Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.86: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Femtosecond laser written waveguides for integrated quantum optics modules — •Gwenaelle Vest1,2, Andrea Crespi3, Giacomo Corrielli3, Stefan Frick1, Markus Rau1, Henning Weier2, Harald Weinfurter1,4, and Roberto Osellame3 — 1Fakultät für Physik, Ludwig-Maximilians-Universität, 80799 München, Germany — 2qutools GmbH, 80539 München, Germany — 3Dipartimento di Fisica, Politecnico di Milano, 20133 Milano, Italy — 4Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Integrated optics has enabled small, fast and low power consuming communication devices. Further developments could lead to compact and stable platforms for manipulating quantum states, thereby boosting daily life implementation of quantum information processing. In this context femtosecond laser writing has emerged as a powerful fabrication tool, allowing cost-effective, single-step, rapid prototyping of two- and three-dimensional photonic microstructures [1].
Here we consider single-mode waveguide arrays and directional couplers written in borosilicate glass. We study the evolution of polarization encoded qubits in such structures, through birefringence and splitting ratio measurements at 850 nm. We characterize the mode size and investigate packaging solutions to ensure optimal in- coupling and light collection. The total system has a footprint of only a few cubic centimeters.
[1] Della Valle, G. et al. , J. Opt. A, Pure Appl. Opt. 11(1), 013001 (2009)