Related papers: Photorefractive effect in LiNbO$_3$-based integrated-optical circuits for continuous variable experiments

Photorefractive effect in LiNbO$_3$-based integrated-optical circuits for continuous variable experiments

URL: http://arxiv.org/abs/2007.11375v1
Date: Wed, 22 Jul 2020 12:37:45 GMT
Title: Photorefractive effect in LiNbO$_3$-based integrated-optical circuits for continuous variable experiments
Authors: Fran\c{c}ois Mondain, Floriane Brunel, Xin Hua, Elie Gouzien, Alessandro Zavatta, Tommaso Lunghi, Florent Doutre, Marc P. De Micheli, S\'ebastien Tanzilli, and Virginia D'Auria
Abstract summary: Photorefractive effect might compromise success of on-chip quantum photonics experiments. We focus on photorefractive effect induced by light at 775 nm, in the context of the generation of non-classical light at 1550 nm telecom wavelength.
Score: 45.82374977939355
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We investigate the impact of photorefractive effect on lithium niobate integrated quantum photonic circuits dedicated to continuous variable on-chip experiments. The circuit main building blocks, i.e. cavities, directional couplers, and periodically poled nonlinear waveguides are studied. This work demonstrates that, even when the effect of photorefractivity is weaker than spatial mode hopping, they might compromise the success of on-chip quantum photonics experiments. We describe in detail the characterization methods leading to the identification of this possible issue. We also study to which extent device heating represents a viable solution to counter this effect. We focus on photorefractive effect induced by light at 775 nm, in the context of the generation of non-classical light at 1550 nm telecom wavelength.

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