@article{article2dc780ab, title = {Noise analysis of a quasi-phase-matched quantum frequency converter and higher-order counter-propagating SPDC}, author = {Mann, Felix and Chrzanowski, Helen M. and Gewers, Felipe and Placke, Marlon and Ramelow, Sven}, year = {2024}, doi = {10.1364/OE.534581}, publisher = {Optica}, journal = {Optics Express} }