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Q: Fachverband Quantenoptik und Photonik
Q 41: Poster – Quantum Technologies II & Laser Technology
Q 41.7: Poster
Wednesday, March 4, 2026, 17:00–19:00, Philo 2. OG
Comparison of High-Precision PM-Fiber Alignment Methods for Integrated Photonic Devices — •Philipp Will1, Lucas Kirchbach1,2, Alexander Bachmann3, Rainer Engelbrecht1,3, and Andreas Stute1,2 — 1Technische Hochschule Nürnberg, faculty efi, Nuremberg, Germany — 2Technische Hochschule Nürnberg, faculty amp, Nuremberg, Germany — 3Technische Hochschule Nürnberg, Polymere Optical Fiber Application Center (POF-AC), Nuremberg, Germany
This work compares three experimental methods for determining the rotation angle and position of polarization-maintaining fibers for use in integrated fiber arrays: detection of the front-face panda structure, polarization measurements of the light guided by the fiber, and imaging the panda structures via the lateral view of the fiber. Position and rotational angle of the PM fiber are detected via image recognition algorithms. Achieved positional accuracies lie in the sub-micrometer range, rotational accuracies in the range of 0.01 rad corresponding to a polarization extinction ratio of > 40 dB.
Keywords: Neutral-Atom-Quantum Computer; Fiber-Array; Polarization Maintaining Fiber; Image Recognition; Integration