Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 48: Poster – Quantum Optics, Technologies, and Optomechanics

Q 48.56: Poster

Wednesday, March 12, 2025, 17:00–19:00, Tent

Investigating Autofluorescence in Optical Fibers — •Alexander Bukschat, Stefan Johansson, Dennis Lönard, Isabel Cardoso Barbosa, Jonas Gutsche, and Artur Widera — Physics Department and State Research Center OPTI- MAS, RPTU Kaiserslautern-Landau, 67663 Kaiserslautern, Germany

Autofluorescence describes the glow of photoactive substances when exposed to light. The autofluorescence that occurs in glass fibres often has a disruptive effect in experiments with miniaturized fluorescence-based sensors whose spectral ranges overlap. As the factors influencing the autofluorescence of glass fibers tend to receive little attention, we will now investigate and discuss in more detail. Not only the type of glass fiber plays a major role, but also the materials used, radii of curvature, contamination or errors during coupling. Our results thus resemble a guideline for the design and handling of glass fibers for miniaturized sensors.

Keywords: Autofluorescence; Optical Fiber; Fluorescence Spectroscopy