Power Characteristics of cw Second-harmonic Generation in Periodically Poled LiNbO3 |
Bong-Hoon Kang, Gi-Tae Joo1, Bum-Ku Rhee2 |
Department of Visual Optics, Far East University 1Department of Materials Science and Engineering, Seoul National University of Technology 2Department of Physics, Sogang University |
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ABSTRACT |
We verified through a noncritical phase-matched second-harmonic generation experiment that the periodically-poled $LiNbO_3$ (PPLN) had a large effective nonlinear optical coefficient, demonstrating that the QPM grating was uniform throughout the entire length of PPLN. The quasi-phase matching temperature was $193.4^{circ}C$. The maximum SHG output power at the fundamental power of 2.0 W was found to be 18.0 mW; generated second-harmonic beam was found to have no photorefractive effect. |
Key words:
Periodically poled $LiNbO_3$ (PPLN), Quasi-phase matching, Second-harmonic generation, Photorefractive effect |
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