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

David Paboeuf; Gaëlle Lucas-Leclin; Patrick Georges; Bernd Sumpf; Götz Erbert; Cyrille Varona; Pascal Loiseau; Gérard Aka; Bernard Ferrand

doi:10.1117/12.769125

5 March 2008 Diode pumping of Nd:ASL and its frequency doubling for blue emission around 450 nm

David Paboeuf, Gaëlle Lucas-Leclin, Patrick Georges, Bernd Sumpf, Götz Erbert, Cyrille Varona, Pascal Loiseau, Gérard Aka, Bernard Ferrand

Author Affiliations +

Proceedings Volume 6871, Solid State Lasers XVII: Technology and Devices; 68711P (2008) https://doi.org/10.1117/12.769125
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

We present the diode pumping of a Nd-doped strontium and lanthanum (Nd:ASL) crystal Sr_1-xLa_x-yNd_yMg_xAl_12-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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David Paboeuf, Gaëlle Lucas-Leclin, Patrick Georges, Bernd Sumpf, Götz Erbert, Cyrille Varona, Pascal Loiseau, Gérard Aka, and Bernard Ferrand "Diode pumping of Nd:ASL and its frequency doubling for blue emission around 450 nm", Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 68711P (5 March 2008); https://doi.org/10.1117/12.769125

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