1 J/pulse Q-switched 2 microm solid-state laser.
Q-switched output of 1.1 J/pulse at a 2.053 microm wavelength has been achieved in a diode-pumped Ho: Tm: LuLF laser with a side-pumped rod configuration in a master-oscillator-power-amplifier (MOPA) architecture. This is the first time to our knowledge that a 2 microm laser has broken the joule per pulse barrier for Q-switched operation. The total system efficiency reaches 5% and 6.2% for single- and double-pulse operation, respectively. The system produces an excellent 1.4 times transform-limited beam quality.
Yu
Jirong
J
NASA Langley Research Center, Mail Stop 468, Hampton, Virginia 23681, USA. jirong.yu@larc.nasa.gov
Trieu
Bo C
BC
Modlin
Ed A
EA
Singh
Upendra N
UN
Kavaya
Michael J
MJ
Chen
Songsheng
S
Bai
Yingxin
Y
Petzar
Pual J
PJ
Petros
Mulugeta
M