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Proceedings Paper

Efficient diode-pumped Nd:KGW laser grown by top nucleated floating crystal method: Part II
Author(s): Yehoshua Y. Kalisky; Leonid Kravchik; Georges Boulon; G. Metrat; Alain Brenier; Milan R. Kokta
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Paper Abstract

Diode pumping of a laser-stress-free, Nd( 5 % at.):KGW, grown by top nucleated floating crystal (TNFC) method, is presented. The diode-pumped laser was operated both in the free-running and passively Q-switched operating modes. Under optimized conditions of resonator and optics, the Nd:KGW disk (1.3 mm in thickness), produced at room temperature an efficient free-running, TEM00 output with maximum power of 0.4-W, with 75 % slope efficiency and 51 % total laser efficiency. Under slightly different experimental conditions the laser was passively Q-switched by using Cr4+:YAG as saturable absorber. The passively Q-switched laser produced modulated pulses at average frequencies in the range of 10-20 kHz, with pulsewidth of ≈180 nsec, with an average output power obtained was 30 mW at the maximumpumping power level. The results presented here indicate the potential Nd:KGW crystals grown by TNFC growth method, as candidates for concentrated, stress free diode pumped microlasers in a large variety of wavelengths, including the eye-safe range.

Paper Details

Date Published: 8 July 2004
PDF: 8 pages
Proc. SPIE 5332, Solid State Lasers XIII: Technology and Devices, (8 July 2004); doi: 10.1117/12.529371
Show Author Affiliations
Yehoshua Y. Kalisky, Arava Laser Lab. (Israel)
Leonid Kravchik, Arava Laser Lab. (Israel)
Georges Boulon, Lab. de Physico-Chimie des Materiaux Luminescents, CNRS-Univ. Claude Bernard Lyon I (France)
G. Metrat, Lab. de Physico-Chimie des Materiaux Luminescents, CNRS-Univ. Claude Bernard Lyon I (France)
Alain Brenier, Lab. de Physico-Chimie des Materiaux Luminescents, CNRS-Univ. Claude Bernard Lyon I (France)
Milan R. Kokta, Saint-Gobain Crystals & Detectors (United States)


Published in SPIE Proceedings Vol. 5332:
Solid State Lasers XIII: Technology and Devices
Richard Scheps; Hanna J. Hoffman, Editor(s)

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