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Optical Engineering

Stabilization of pulse-to-pulse energy and width by gain-controlled prelase in laser-diode-pumped Q-switched laser
Author(s): Ping Yan; Mali Gong; Tao Xie; Xingzhan Liu
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Paper Abstract

Gain-controlled prelase is used to obtain highly stable pulse energy and width in a laser diode (LD)-pumped acousto-optic (A-O) Q-switched Nd:YAG laser. The gain-controlled prelase method can overcome prelase spiking caused by loss-controlled prelase and keep the Q-value dynamic range unchanged. With the gain-controlled prelase, 45 μJ output energy with ±0.8% instability is achieved at the repetition rate of 50 Hz. The pulse time jitter is 211 ps at the pulse width of 19.48 ns. Gain-controlled prelase has significant advantages of implementation simplicity and reliability. It is applied in an obvious way to other LD-pumped actively Q-switched solid state lasers such as Yb:YAG or Nd:YVO4 laser systems.

Paper Details

Date Published: 1 January 2003
PDF: 4 pages
Opt. Eng. 42(1) doi: 10.1117/1.1522725
Published in: Optical Engineering Volume 42, Issue 1
Show Author Affiliations
Ping Yan, Tsinghua Univ. (China)
Mali Gong, Tsinghua Univ. (China)
Tao Xie, Tsinghua Univ. (China)
Xingzhan Liu, Tsinghua Univ. (China)


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