Efficient diode-pumped Nd:KGd(WO4)2 laser grown by top nucleated floating crystal method

G. Boulon; G. Metrat; N. Muhlstein; A. Brenier; M. R. Kokta; L. Kravchik; Y. Kalisky

doi:10.1016/S0925-3467(03)00151-4

Efficient diode-pumped Nd:KGd(WO₄)₂ laser grown by top nucleated floating crystal method

G. Boulon, G. Metrat, N. Muhlstein, A. Brenier, M. R. Kokta, L. Kravchik, Y. Kalisky

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Diode pumping of a stress-free, Nd(5 at.%):KGd(WO₄) ₂, 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 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 ns, with an average output power obtained was 30 mW at the maximum pumping power level. The results presented here indicate the potential Nd:KGd(WO₄)₂ 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.

Original language	English
Pages (from-to)	377-383
Number of pages	7
Journal	Optical Materials
Volume	24
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-3467(03)00151-4
State	Published - 1 Jan 2003
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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title = "Efficient diode-pumped Nd:KGd(WO4)2 laser grown by top nucleated floating crystal method",

abstract = "Diode pumping of a stress-free, Nd(5 at.%):KGd(WO4) 2, 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 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 ns, with an average output power obtained was 30 mW at the maximum pumping power level. The results presented here indicate the potential Nd:KGd(WO4)2 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.",

author = "G. Boulon and G. Metrat and N. Muhlstein and A. Brenier and Kokta, {M. R.} and L. Kravchik and Y. Kalisky",

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T1 - Efficient diode-pumped Nd:KGd(WO4)2 laser grown by top nucleated floating crystal method

AU - Boulon, G.

AU - Metrat, G.

AU - Muhlstein, N.

AU - Brenier, A.

AU - Kokta, M. R.

AU - Kravchik, L.

AU - Kalisky, Y.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - Diode pumping of a stress-free, Nd(5 at.%):KGd(WO4) 2, 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 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 ns, with an average output power obtained was 30 mW at the maximum pumping power level. The results presented here indicate the potential Nd:KGd(WO4)2 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.

AB - Diode pumping of a stress-free, Nd(5 at.%):KGd(WO4) 2, 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 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 ns, with an average output power obtained was 30 mW at the maximum pumping power level. The results presented here indicate the potential Nd:KGd(WO4)2 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.

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Efficient diode-pumped Nd:KGd(WO₄)₂ laser grown by top nucleated floating crystal method

Abstract

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