LiNbO3 waveguides for integrated SPDC spectroscopy

Spontaneous parametric down-conversion (SPDC) spectroscopy using photon pairs is a promising avenue towards affordable mid-infrared (MIR) spectroscopy. Here, we experimentally investigate the feasibility of using periodically poled waveguides in lithium niobate for SPDC spectroscopy applications. We...

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Bibliographic Details
Main Authors: Alexander S. Solntsev, Pawan Kumar, Thomas Pertsch, Andrey A. Sukhorukov, Frank Setzpfandt
Format: Article
Language:English
Published: AIP Publishing LLC 2018-02-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/1.5009766
Description
Summary:Spontaneous parametric down-conversion (SPDC) spectroscopy using photon pairs is a promising avenue towards affordable mid-infrared (MIR) spectroscopy. Here, we experimentally investigate the feasibility of using periodically poled waveguides in lithium niobate for SPDC spectroscopy applications. We find the waveguides suitable to generate wavelength non-degenerate photon pairs with one photon in the MIR spectral range with high fluence. We use this to determine the cutoff wavelengths of the waveguide mode in the MIR by performing only measurements in the near-infrared spectral range.
ISSN:2378-0967