Title :
Ultraviolet femtosecond pulse amplification using Ce/sup 3+/:LiCaAlF/sub 6/ crystal as gain medium
Author :
Liu, Zhe ; Kozeki, T. ; Suzuki, Yuya ; Sarukura, N. ; Shimamura, Kohei ; Fukuda, Toshio ; Hirano, Masahiro ; Hosono, Hideo
Author_Institution :
Hosono Transparent Electro-Active Mater. Project, Japan Sci. & Technol. Corp., Kawasaki, Japan
Abstract :
Summary form only given. There have been continuous efforts for obtaining high-peak-power, femtosecond, ultraviolet pulses. The solid-state ultraviolet laser medium Ce/sup 3+/:LiCaAlF/sub 6/ (Ce:LiCAF) was shown to have broad tunability from 281 nm to 315 nm corresponding to the bandwidth of a 3-fs pulse. Additionally, it has a high saturation fluence of 115 mJ/cm/sup 2/. For the future terawatt Ce:LiCAF chirped pulse amplification (CPA) laser system, we have successfully grown a 5-cm diameter Ce:LiCAF crystal. In this presentation, we report high-gain confocal four-pass amplification and chirped pulse amplification in the ultraviolet region using Ce:LiCAF The CPA amplifier has 370-times gain and delivers 6-mJ, 290-nm pulses.
Keywords :
cerium; chirp modulation; optical pulse compression; optical pulse generation; solid lasers; 290 nm; 6 mJ; Ce/sup 3+/:LiCaAlF/sub 6/ crystal; LiCaAlF/sub 6/:Ce; autocorrelation curve; broadband laser medium; chirped pulse amplification; compressed amplified pulse; dispersion compensation; high-gain confocal four-pass amplification; high-peak-power ultraviolet pulses; solid-state ultraviolet laser; terawatt laser system; ultraviolet femtosecond pulse amplification; Chirp; Crystalline materials; Laser excitation; Materials science and technology; Optical materials; Optical pulses; Pulse amplifiers; Pulse measurements; Pump lasers; Solid state circuits;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.948099
