EPJ Web of Conferences
Volume 103, 2015XII International Workshop on Quantum Optics (IWQO-2015)
|Number of page(s)||2|
|Section||Experimental Quantum Optics: Methods and Devices|
|Published online||25 September 2015|
Simulating Single-Photon Sources Based on Backward-Wave Spontaneous Parametric Down-Conversion in a Periodically Poled KTP Waveguide
Zavoisky Physical-Technical Institute, 10/7, Sibirsky tract str., 420029, Kazan Russia
a Corresponding author: firstname.lastname@example.org
Published online: 25 September 2015
The properties of the backward-wave spontaneous parametric down-conversion (SPDC) in a periodically poled potassium titanyl phosphate (KTP) waveguide are studied in the context of creating narrowband heralded sources of single-photon states. The effective index of refraction and spatial profile of different waveguide modes, efficiency of different SPDC processes and purity of heralded photons are calculated numerically for a given waveguide. Compared to the usual co-propagating SPDC, spectral narrowing of the backward-wave SPDC was observed as should be expected. Generation biphoton states in backward-wave regime is experimentally observed in two-photon detection scheme.
Key words: single-photon source / SPDC / PPKTP
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Initial download of the metrics may take a while.