Two-dimensional domain structures in Lithium Niobate via domain inversion with ultrafast light
نویسندگان
چکیده
منابع مشابه
Quasi-phase matching via femtosecond laser-induced domain inversion in lithium niobate waveguides.
We demonstrate an all-optical fabrication method of quasi-phase matching structures in lithium niobate (LiNbO3) waveguides using a tightly focused femtosecond near-infrared laser beam (wavelength of 800 nm). In contrast to other all-optical schemes that utilize a periodic lowering of the nonlinear coefficient χ(2) by material modification, here the illumination of femtosec...
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UV radiation in the spectral region beyond ~320 nm is strongly absorbed by lithium niobate single crystals. The strong absorption and the consequent localized heating of the crystal triggers physical processes which can affect the state of the material not only by changing the refractive index, as shown in the past, but also by changing its ferroelectric disposition. UV laser irradiation of the...
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We propose to integrate the electro-optic (EO) tuning function into on-chip domain engineered lithium niobate (LN) waveguide. Due to the versatility of LN, both the spontaneously parametric down conversion (SPDC) and EO interaction could be realized simultaneously. Photon pairs are generated through SPDC, and the formation of entangled state is modulated by EO processes. An EO tunable polarizat...
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ژورنال
عنوان ژورنال: Photonics Letters of Poland
سال: 2016
ISSN: 2080-2242
DOI: 10.4302/plp.2016.2.02