042H01S3/081
CPCH01S3/117H01S3/0813H01S3/042H01S3/0407
Inventor 肖志松
Owner 罗根激光科技(武汉)有限公司
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