High power, end pumped laser with off-peak pumping

Details High power, end pumped laser with off-peak pumping High power, end pumped laser with off-peak pumping

H - Electricity

01

S

H01S 3/11 (2006.01)

Patent

CA 2627418

A laser configuration producing up to 100's of Watts of output is provided, based on a solid-state gain medium, a source of pump energy which is detuned from the maximum absorption wavelength for the gain medium, and optics arranged to deliver the pump energy through an end of the gain medium to propagate along the length of the gain medium. The length of the gain medium and the doping concentration in the gain medium are sufficient the absorption length is on the order of lO's of millimeters, and more than 1/3 of the length, and that 90 percent or more of the pump energy is absorbed within two or fewer passes of the gain medium. A pump energy source that supplies 100 Watts to 1000 Watts or more.

L'invention concerne une configuration laser produisant jusqu'à 100 watt de puissance, sur la base d'un milieu de gain à l'état solide, d'une source d'énergie de pompe désyntonisée de la longueur d'onde d'absorption maximale du milieu de gain, et d'une optique conçue pour délivrer l'énergie de pompe par une extrémité du milieu de gain se propageant sur la longueur du milieu de gain. La longueur du milieu de gain et la concentration de dopage dans ledit milieu sont suffisantes, la longueur d'absorption étant de l'ordre de 10 millimètres, et plus de 1/3 de la longueur, et au moins 90 % de l'énergie de pompe étant absorbée en deux passages au maximum du milieu de gain. L'invention concerne une énergie de pompe qui fournit au moins 100 à 1000 watts.

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