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Active feedback of a Fabry-Perot cavity to the emission of a singleInAs/GaAs quantum dot

Published

Author(s)

Michael Metcalfe, Andreas Muller, Glenn S. Solomon, John R. Lawall

Abstract

We present a detailed study of the use of Fabry-Perot (FP) cavities for the spectroscopy of single InAs quantum dots (QDs). We derive optimal cavity characteristics and resolution limits, and measure photoluminescence linewidths as low as 0.9 GHz. By embedding the QDs in a planar cavity, we obtain a sufficiently large signal to lock a FP cavity to the emission of a single QD with a stability below 2% of the QD linewidth. An integration time of approximately two seconds is found to yield an optimum compromise between shot noise and cavity length fluctuations.
Citation
Journal of the Optical Society of America B-Optical Physics

Keywords

Quantum dot, Fabry-Perot, spectroscopy, feedback, PID

Citation

Metcalfe, M. , Muller, A. , Solomon, G. and Lawall, J. (2009), Active feedback of a Fabry-Perot cavity to the emission of a singleInAs/GaAs quantum dot, Journal of the Optical Society of America B-Optical Physics, [online], https://doi.org/10.1364/JOSAB.26.002308, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903373 (Accessed June 14, 2024)

Issues

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Created December 31, 2009, Updated November 29, 2022