CZOCHRALSKI GROWTH AND PROPERTIES OF YAlO3 LASER CRYSTALS

Weber, Marvin J.; Bass, Michael; Andringa, K.; Monchamp, R. R.; Comperchio, E.

doi:10.1063/1.1652851

Cited by 257 publications

(76 citation statements)

References 7 publications

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“…The X-ray tube with the copper anode operated at 35kV was used as an excitation source. The luminescence spectra, luminescence excitation spectra and emission time profiles under pulsed synchrotron excitation in the wavelength range of 50-300 uim were measured using experimental facilities of Superlumi station at Hasylab in Hamburg, Germany.1 3 …”

Section: Materials and Experimentsmentioning

confidence: 99%

<title>Radio- and VUV-excited luminescence of YAP:Ce, YAP:Pr and YAG:Pr</title>

et al. 2001

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In this Communication we report initial results of studies on X-ray and VUV excited luminescence of YAP and YAG crystals activated with Pr3+, and YAP activated with Ce3+. Excitation and luminescence spectra of Pr 3 + and Ce 3+ d-f and Pr 3 + f-f emissions and luminescence time profiles under pulsed synchrotron excitation are presented and analysed in order to identify and characterize various host-to-ion energy transfer channels. The results support the notion that direct and trap mediated capture and recombination of holes and electrons via Pr 3` or Ce 3 + ions provide the dominant mechanism of radioluminescence production in both YAP and YAG crystals.

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Section: Materials and Experimentsmentioning

confidence: 99%

<title>Radio- and VUV-excited luminescence of YAP:Ce, YAP:Pr and YAG:Pr</title>

et al. 2001

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“…Yttrium aluminium oxide (YAlO 3 ) is an attractive laser host for holmium due to its natural birefringence combined with good thermal (thermal conductivity of 11 W/m.K) and mechanical properties similar to those of YAG [7]. Because of the birefringence of character of the YAlO 3 , thermally induced birefringence does not degrade the laser performance at high power level, and linearly polarized output is favorable for acousto-optic Q-switched operation with high PRF.…”

Section: Introductionmentioning

confidence: 75%

Continuous-wave and Q-switched operation of a resonantly pumped Ho:YAlO_3 laser

Yao¹,

Duan²,

Zheng³

et al. 2008

Opt. Express

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Abstract:We demonstrated continuous-wave (CW) and Q-switched operation of a room-temperature Ho:YAlO 3 laser that is resonantly endpumped by a diode-pumped Tm:YLF laser at 1.91 μm. The CW Ho:YAlO 3 laser generated 5.5 W of linearly polarized ( E c ∥ ) output at 2118 nm with beam quality factor of M 2 ≈ 1.1 for an incident pump power of 13.8 W, corresponding to optical-to-optical conversion efficiency of 40%. Up to 1-mJ energy per pulse at pulse repetition frequency (PRF) of 5 kHz, and the maximum average power of 5.3-W with FWHM pulse duration of 30.5 ns at 20 kHz were achieved in Q-switched mode.

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“…Yttrium aluminium oxide (YAlO 3 , YAP) is an attractive laser host for holmium due to its natural birefringence combined with good thermal (thermal conductivity of 11 W/m K) and mechanical properties similar to those for a YAG [14]. Because of the birefringence character of the YAP, thermally induced birefringence does not degrade the laser performance at a high power level.…”

Section: Introductionmentioning

confidence: 99%

Holmium laser in-band pumped by a thulium laser in the same host of YAlO3

et al. 2008

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-We report on the room-temperature continuous-wave (CW) operation of a Ho:YAlO 3 laser that is resonantly end pumped at 1.94 µ m by a diode-pumped thulium-doped laser in the same host. Through the use of a 1 at % Ho 3+ -doped 20-mm-long YAlO 3 crystal ( b cut), the Ho:YAlO 3 laser generated 1 W of linearly polarized ( E //c) output at 2118 nm and 0.55 W of E //a output at 2128.5 nm for an incident pump power of 5 W, with an output coupler transmission of 14 and 3%, respectively. An optical-to-optical conversion efficiency of 20% and a slope efficiency of 33% were achieved at 2118 nm corresponding to an incident pump power.

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CZOCHRALSKI GROWTH AND PROPERTIES OF YAlO3 LASER CRYSTALS

Abstract: Czochralski growth characteristics of a new laser host crystal, YAlO3, and measurements of its optical, thermal, and mechanical properties are reported. Stimulated emission from Nd3+ in YAlO3 has been observed.

Cited by 257 publications

References 7 publications

<title>Radio- and VUV-excited luminescence of YAP:Ce, YAP:Pr and YAG:Pr</title>

<title>Radio- and VUV-excited luminescence of YAP:Ce, YAP:Pr and YAG:Pr</title>

Continuous-wave and Q-switched operation of a resonantly pumped Ho:YAlO_3 laser

Holmium laser in-band pumped by a thulium laser in the same host of YAlO3

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