Hundreds picosecond strong short-wavelength pulses have been generated by a backward Raman oscillator amplifier pumped with a 10-J KrF laser from Heaven-1 MOPA system. Not only high power but also high energy laser pulses have been obtained with an energy conversion efficiency up to 17%. 640-picosecond pulse duration was observed in our experiments by a 1.5-GHz-bandwidth oscilloscope corresponding to 34 times of pulse compression rate.
© 2005 Chinese Optics Letters
Zhenhuan Ye, Qihong Lou, Jingxing Dong, Yunrong Wei, and Lei Ling, "Sub-nanosecond strong pulse generated by backward Raman scattering," Chin. Opt. Lett. 1, 406-407 (2003)