Nonlinear Cerenkov radiation in a LiTaO3 waveguide with annular poling domain

C. D. Chen; X. P. Hu

doi:10.1117/12.2197243

22 August 2015 Nonlinear Cerenkov radiation in a LiTaO₃ waveguide with annular poling domain

C. D. Chen, X. P. Hu

Proceedings Volume 9656, International Symposium on Photonics and Optoelectronics 2015; 965607 (2015) https://doi.org/10.1117/12.2197243
Event: International Symposium on Photonics and Optics, 2015, Shanghai, China

Abstract

We report the modulated Cerenkov radiations in a LiTaO₃ waveguide with an annular domain structure. As a result of the continuous rotation symmetry of such a structure, the phase velocity of nonlinear polarization has a wide modulation tolerance. The reciprocal vectors which could be involved in the interaction had a threshold range associated with waveguide parameters. Our experimental results and simulations demonstrated that the radiation intensity had a close relationship with the overlapping between the pump and the radiated wave, which could be decreased by non-collinear reciprocal vectors.

Citation Download Citation

C. D. Chen and X. P. Hu "Nonlinear Cerenkov radiation in a LiTaO₃ waveguide with annular poling domain", Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 965607 (22 August 2015); https://doi.org/10.1117/12.2197243

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