Efficient diode pumped Nd:KGW laser grown by top nucleated floating crystal method: Part II

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

doi:10.1117/12.529371

Efficient diode pumped Nd:KGW laser grown by top nucleated floating crystal method: Part II

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

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

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, TEM ₀₀ 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.

Original language	English
Pages (from-to)	28-35
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5332
DOIs	https://doi.org/10.1117/12.529371
State	Published - 13 Sep 2004
Externally published	Yes
Event	Solid State Lasers XIII: Technology and Devices - San Jose, CA, United States Duration: 27 Jan 2004 → 29 Jan 2004

Keywords

Diode pumped lasers
Nd:KGW
Passive Q-switching

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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title = "Efficient diode pumped Nd:KGW laser grown by top nucleated floating crystal method: Part II",

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, TEM 00 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.",

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T2 - Solid State Lasers XIII: Technology and Devices

AU - Kalisky, Y.

AU - Kravchik, L.

AU - Boulon, G.

AU - Metrat, G.

AU - Brenier, A.

AU - Kokta, M. R.

PY - 2004/9/13

Y1 - 2004/9/13

N2 - 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, TEM 00 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.

AB - 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, TEM 00 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.

KW - Diode pumped lasers

KW - Nd:KGW

KW - Passive Q-switching

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

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Efficient diode pumped Nd:KGW laser grown by top nucleated floating crystal method: Part II

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