Pulse width adjustable laser

Abstract

The invention relates to a pulse width adjustable laser. A diode-pumped acousto-optic Q-switched solid-state laser can be used for performing terminal pumping or side pumping on a solid-state laser working material, or performing proper terminal pumping and side pumping on the solid-state laser working material in a properly-combined manner; it can be ensured that the laser works under substantially the same thermal effect; and therefore, the pulse width controllability of laser pulses can be realized.

Description

technical field [0001] The laser diode-pumped acousto-optic Q-switched solid-state laser can realize controllable laser pulse width. Background technique [0002] Solid-state lasers pumped by laser diodes are widely used in laser processing, medical treatment and military affairs. [0003] Typical diode-pumped solid-state lasers use two typical pumping methods, side pumping and end pumping. [0004] When the diode side-pumps the working substance of the solid-state laser, the diode slab is usually directly approached to the side of the working substance of the solid-state laser for direct pumping, or only a simple beam shaping optical element is used to properly adjust the output light of the diode. Focus on shaping. The advantage is that the pumped area of ​​the solid-state laser working material is large, and it is easy to achieve high power output of the solid-state laser by increasing the number of pump diodes. But another feature is that the pump light has a large di...

AI Technical Summary

Problems solved by technology

However, a fixed hardware design can only achieve a certain laser pulse width output

Since the solid-state laser needs to work at a specific pump intensity to ensure that the laser is under a specific thermal effect that can work stably, in actual work, it is not realistic to try to achieve a controllable change in the laser pulse width by changing the pump intensity. , so that a specific design and manufacture of solid-state lasers can only guarantee a specific laser pulse width corresponding to a specific pulse repetition frequency

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