Title :
High-pulse-energy ultraviolet Ce:LLF and Ce:LiCAF lasers using CZ-grown large-size crystals and new cavity configuration
Author :
Zhenlin Liu ; Shimamura, Kohei ; Nakano, Kaoru ; Mujilatu, N. ; Fukuda, Toshio ; Kozeki, T. ; Ohtake, H. ; Sarukura, N.
Author_Institution :
Inst. of Mater. Res., Tohoku Univ., Sendai, Japan
Abstract :
Summary form only given. Ce/sup 3+/:LiCaAlF/sub 6/ (Ce:LiCAF) and Ce/sup 3+/:LiLuF/sub 4/ (Ce:LLF) have been identified to be efficient and convenient ultraviolet (UV) lasing media. We have demonstrated an all-solid-state tunable Ce:LLF laser pumped by the fifth harmonic of an Nd:YAG laser. We have also demonstrated an efficient Ce:LiCAF MOPA system. Previously, the output energy was limited by available crystal sizes. Therefore, we grow larger crystals up to about 1-inch diameter by Czochralski (CZ) method. In this presentation, we report the generation of 27-mJ pulse from a Ce:LLF oscillator and 60-mJ pulse from a Ce:LiCAF oscillator using large-size Ce:fluoride crystals. Furthermore, a new pumping configuration with pumping at Brewster angles on the disk-shaped crystal was designed.
Keywords :
cerium; crystal growth from melt; laser cavity resonators; laser tuning; optical harmonic generation; optical pumping; solid lasers; 1 in; 27 mJ; 60 mJ; Brewster angles; CZ-grown large-size crystals; Ce/sup 3+/:LiCaAlF/sub 6/; Ce/sup 3+/:LiLuF/sub 4/; Ce:LLF oscillator; Ce:LiCAF MOPA system; Ce:LiCAF oscillator; Czochralski method; LiCaAlF/sub 6/:Ce; LiLuF/sub 4/:Ce; Nd:YAG laser; UV lasing media; YAG:Nd; YAl5O12:Nd; available crystal sizes; cavity configuration; disk-shaped crystal; fifth harmonic; high-pulse-energy UV lasers; large-size Ce:fluoride crystals; mJ pulse; output energy; Couplings; Crystals; Laser excitation; Lenses; Optical propagation; Optical pulses; 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.2000.906676
