TI-SAPPHIRE AMPLIFIER PRODUCING MILLIJOULE-LEVEL, 21-FS PULSES AT 1 KHZ

Citation
S. Backus et al., TI-SAPPHIRE AMPLIFIER PRODUCING MILLIJOULE-LEVEL, 21-FS PULSES AT 1 KHZ, Optics letters, 20(19), 1995, pp. 2000-2002
Citations number
10
Categorie Soggetti
Optics
Journal title
ISSN journal
01469592
Volume
20
Issue
19
Year of publication
1995
Pages
2000 - 2002
Database
ISI
SICI code
0146-9592(1995)20:19<2000:TAPM2P>2.0.ZU;2-S
Abstract
We have developed a Ti:sapphire amplifier system capable of producing pulses of 1 mJ, with 20-22-fs pulse duration, at a 1-kHz repetition ra te. The amplifier has a unique design consisting of a three-mirror mul tipass ring configuration with a highly doped Ti:sapphire crystal as t he gain medium. Pulses of 15-fs duration from a Ti:sapphire oscillator are temporally stretched and injected into the amplifier, which is an eight-pass system with a total gain of 10(6). The amplifier is more t han 10% efficient, and the shot-to-shot energy fluctuation of the outp ut is less than 2%. The output beam focuses to 1.8 times the diffracti on limit. (C) 1995 Optical Society of America