Widely tunable, high-repetition-rate, dual signal-wave optical parametric oscillator by using two periodically poled crystals |
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| Authors: | Tieli Zhang Jianquan Yao Xueyu Zhu Baigang Zhang Enbang Li Pu Zhao Haifeng Li Feng Ji Peng Wang |
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| Affiliation: | Institute of Laser and Opto-Eletronics, College of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China Key Laboratory of Opto-electric Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072, China |
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| Abstract: | This paper reports on a high-repetition-rate dual signal-wave (DSW) optical parametric oscillator (OPO) operating at the 1.5 μm band with tunable wavelength intervals from 2.5 nm to 69.1 nm. Two periodically poled crystals, a periodically poled lithium niobate (PPLN) with multiple gratings and a single grating MgO-doped PPLN (PPMgOLN), are cascaded in the same OPO cavity to generate dual signal-waves by using quasi-phase-matched (QPM) technique. The pump source was a Q-switched diode-pumped Nd:YVO4 laser operating at 50 kHz. At an incident pump power of 3 W, an average output power of 169.6 mW at 1489.2 nm and 1558.3 nm has been achieved. |
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| Keywords: | Dual signal-wave Quasi-phase-matched Optical parametric oscillator Periodically poled lithium niobate |
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