Single-frequency operation of diode-pumped 2 microm Q-switched Tm:YAG laser injection seeded by monolithic nonplanar ring laser.
We present a diode-pumped, 2mum single-frequency Q-switched Tm:YAG laser. The Q-switched laser is injection seeded by a monolithic Tm:YAG nonplanar ring oscillator with the ramp-hold-fire technique. The output energy of the 2mum single-frequency Q-switched pulse is 2.23mJ, with a pulse width of 290ns and a repetition rate of 200Hz. From the heterodyne beating measurement, the frequency difference between the seed laser and the Q-switched laser is determined to be 37.66MHz, with a half-width of the symmetric spectrum of about 2 MHz.
Gao
Chunqing
C
School of Opto-Electronics, Beijing Institute of Technology, Beijing 100081, China.
Lin
Zhifeng
Z
Gao
Mingwei
M
Zhang
Yunshan
Y
Zhu
Lingni
L
Wang
Ran
R
Zheng
Yan
Y