Accession Number : AD1009239


Title :   Cryogenic Yb: YAG Thin-Disk Laser


Descriptive Note : Journal Article,01 Aug 2011,01 Aug 2011


Corporate Author : University of New Mexico Albuquerque United States


Personal Author(s) : Vretenar,N ; Carson,T ; Lucas,T ; Newell ,T ; Latham,W P ; Peterson,P ; Bostanci,H ; Lindauer,J J ; Saarloos,B A ; Rini,D P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1009239.pdf


Report Date : 09 Sep 2016


Pagination or Media Count : 11


Abstract : At cryogenic temperatures, Yb:YAG behaves as a 4-level laser. Its absorption and emission cross-sections increase, and its thermal conductivity improves. Yb:YAG thin disk laser performance at room and cryogenic (80 deg. K) temperatures will be presented. The Yb:YAG gain media is cooled using either a pressurized R134A refrigerant system or by a two-phase liquid nitrogen spray boiler. Interchangeable mounting caps allow the same Yb:YAG media to be switched between the two systems. This allows direct comparison of lasing, amplified spontaneous emission, and temperature performance between 20 deg. C and -200 deg. C.


Descriptors :   Laser materials , YTTERBIUM , YBYAG LASERS , SOLID STATE LASERS , TEMPERATURE , CRYOGENIC COOLING , Optical materials


Distribution Statement : APPROVED FOR PUBLIC RELEASE