Energy exchange between orthogonally polarized waves by cascaded quasi-phase-matched processes

B. F. Johnston; P. Dekker; S. M. Saltiel; M. J. Withford; Y. S. Kivshar

doi:10.1117/12.759753

8 January 2008 Energy exchange between orthogonally polarized waves by cascaded quasi-phase-matched processes

B. F. Johnston, P. Dekker, S. M. Saltiel, M. J. Withford, Y. S. Kivshar

Proceedings Volume 6801, Photonics: Design, Technology, and Packaging III; 680116 (2008) https://doi.org/10.1117/12.759753
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia

Abstract

By identifying appropriate quasi-phase-matching (QPM) conditions in z-cut congruent lithium niobate, we demonstrate simultaneous QPM of type-I (ooe) and higher order type-0 (eee) second-harmonic-generation, which share a common second harmonic wave. We demonstrate this experimentally at 1064nm, and show that cascading between these processes occurs. The cascading can result in energy exchange between the cross-polarized fundamentals, indicative of an equivalent 3rd order process. The nonlinear phase shifts and transfer functions resulting from this cascading are explored numerically.

Citation Download Citation

B. F. Johnston, P. Dekker, S. M. Saltiel, M. J. Withford, and Y. S. Kivshar "Energy exchange between orthogonally polarized waves by cascaded quasi-phase-matched processes", Proc. SPIE 6801, Photonics: Design, Technology, and Packaging III, 680116 (8 January 2008); https://doi.org/10.1117/12.759753

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