DocumentCode :
2926151
Title :
Optimization of resonant ring cavity for fourth-harmonic generation of a Nd:YLF laser
Author :
Kuczewski, A.J. ; Shaw, Matthew D. ; Thorn, C.E.
Author_Institution :
Dept. of Phys., Brookhaven Nat. Lab., Upton, NY, USA
fYear :
2000
fDate :
7-12 May 2000
Firstpage :
405
Abstract :
Summary form only given. We have constructed a single ring to resonantly double an 18-W Nd:YLF mode-locked laser and re-double the stored green beam to produce a nearly-diffraction-limited ultraviolet (UV) beam of 4.2 W at 263 nm. The IR output of the pump laser is coupled to the slave cavity via a mode-matching telescope, which produces a waist inside the first doubling crystal, a 15-mm-long non-critically phased matched lithium triborate (LBO) crystal. The ring consists of six mirrors, with two 25-cm radius of curvature mirrors enclosing each nonlinear crystal, and two plane mirrors, which fold the ring. The second SHG crystal is a type I critically phased-matched /spl beta/-barium borate (BBO) crystal that converts the 526-nm beam into 263-nm light, which exits the cavity through one of the 25-cm ROC mirrors. The unconverted 526-nm light is re-circulated back to the LBO crystal where it is coherently enhanced by the next input IR pulse.
Keywords :
barium compounds; laser beams; laser cavity resonators; laser mirrors; laser mode locking; lithium compounds; neodymium; optical harmonic generation; optical materials; optical phase matching; optimisation; ring lasers; solid lasers; 15 mm; 18 W; 263 nm; 4.2 W; 526 nm; BBO; BaB/sub 2/O/sub 4/; BaB2O4; IR output; LiB/sub 3/O/sub 5/; LiYF/sub 4/:Nd; Nd:LiYF/sub 4/ laser; SHG crystal; fourth-harmonic generation; input IR pulse; mode-locked laser; mode-matching telescope; nearly-diffraction-limited ultraviolet beam; optimization; pump laser; resonant ring cavity; slave cavity; stored green beam; Laser beams; Laser excitation; Laser mode locking; Lithium compounds; Mirrors; Optical coupling; Pump lasers; Resonance; Ring lasers; Telescopes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
Type :
conf
DOI :
10.1109/CLEO.2000.907178
Filename :
907178
Link To Document :
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