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Fiber-coupled, high-Q AlGaAs microdisk cavities for chip-based cavity QED

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5 Author(s)
Painter, O. ; Thomas J. Watson, Sr. Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA. phone: ; Srinivasan, K. ; Borselli, M. ; Stintz, A.
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Fiber-coupled, high-quality-factor (Q > 105) AlGaAs microdisks with embedded InAs quan tum dots are demonstrated. Microdisk lasers employing evanescent fiber coupling for optical pump ing and collection of emission exhibit up to two orders of magnitude improvement in differential effi-ciency compared to devices probed through normal-incidence, free-space photoluminescence. The fiber taper coupling is also shown to provide an efficient optical channel for studying and manipulating the microcavity-quantum dot system, with in-fiber cavity mode collection efficiences greater than 20% and cavity loading approaching critical coupling. Progress and current challenges in incorporating such fiber coupled devices into low temperature experiments for studying coherent interaction between single quan tum dot and single cavity mode excitations will be discussed.

Published in:

Lasers and Electro-Optics, 2005. CLEO/Pacific Rim 2005. Pacific Rim Conference on

Date of Conference:

30-02 Aug. 2005

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