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Optical second-harmonic generation by quasi-phase matching in channel waveguide structure using organic molecular crystal

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3 Author(s)
T. Suhara ; Dept. of Electron., Osaka Univ., Japan ; T. Morimoto ; H. Nishihara

Waveguide quasi-phase matching second-harmonic generation (QPM-SHG) using an organic molecular crystal as a nonlinear material was demonstrated for the first time. The device is constructed with an array of SiN channel guides with grooves of a fan-out grating pattern and mNA single crystal grown over the waveguides. A normalized efficiency of 0.04%/W was obtained in an experiment involving frequency doubling of CW Nd:YAG laser light.<>

Published in:

IEEE Photonics Technology Letters  (Volume:5 ,  Issue: 8 )