Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 21: Poster I
Q 21.87: Poster
Dienstag, 9. März 2010, 16:00–19:00, Lichthof
Glass-fiber-based Fabry-Perot resonators — •Christian Wuttke1, Boris N. Chichkov3, Andreas Jöckel1, Michael Kappl2, Jürgen Koch3, Kotaro Obata3, and Arno Rauschenbeutel1 — 1QUANTUM, Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz — 2Max-Planck-Institut für Polymerforschung, 55128 Mainz — 3Laser Zentrum Hannover e.V., 30419 Hannover
We present experimental results on the fabrication and characterisation of glass-fiber-based Fabry-Perot resonators. In one approach Bragg-reflectors are created on optical nanofibers which can be used to build a fiber-coupled monolithic microresonator. Optical nanofibers are realised from standard optical fibers in a heat and pull process to produce a waist with a diameter of 500 nm. The structure is realised by coating the waist with periodically varying polymer films using two photon polymerization (2PP) or carving structures out of the nanofiber waist by focused ion beam milling (FIB) or laser ablation. The optical properties are spectrally characterised by transmission and reflection measurements and compared to theoretical predictions using a finite difference time domain model. Another approach uses dielectric mirrors that are applied to the endfacets of standard optical fibers with an integrated taper. These resonators can be used to precisely measure the loss of the taper. Long term measurements are made under different environmental conditions.
Financial support by the ESF (EURYI Award) and the Volkswagen Foundation (Lichtenberg Professorship) is gratefully acknowledged.