| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Efficient Compound-Cavity Eye-Safe KTP OPO at 1.57 μupm Pumped by an Electro-Optic Q-Switched Nd:YAG Laser |
| ZHONG Kai1,2, WANG Yu-Ye1,2, XU De-Gang1,2, GENG You-Fu1,2, WANG Jing-Li1,2, WANG Peng1,2, YAO Jian-Quan1,2 |
| 1College of Precision Instrument and Opto-Electronic Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 3000722Key Laboratory of Opto-Electronics Information Science and Technology, Ministry of Education, Tianjin 300072 |
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| Cite this article: |
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ZHONG Kai, WANG Yu-Ye, XU De-Gang et al 2009 Chin. Phys. Lett. 26 064210 |
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Abstract An efficient high-energy eye-safe optical parametric oscillator (OPO) based on a type-II non-critically phase-matched KTP crystal is demonstrated. The KTP OPO is pumped by a quasi-cw diode side-pumped electro-optic Q-switched Nd:YAG laser in a compound-cavity configuration. The maximum output energy of the signal wavelength at 1.57 μm is 66.5mJ, corresponding to an electrical-to-optical conversion efficiency of 4.47% and an optical-to-optical conversion efficiency of 12.1%. The pulse width (FWHM) is about 3.6ns with a peak power of 18.5MW. The output energy is insensitive to repetition rate and demonstrates good stability.
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| Keywords:
42.65.Yj
42.65.Lm
42.60.Lh
42.55.Xi
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Received: 31 January 2009
Published: 01 June 2009
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| PACS: |
42.65.Yj
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(Optical parametric oscillators and amplifiers)
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42.65.Lm
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(Parametric down conversion and production of entangled photons)
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42.60.Lh
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(Efficiency, stability, gain, and other operational parameters)
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42.55.Xi
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(Diode-pumped lasers)
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