Experimental study of a broad-band XeCl double-pass amplifier with SBS mirror

✍ Scribed by A. A. Filippo; M. R. Perrone

• Publisher: Springer
• Year: 1992
• Tongue: English
• Weight: 629 KB
• Volume: 55
• Category: Article
• ISSN: 0721-7269
• DOI: 10.1007/bf00348617

✦ Synopsis

An oscillator-amplifier XeC1 laser system has been used to experimentally investigate the effectiveness of a liquid stimulated Brillouin scattering (SBS) mirror for correcting the spatial aberrations of broad-band laser radiation in a double-pass amplifier. It has been found that the SBS amplifier performance is strongly dependent on the intensity Ip exciting the Brillouin medium. A good beam reconstruction has been attained at Ip _< 1 GW/cm 2, whereas highly aberrated output beams have been delivered by the SBS amplifier for Ip > 1 GW/cm 2. By comparing the broad-band SBS amplifier performance to that of the same amplifier with a dielectrically coated flat mirror at one end, it has been found that the use of a SBS mirror is advantageous to obtain lower divergence output beams only for low energy pump beams (< 1 mJ).