A continuous broad-spectrum correlated photon source based on angle tuning of a BBO crystal

Huili Wang; Xiaobing Zheng; Jin Hong; Maopeng Xia

doi:10.1117/12.3030721

3 June 2024 A continuous broad-spectrum correlated photon source based on angle tuning of a BBO crystal

Huili Wang, Xiaobing Zheng, Jin Hong, Maopeng Xia

Proceedings Volume 13182, 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024); 131822E (2024) https://doi.org/10.1117/12.3030721
Event: 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024), 2024, Kunming, China

Abstract

The calibration method based on correlated photons can realize absolute calibration without standard transfer. The solar spectral irradiance meter using this calibration method needs a correlated photon source with a broad spectrum to achieve absolute calibration in the solar reflection band. In the early stage, non-collinear phase matching combined with multiple crystals was generally adopted to achieve wide spectral coverage. In this paper, a continuous wide spectral correlated photon source is obtained using pumping a BBO crystal by a 532nm laser and continuous angle tuning collinear phase matching. The collinear phase matching positions at different wavelengths are determined by the rotation crystal which shrinks the relevant photon rings into circular spots. The spectral range and correlation of the broad spectral correlated photon source are verified by the correlated photon ring image and the coincidence counting of four pairs of correlated photons of 800nm/1580nm, 840nm/1450nm, 900 nm/ 1300nm, and 950nm/1200nm.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Huili Wang, Xiaobing Zheng, Jin Hong, and Maopeng Xia "A continuous broad-spectrum correlated photon source based on angle tuning of a BBO crystal", Proc. SPIE 13182, 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024), 131822E (3 June 2024); https://doi.org/10.1117/12.3030721

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