Chirped-pulse amplification of ultraviolet femtosecond pulses by use of Ce3+: LiCaAlF6 as a broadband, solid-state gain medium

摘要

Chirped-pulse amplification in the ultraviolet region is demonstrated by use of a broadband Ce3+:LiCaAlF6 laser medium. A modified bow-tie-style four-pass amplifier pumped by 100-mJ, 266-nm pulses from a Q-switched Nd:YAG laser has a gain factor of 370 and delivers 6-mJ, 290-nm pulses. After dispersion compensation, the output pulses can be compressed to 115 fs. (C) 2001 Optical Society of America. [References: 19]