Title :
A compact high efficiency and high power regenerative amplifier
Author :
Ohmae, G. ; Yagi, T.
Author_Institution :
Dept. of Phys., Tokai Univ., Kanagawa, Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
Development of a compact terra watt (TW) laser system which has a high stability of pointing and output power is expected to create new applications of a short pulse laser in scientific and industrial field of research. We have investigated a cavity configuration of a Ti:sapphire regenerative laser amplifier to amplify a seed pulse with pulse energy of 1 nJ to more than 10 mJ of the pulse energy without damaging optical components in the cavity. The resonator in the regenerative amplifier is made of convex and concave mirror as end mirrors, so that the enlarged mode cross section matches the pump volume in the Ti:sapphire crystal, and additional concave mirror for collimating the beam passing through a Pockels cell in the cavity.
Keywords :
Pockels effect; laser cavity resonators; laser mirrors; laser mode locking; optical pumping; sapphire; solid lasers; titanium; 1 nJ to 10 mJ; Pockels cell; Ti:sapphire crystal; Ti:sapphire regenerative laser amplifier; additional concave mirror; cavity configuration; compact TW laser; concave mirror; convex mirror; end mirrors; enlarged mode cross section; high efficiency; high power regenerative amplifier; high stability; optical collimators; output power; pulse energy; pump volume; seed pulse; short pulse laser; High power amplifiers; Laser stability; Mirrors; Optical amplifiers; Optical pulses; Power amplifiers; Power generation; Power lasers; Pulse amplifiers; Repeaters;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811562
