Controlling the disorder properties of quadratic nonlinear photonic crystals | Zendy

Idith Varon | Zendy; Gil Porat | Zendy; Ady Arie | Zendy

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Controlling the disorder properties of quadratic nonlinear photonic crystals

Author(s) -

Idith Varon,

Gil Porat,

Ady Arie

Publication year - 2011

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.36.003978

Subject(s) - optics , broadband , bandwidth (computing) , materials science , nonlinear system , nonlinear optics , modulation (music) , photonic crystal , wavelength , nonlinear photonic crystal , second harmonic generation , energy conversion efficiency , optoelectronics , photonic crystal fiber , physics , telecommunications , computer science , laser , quantum mechanics , acoustics

We experimentally demonstrate a modulation scheme for disordered nonlinear crystals that combines periodic modulation and disordered sections. The crystal is divided into a set of identical periodically poled building blocks, whereby each block is followed by a short section of random length. We use this scheme to achieve broadband second harmonic generation in KTiOPO4 nonlinear crystals while independently controlling the bandwidth and the center of the converted wavelengths as well as the efficiency of conversion. The trade-off between bandwidth and efficiency is improved in comparison with periodically poled crystals.

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