Title :
All solid-state continuous-wave frequency-quadrupled Nd:YAG laser
Author :
Oka, Michio ; Yi Liu, Ling ; Wiechmann, Werner ; Eguchi, Naoya ; Kubota, Shigeo
Author_Institution :
Kubota Optoelectron. Lab., Sony Corp., Tokyo, Japan
fDate :
9/1/1995 12:00:00 AM
Abstract :
We report all solid-state, continuous-wave, high-power, deep ultraviolet generation. An intracavity frequency doubled Nd:YAG laser pumped by fiber-coupled diodes is used to generate the high-power green output. The significance of nonlinear coupling and spatial hole burning of the two-mode oscillations in the laser is discussed. When the incident 532 mn power on an external resonant doubler was 2.9 W, we generated 1.5 W of continuous-wave 266-nm radiation using a Czochralski-grown β-BaB2O4. To achieve stable external resonance, a novel voice coil motor actuator is employed with servo bandwidth as large as 50 kHz
Keywords :
barium compounds; laser cavity resonators; laser modes; neodymium; optical fibre couplers; optical harmonic generation; optical hole burning; optical pumping; solid lasers; β-BaB2O4; 1.5 W; 2.9 W; 266 nm; 50 kHz; 532 nm; BaB2O4; Czochralski-grown crystal; Nd:YAG laser; YAG:Nd; YAl5O12:Nd; continuous-wave radiation; external resonant doubler; fiber-coupled diodes; high-power deep ultraviolet generation; high-power green output; intracavity frequency doubled laser; nonlinear coupling; servo bandwidth; solid-state continuous-wave frequency-quadrupled Nd:YAG laser; spatial hole burning; stable external resonance; two-mode oscillation; voice coil motor actuator; Diodes; Fiber lasers; Frequency; Laser excitation; Optical coupling; Power generation; Pump lasers; Resonance; Solid lasers; Solid state circuits;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.473671
