Title :
6 W, 5 mJ amplification with a 28% efficient, kHz, Ti:sapphire regenerative amplifier
Author :
Yang, J.Z.H. ; Chowdhury, E.A. ; Walker, B.C.
Author_Institution :
Dept. of Phys. & Astron., Delaware Univ., Newark, DE, USA
Abstract :
Summary form only given. Sumamry form only given. We use laser design methodology provides the highest energy from a regenerative amplifier possible with a modern pump laser (Quantronix 527 DQ) and minimizes the spectral and phase distortion for a regeneratively amplified ultrafast pulse. In most high-power laser systems, the regenerative amplifier is only a preamplifier that is followed by a multipass amplifier to increase the pulse energy to the several millijoule level. Our regenerative amplifier, however, produces 6 watts of average power at 2 kHz or 5 mJ of pulse energy at 1 kHz. We are aware of no previous Ti:sapphire regenerative amplifier whose average power exceeds 1.5 watts. The regenerative amplifier is a symmetric, two-rod, ring cavity that is stable with pump powers from 0 watts (single shot) to >28 watts.
Keywords :
laser cavity resonators; optical design techniques; optical focusing; optical pumping; ring lasers; sapphire; solid lasers; symmetry; titanium; 28 percent; 5 mJ; 6 W; Quantronix 527 DQ; Ti:sapphire regenerative amplifier; average power; high-power laser systems; laser design methodology; laser stability; modern pump laser; multipass amplifier; phase distortion; preamplifier; pulse energy; pump powers; regenerative amplifier; regeneratively amplified ultrafast pulse; ring cavity; two-rod; Design methodology; High power amplifiers; Laser excitation; Laser modes; Laser noise; Optical pulses; Phase distortion; Power amplifiers; Pulse amplifiers; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907026
