We investigate the influence of the pump and collection mode parameters on the collection efficiency of Type I down converted photons into single mode fibers. For best single and coincidence counting rates, we find that the mode sizes should be close to the same size and that the mode waists should be located near the down-conversion crystal. Larger collection waists give higher collection efficiencies, but lower singles counts.
College and Department
Physical and Mathematical Sciences; Physics and Astronomy
BYU ScholarsArchive Citation
Niemi, David A., "Coupling Down Converted Light Into Single Mode Fibers" (2007). Theses and Dissertations. 893.
quantum optics, parametric down conversion, single mode fibers, physics