Stabilization of pulse-to-pulse energy and width by gain-controlled prelase in laser-diode-pumped Q-switched laser

Ping Yan; Mali Gong; Tao Xie; Xingzhan Liu

doi:10.1117/1.1522725

1 January 2003 Stabilization of pulse-to-pulse energy and width by gain-controlled prelase in laser-diode-pumped Q-switched laser

Ping Yan, Mali Gong, Tao Xie, Xingzhan Liu

Author Affiliations +

Optical Engineering, Vol. 42, Issue 1, (January 2003). https://doi.org/10.1117/1.1522725

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.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Ping Yan, Mali Gong, Tao Xie, and Xingzhan Liu "Stabilization of pulse-to-pulse energy and width by gain-controlled prelase in laser-diode-pumped Q-switched laser," Optical Engineering 42(1), (1 January 2003). https://doi.org/10.1117/1.1522725

Published: 1 January 2003

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