Collection Of theses on high power laser and plasma physics, 2013, 11 (1): 014202, Published Online: Jun. 2, 2017
Research on High-Intensity Picosecond Pump Laser in Short Pulse Optical Parametric Amplification
Abstract
A 527nm pump laser generating 1.7mJ energy with peak power of more than 0.12GW is demonstrated. The theoretical simulation result shows that it has 106 gain in the picosecond-pump optical parametric chirped pulse amplification when the pump laser peak power is 0.1GW and the intensity is more than 5GW/cm2, and that it can limit the parametric fluorescence in the picosecond time scale of pump duration. The pump laser system adopts a master-oscillator power amplifier, which integrates a more than 30 pJ fiber-based oscillator with a 150 μJ regenerative amplifier and a relay-imaged four-pass diode-pump Nd glass amplifier to generate a 1 Hz top hat spatial beam and about 14 ps temporal Guassian pulse with <2% pulse-to-pulse energy stability. The output energy of the power amplifier is limited to 4mJ for B-integral concern, and the frequency doubling efficiency can reach 65% with input intensity 10GW/cm2.
PAN Xue, PENG Yu-Jie, WANG Jiang-Feng, LU Xing-Hua, OUYANG Xiao-Ping, CHEN Jia-Lin, JIANG You-En, FAN Wei, LI Xue-Chun. Research on High-Intensity Picosecond Pump Laser in Short Pulse Optical Parametric Amplification[J]. Collection Of theses on high power laser and plasma physics, 2013, 11(1): 014202.