1.
Opt Lett
; 28(21): 2106-8, 2003 Nov 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-14587830
RESUMEN
Micro-optic technology is used in a terawatt multipass Ti:sapphire amplifier to convert high-multimode, 532-nm radiation from an unstable resonator Nd:YAG laser into a TEM00 amplified output without sacrificing the amplifier-to-pump energy conversion efficiency. Experimental measurements and Fourier analysis of the spatial mode show a 3.8-fold increase in the peak irradiance and an order-of-magnitude improvement in the spatial contrast.