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Conference Papers Year : 2008

Diode pumping of Nd:ASL and its frequency doubling for blue emission around 450 nm

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Abstract

We present the diode pumping of a Nd-doped strontium and lanthanum (Nd:ASL) crystal Sr1-xLax-yNdyMgxAl12-xO19 (0.05 ≤ x ≤ 0.5; y = 0.05) for second harmonic generation around 450 nm. In order to fulfill the pumping requirements of this crystal, we have developed a high-brightness pump source based on a tapered amplifier in an extended cavity with a volume Bragg grating for wavelength stabilization. A pump brightness of 110 MW.cm-2sr-1 has been obtained with a linewidth lower than 80 pm at 798 nm. This laser source has been used to pump a Nd:ASL crystal to obtain 300 mW at 906 nm and 53 mW at 453 nm by intracavity doubling with a LBO crystal.
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hal-00531355 , version 1 (02-11-2010)

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David Pabœuf, Gaëlle Lucas-Leclin, Patrick Georges, Bernd Sumpf, Götz Erbert, et al.. Diode pumping of Nd:ASL and its frequency doubling for blue emission around 450 nm. Photonics West - LASE 2008, Jan 2008, San Jose, United States. pp.87112, ⟨10.1117/12.769125⟩. ⟨hal-00531355⟩
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