Multiple nonlinear processes in 1D and 2D periodic and quasiperiodic structures

Ady Arie; Keren Fradkin-Kashi; Alon Bahabad; Gil Rosenman; Pavel Urenski

doi:10.1117/12.478548

12 September 2003 Multiple nonlinear processes in 1D and 2D periodic and quasi-periodic structures

Ady Arie, Keren Fradkin-Kashi, Alon Bahabad, Gil Rosenman, Pavel Urenski

Proceedings Volume 4972, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II; (2003) https://doi.org/10.1117/12.478548
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

Quasi-phase matching in periodic nonlinear structures provides an efficient method to phase match a single nonlinear process. However, periodic modulation is not suitable for multiple-wavelength interactions, such as dual wavelength second harmonic generation, frequency tripling and frequency quadrupling. Multiple processes may be phase-matched by using aperiodic, rather than periodic, modulation of the nonlinear coefficient. We have developed a method to phase match any two arbitrary processes by quasi-periodic modulation of the nonlinear coefficient. This method was experimentally verified by performing dual wavelength second harmonic generation, as well as frequency tripling (based on simultaneous phase matching of frequency doubling, followed by sum frequency generation of the first and second harmonic waves) in a single quasi-periodically-poled KTP crystal. Additional degrees of freedom are obtained by using two dimensional periodic or quasi-periodic modulation of the nonlinear coefficient. We discuss frequency tripling by a 2D periodic structure, as well as the application of 2D quasi-periodic structures for nonlinear frequency conversion.

Citation Download Citation

Ady Arie, Keren Fradkin-Kashi, Alon Bahabad, Gil Rosenman, and Pavel Urenski "Multiple nonlinear processes in 1D and 2D periodic and quasi-periodic structures", Proc. SPIE 4972, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II, (12 September 2003); https://doi.org/10.1117/12.478548

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