Title :
2-micron laser development for space-based remote sensing applications
Author :
Singh, U.N. ; Yu, Jirong
Author_Institution :
NASA Langley Res. Center, Hampton, VA, USA
Abstract :
The design and performance of a diode pumped Tm sensitized Ho:LuLiF/sub 4/ (LuLF) laser oscillator and double-pass Tm:Ho:YLF laser amplifiers are described. The oscillator produced 135-mJ of Q-switched output, which represents a slope efficiency of 0.09. To our knowledge this is the highest Q-switched output for this material. The output energy of double-pass amplifier was improved by 75% compared to single-pass amplifier, and 380-mJ single pulse energy and 630-mJ double pulse energy have been achieved with high efficiency.
Keywords :
Q-switching; holmium; lithium compounds; lutetium compounds; oscillators; pulse amplifiers; remote sensing by laser beam; semiconductor laser arrays; thulium; yttrium compounds; 135 mJ; 2 micron; 2-micron laser development; 380 mJ; 630 mJ; LiYF4:Tm,Ho; LuLiF/sub 4/:Tm,Ho; Q-switched output; YLF:Tm,Ho; diode pumped Tm sensitized Ho LuLiF/sub 4/ laser oscillator; double pass Tm:Ho:YLF laser amplifier; slope efficiency; space based remote sensing; Diodes; Laser excitation; Optical amplifiers; Optical design; Optical pulses; Optical transmitters; Oscillators; Pulse amplifiers; Pump lasers; Remote sensing;
Conference_Titel :
Recent Advances in Space Technologies, 2003. RAST '03. International Conference on. Proceedings of
Conference_Location :
Istanbul, Turkey
Print_ISBN :
0-7803-8142-4
DOI :
10.1109/RAST.2003.1303964
