Timing Jitter and Pulse Width Reduction in a Hybrid Q-Switched Cr,Nd:YAG Laser
WANG Xue-Jun1,2, XU Zu-Yan1
1Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 2Graduate School of the Chinese Academy of Sciences, Beijing 100049
Timing Jitter and Pulse Width Reduction in a Hybrid Q-Switched Cr,Nd:YAG Laser
WANG Xue-Jun1,2;XU Zu-Yan1
1Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 2Graduate School of the Chinese Academy of Sciences, Beijing 100049
We present a detailed study of a combined actively and passively Q-switched (CAPQ) laser with an acousto-optic modulator (AOM) and a codoped Cr4+, Nd3+:YAG crystal. The hybrid Q-switch approach is used to produce a short laser pulse with stable and tunable repetition rates. The timing jitter, average pulse width, and average pulse amplitude vary periodically with the AOM modulation frequency under a fixed pump power. The repetition rate of the CAPQ laser can be turned approximately from 4kHz to 16kHz with the jitter less than 400ns.
2006, Vol. 23 
