Title :
Intracavity 1.549-μm pumped 1.634-μm Er:YAG lasers at 300 K
Author :
Spariosu, Kalin ; Birnbaum, Milton
Author_Institution :
Center for Laser Studies, Univ. of Southern California, Los Angeles, CA, USA
fDate :
4/1/1994 12:00:00 AM
Abstract :
A novel method of generating 1.634-μm laser action from Er:YAG crystals pumped intracavity by an Er:glass laser emitting at 1.549 μm is described. Operation of the Er:glass laser at 1.549 μm (red shifted from the standard 1.532 μm, but with comparable output) at 500 K was obtained using mirrors with tailored spectral reflectivities. Several Er:YAG crystals ranging in concentration from 0.3% to 2% and in length from 1 cm to 8 cm were lased in the intracavity pumping arrangement. All the Er:YAG crystals lased in the 4I13/2 :Y1(6544 cm-1)-4I15/2:Z6(424 cm -1) 1.634-μm transition at 300 K
Keywords :
erbium; laser cavity resonators; laser transitions; optical pumping; solid lasers; 1 to 8 cm; 1.549 mum; 1.634 mum; 300 K; Er:YAG crystals; Er:YAG lasers; Er:glass laser; YAG:Er; YAl5O12:Er; concentration; intracavity pumping arrangement; laser action; length; mirrors; tailored spectral reflectivities; transition; Absorption; Crystals; Glass; Laser excitation; Laser modes; Laser theory; Laser transitions; Mirrors; Neodymium; Pump lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
