Acta Optica Sinica, Volume. 25, Issue 1, 63(2005)
The Research of Quasi-Continuous-Wave Output Quasi-Phase-Matching Second Harmonic Generation at 532 nm in Periodically Poled Heavily-Doped MgO∶LiNbO3
The double-frequency process based on periodically poled heavily doped MgO∶LiNbO3 is theoretically researched. A first order quasi-phase-matching periodically poled optical micro-structure doped MgO∶LiNbO3 for second harmonic generation with 5.8~7.3 μm period(interval of 0.3 μm), 10 mm length, 10 mm width and 1 mm thickness has been successfully fabricated by applying an external field at room temperature and under ~5.5 kV/mm of the lower switching field. Controlling temperature at about 70 ℃,the experiment on the manufactured optical micro-structure using Nd∶YAG laser with wavelength of 1.064 μm as fundamental frequency is carried to validate the double frequency. About 15 mW 532 nm of quasi-continuous-wave double-frequency blue light output is obtained which is pumped by 920 mW of the fundamental power, corresponding to 1.77 %/W normalized conversion efficiency.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. The Research of Quasi-Continuous-Wave Output Quasi-Phase-Matching Second Harmonic Generation at 532 nm in Periodically Poled Heavily-Doped MgO∶LiNbO3[J]. Acta Optica Sinica, 2005, 25(1): 63