@article{5aeef23eaef548f6bf573ae7eb5ef637,
title = "All-optical polarization switch in a quadratic nonlinear photonic quasicrystal",
abstract = "We present an all-optical intensity-dependent polarization switch based on cascaded three-wave-mixing interactions in a quasiperiodic quadratic nonlinear photonic crystal. The polarization switching is realized by simultaneous quasiphase matching of upconversion and downconversion processes in LiNbO 3 and achieves three orders of magnitude better efficiency than previous devices based on cascaded cubic nonlinearities. The switch allows extending mode-cleaning and mode-locking techniques to considerably lower input power. We demonstrate experimentally that a single linearly polarized 1550 nm fundamental wave generates a new fundamental wave of orthogonal polarization.",
author = "Ayelet Ganany-Padowicz and Irit Juwiler and Ofer Gayer and Alon Bahabad and Ady Arie",
note = "Funding Information: We thank Professor S. M. Saltiel of Sofia University for fruitful discussions. This work was supported by the Israel Science Foundation Grant No. 960/05 and by the Israeli Ministry of Science, Culture, and Sport. ",
year = "2009",
doi = "10.1063/1.3090488",
language = "אנגלית",
volume = "94",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "9",
}