AI Article Synopsis
- This study presents a new method for assessing and calibrating photon detection in higher-order spatial modes, which traditionally relies on complex holographic techniques.
- By using only Gaussian beams for calibration, the proposed approach simplifies the process and addresses issues of inaccuracy found in existing methods.
- The research also offers a statistical reconstruction of the positive operator valued measure (POVM) elements, enhancing the understanding of holographic spatial mode detectors' performance.
Article Abstract
Transformation and detection of photons in higher-order spatial modes usually requires complicated holographic techniques. Detectors based on spatial holograms suffer from non-idealities and should be carefully calibrated. We report a novel method for analyzing the quality of projective measurements in spatial mode basis inspired by quantum detector tomography. It allows us to calibrate the detector response using only gaussian beams. We experimentally investigate the inherent inaccuracy of the existing methods of mode transformation and provide a full statistical reconstruction of the POVM (positive operator valued measure) elements for holographic spatial mode detectors.
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| http://dx.doi.org/10.1364/OE.23.000649 | DOI Listing |
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