Klein M E, Adel P, Auerbach M, Fallnich C, Gross P, Boller K J
Nederlands Centrum voor Laser Research b.v., PO Box 2662, 7500 CR Enschede, The Netherlands.
Opt Lett. 2003 Nov 15;28(22):2222-4. doi: 10.1364/ol.28.002222.
We report on what is to our knowledge the first optical parametric oscillator (OPO) pumped by microsecond pulses from a wavelength-tunable solid-state laser. The singly resonant OPO (SRO) is based on a periodically poled LiNbO3 crystal and pumped with 2.1-micros-long pulses from an actively Q-switched Yb fiber laser. At an average fiber laser power of 3.6 W, the SRO generates 1.9-micros-long pulses with a repetition rate of 25 kHz and an average power of 560 mW at 3360 nm. The SRO was tuned from 1518 to 1634 nm (signal) and from 3145 to 3689 nm (idler) via the crystal temperature and poling period. By all-electronic tuning of the fiber laser wavelength over 19 nm, tuning of the mid-infrared idler wavelength over 195 nm was achieved.
据我们所知，我们报道了首个由波长可调谐固态激光器产生的微秒脉冲泵浦的光学参量振荡器（OPO）。单共振OPO（SRO）基于周期性极化的LiNbO3晶体，并由主动调Q的Yb光纤激光器产生的2.1微秒长的脉冲泵浦。在光纤激光器平均功率为3.6 W时，SRO产生1.9微秒长的脉冲，重复频率为25 kHz，在3360 nm处的平均功率为560 mW。通过晶体温度和极化周期，SRO的调谐范围为1518至1634 nm（信号光）和3145至3689 nm（闲频光）。通过对光纤激光器波长进行全电子调谐，调谐范围超过19 nm，实现了中红外闲频光波长调谐范围超过195 nm。
