| .A low-threshold efficient KTA OPO by a fiber-coupled diode-end-pumped Nd:YVO4 laser[J].Optoelectronics Letters,2010,6(6):412-416 |
| A low-threshold efficient KTA OPO by a fiber-coupled diode-end-pumped Nd:YVO4 laser |
| 钟凯 |
| Institute of Laser and Optoelectronics,and Key Laboratory of Optoelectronic Information Science and Technology,Ministry of Education,College of Precision Instrument and Optoelectronic Engineering,Tianjin University； |
| Abstract: |
| A low-threshold efficient high-repetition-rate eye-safe optical parametric oscillator (OPO) is presented. The OPO is based
on an x-cut non-critically phase-matched (NCPM) KTA intra-cavity pumped by an acousto-optically (A-O) Q-switched Nd:YVO4 laser. At 10 kHz, the lowest threshold of 0.75 W and the signal power of 0.6 W are got, corresponding to the single pulse
energy of 60 μJ and the peak power of 20 kW. Tuning the frequency, the maximum output power at 1536 nm is 1.03 W at 30 kHz
with an optical-to-optical conversion efficiency of 12.26%. The fluctuation of the output power is 2.1% during 2 h operation. |
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