Berlin 2014 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects
Q 30.28: Poster
Tuesday, March 18, 2014, 16:30–18:30, Spree-Palais
Ultimate limits of Fabry-Perot microcavities — •Benedikt Schlederer1,2, Mathias Mader1,2, Theodor Wolfgang Hänsch1,2, and David Hunger1,2 — 1Ludwig-Maximilians-Universität, München — 2Max-Planck Institut für Quantenoptik, München
Fiber-based Fabry-Perot optical microcavities can be made from concave mirrors imprinted into the end-facet of optical fibers. They are a promising tool for many experiments, as they are tunable and are automatically fiber-coupled with very good efficiency. [1]
To maximize light matter interaction, the smallest possible cavity mode volume is desired in many cases. We report on simulations and improved CO2 laser fabrication directed to approach the limits of open acces Fabry-Perot type microcavities.
The experimental implementation is based on a CO2 laser which we use for a thermal ablation process. We control the laser with an AOM for pulsehaping and use automatized micropositioning to achieve precise alignment.
[1] Hunger et. al., NJP 12, 065038 (2010)
[2] Hunger et al., AIP Advances 2, 012119 (2012)