Diode-pumped Yb:KYW thin-disk laser operation with wavelength tuning to small quantum defects

Hildebrandt, Matthias; Bünting, Udo; Kosch, Ute; Haussmann, D.; Levy, Tony; Krause, Michael; Muller, O.; Bartuch, U.; Viöl, Wolfgang

doi:10.1016/j.optcom.2005.09.021

Cited by 21 publications

(7 citation statements)

References 5 publications

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“…1 [20]) is rather low, it can be enhanced if the crystal is put inside the cavity operating at 912 nm to take benefit from the high intracavity power.…”

Section: Principle and Experimental Setupmentioning

confidence: 99%

981 nm Yb:KYW laser intracavity pumped at 912 nm and frequency-doubling for an emission at 490.5 nm

Zhang

Xia

et al. 2010

Laser Phys. Lett.

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We present an Yb:KY(WO 4 ) 2 (Yb:KYW) laser emitting at 981 nm intracavity pumped by a 912 nm diode-pumped Nd:GdVO 4 laser. A 808 nm diode laser is used to pump the Nd:GdVO 4 crystal emitting at 912 nm, and the Yb:KYW laser emitting at 981 nm intracavity pumped at 912 nm. This configuration enabled us to indirectly diode-pump this ytterbium doped crystal, and to obtain 1.12 W output power at 981 nm for 19.6 W of incident pump power at 808 nm. Furthermore, intracavity second harmonic generation has also been demonstrated with a power of 106 mW at 490.5 nm by using a LBO nonlinear crystal.

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“…1 [20]) is rather low, it can be enhanced if the crystal is put inside the cavity operating at 912 nm to take benefit from the high intracavity power.…”

Section: Principle and Experimental Setupmentioning

confidence: 99%

981 nm Yb:KYW laser intracavity pumped at 912 nm and frequency-doubling for an emission at 490.5 nm

Zhang

Xia

et al. 2010

Laser Phys. Lett.

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“…Moreover, like in most Yb 3+ -doped laser hosts, additional advantages are low quantum defects, relatively high doping concentrations without significant lifetime quenching, and readily available high-brightness pumping diode lasers for end pumping. As a result, efficient microcavity cw lasers [1], tunable lasers [2,3], and mode-locked lasers have been realized in monoclinic and tetragonal double tungstates [4,5]. Furthermore, the monoclinic double tungstates such as KY͑WO 4 ͒ 2 , KGd͑WO 4 ͒ 2 (KGW), and KLu͑WO 4 ͒ 2 have highly anisotropic optical, mechanical, and thermal properties [6,7].…”

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confidence: 99%

Polarization-tunable Yb:KGW laser based on internal conical refraction

et al. 2007

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Using internal conical refraction, we demonstrate an Yb:KGW laser where the polarization state can be arbitrarily altered without any additional cavity components. The extinction ratio can also be altered between 1:1 and 40:1. The maximum output power achieved was 8.6 W at a slope efficiency of 60.5% with respect to incident pump power. This equals the power performance of a standard Yb:KGW laser used for reference.

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“…2 Thin-disk laser has also been demonstrated for Yb-doped KYW in freestanding thin layers. 3,4 More recently, also guided Yb 3+ and Tm 3+ ion lasers have been demonstrated for epitaxial layers of these materials grown on KYW substrates, [5][6][7][8][9] even when those layers were produced by segmented growth 10 or by diffusion bonding. 11 In this study, we evaluate the quality of epitaxial layers to be used in thin-disk and other laser configurations using synchrotron white-beam x-ray topography (SWBXT) and correlate the defects with growth conditions as well as with laser performance.…”

Section: Introductionmentioning

confidence: 99%

Synchrotron X-Ray Topography Study of Structural Defects and Strain in Epitaxial Structures of Yb- and Tm-Doped Potassium Rare-Earth Double Tungstates and Their Influence on Laser Performance

Raghothamachar

Carvajal

Pujol

et al. 2010

Journal of Elec Materi

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Monoclinic potassium rare-earth double tungstates [KRE(WO 4 ) 2 , RE = Y, Lu, Yb; KREW] are well suited as hosts for active lanthanide ion (Ln 3+ ) dopants for diode-pumped solid-state lasers, with particular interest in thin-disk laser configurations when they are grown as thin films. Using synchrotron whitebeam x-ray topography, we have imaged defects and strain in top-seeded solution-grown (TSSG) bulk substrates of different rare-earth tungstates as well as within Yb 3+ -and Tm 3+ -doped epitaxies for thin-disk laser applications grown on these substrates by liquid-phase epitaxy. Higher structural stress in Yb:KYW/KYW epitaxies compared with Yb:KLuW/KLuW epitaxies is found to lower efficiency in laser operation. The quality of Tm:KLuW/KLuW epitaxial films is sensitive to doping level, film thickness, and growth rate. Inhomogeneous stresses within the layers are dominated by lattice-mismatch effects rather than by crystallographic anisotropy.

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Diode-pumped Yb:KYW thin-disk laser operation with wavelength tuning to small quantum defects

Cited by 21 publications

References 5 publications

981 nm Yb:KYW laser intracavity pumped at 912 nm and frequency-doubling for an emission at 490.5 nm

981 nm Yb:KYW laser intracavity pumped at 912 nm and frequency-doubling for an emission at 490.5 nm

Polarization-tunable Yb:KGW laser based on internal conical refraction

Synchrotron X-Ray Topography Study of Structural Defects and Strain in Epitaxial Structures of Yb- and Tm-Doped Potassium Rare-Earth Double Tungstates and Their Influence on Laser Performance

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