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All solid-state continuous-wave frequency-quadrupled Nd:YAG laser

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5 Author(s)
Oka, M. ; Kubota Optoelectron. Lab., Sony Corp., Tokyo, Japan ; Ling Yi Liu ; Wiechmann, W. ; Eguchi, N.
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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

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:1 ,  Issue: 3 )