Title :
A high-output, high efficiency femtosecond laser based on a single-stage multipass amplifier
Author :
Shan, Bing ; Wang, Chun ; Chang, Zenghu
Author_Institution :
Dept. of Phys., Kansas State Univ., Manhattan, KS
Abstract :
A kilohertz laser producing 4 mJ pulses with 25 fs duration and 26% conversion efficiency was developed using a single-stage multi-pass amplifier. The laser signal spot size inside the Ti:sapphire gain medium was changed in a unique way to obtain high gain and high efficiency without damaging the crystal. To the best of our knowledge, this is the highest pulse energy ever obtained from kHz lasers with a single-stage multi-pass amplifier
Keywords :
optical pulse generation; solid lasers; titanium; 25 fs; 4 mJ; Al2O3:Ti; Ti:sapphire gain medium; femtosecond laser; high efficiency laser; high-output laser; kilohertz laser; laser signal spot size; multipass amplifier; optical crystal; single-stage amplifier;
Conference_Titel :
Quantum Electronics Conference, 2004. (IQEC). International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-778-4
