Title :
8-12 micron OPO pumped by a 2.09-micron holmium laser
Author :
Chandra, Swarup ; Wager, M.E. ; Allik, T.H. ; Hovis, W.W.
Author_Institution :
Sci. Applications Int. Corp., Dayton, OH, USA
Abstract :
Summary form only given. There is a great need to develop continuously tunable coherent sources for chemical sensing lidar applications in the 8-12-/spl mu/m atmospheric transmission window. Many different optical parametric oscillator (OPO) schemes have been attempted to meet this need. Desirable properties for such an OPO include; continuously tunability, good beam quality and conversion efficiency, single-stage OPO conversion and a high moderate repetition rate. The paper presents an OPO that meets most of these requirements. The OPO is based on a silver gallium selenide (AgGaSe/sub 2/) crystal in a specially designed resonator pumped in a single step by a 2.088 /spl mu/m Ho:YAG laser.
Keywords :
gallium compounds; infrared sources; optical materials; optical parametric oscillators; optical phase matching; optical pumping; optical tuning; silver compounds; ternary semiconductors; 2.088 mum; 2.09 mum; 8 to 12 mum; AgGaSe/sub 2/; Ho:YAG laser; YAG:Ho; YAl5O12:Ho; atmospheric transmission window; beam quality; chemical sensing lidar applications; continuously tunability; continuously tunable coherent sources; conversion efficiency; moderate repetition rate; optical parametric oscillator schemes; single-stage OPO conversion; specially designed resonator; Chemical lasers; Laser excitation; Laser radar; Nonlinear optics; Optical pumping; Optical resonators; Optical sensors; Oscillators; Pump lasers; Tunable circuits and devices;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907302
