Chinese Optics Letters, 2006, 4 (4): 04234, Published Online: Jun. 6, 2006
A tunable optical parametric generator by using a quasi-phase-matched crystal with different wedge angles 
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190.2620 Frequency conversion 190.4410 Nonlinear optics, parametric processes 190.4970 Parametric oscillators and amplifiers
Abstract
We report a tunable quasi-phase-matched optical parametric generator (OPG) with different wedge angles, pumped by a commercially available Q-switched diode-pumped Nd:YVO4 laser with a repetition of 50 kHz. The nonlinear crystal is a periodically poled MgO-doped LiNbO3 (PPMgOLN) with a period of 30 um. A congruent bulk LiNbO3 (LN) with three different wedge angles of 0, 4, and 9 deg. is placed in front of PPMgOLN. Rapid tuning has been achieved by simply moving the LN crystal along its lateral direction and over 60-mW average signal output power was obtained in the whole wavelength tuning range of 1539-1570 nm.
Tieli Zhang, Baigang Zhang, Haifeng Li, Feng Ji, Yang Lu, Xin Zhao, Peng Wang, Jianquan Yao. A tunable optical parametric generator by using a quasi-phase-matched crystal with different wedge angles[J]. Chinese Optics Letters, 2006, 4(4): 04234.
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