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arXiv · 0910.4658

Coupling an epitaxial quantum dot to a fiber-based external-mirror microcavity

Andreas Muller·Edward B. Flagg·Michael Metcalfe·John Lawall·Glenn S. Solomon
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Abstract

We report the coupling of individual InAs quantum dots (QDs) to an external-mirror microcavity. The external mirror is bonded to a fiber and positioned above a semiconductor sample consisting of a QD-containing GaAs layer on top of a distributed Bragg reflector (DBR). This open cavity can be rapidly tuned with a piezoelectric actuator without negatively affecting the QD linewidth. A mirror radius of curvature of 42 microns and a cavity length of 10 microns enable good mode-matching and thus high collection efficiency directly into the fiber. With an improved finesse this system may enter the strong coupling regime.

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Andreas Muller, Edward B. Flagg, Michael Metcalfe, John Lawall, Glenn S. Solomon. 2009-10-24. Coupling an epitaxial quantum dot to a fiber-based external-mirror microcavity. https://doi.org/10.1063/1.3245311

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