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8/5/138/5/13 Control of Intensity drive of a Cavity QED System J. O. Gómez 1,2, B. D. Patterson 1, A. D. Cimmarusti 1, W. M. Pimenta 1,3, and L. A. Orozco.

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Presentation on theme: "8/5/138/5/13 Control of Intensity drive of a Cavity QED System J. O. Gómez 1,2, B. D. Patterson 1, A. D. Cimmarusti 1, W. M. Pimenta 1,3, and L. A. Orozco."— Presentation transcript:

1 8/5/138/5/13 Control of Intensity drive of a Cavity QED System J. O. Gómez 1,2, B. D. Patterson 1, A. D. Cimmarusti 1, W. M. Pimenta 1,3, and L. A. Orozco 1 1 JQI, Dept. Physics and NIST, University of Maryland, College Park, MD 20742, USA. 2 Facultad de Ciencias e Instituto de Ciencias Nucleares, Universidad Autonoma de Mexico, Mexico DF, Mexico. 3 Universidad Federal de Minas Gerais, Bello Horizonte, MG, Brazil. Work supported in part by the JQI and by the NSF through grant

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3 We use Arduino to collect and process the information

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7 We were able to reduce the fluctuations of the light using the feedback loop by a factor of 3.7 as measured by the coefficient of variation defined as the ratio of the standard deviation divided by the mean.

8 A D Cimmarusti, C A Schroeder, B D Patterson, L A Orozco, P Barberis-Blostein and H J Carmichael. “Control of conditional quantum beats in cavity QED: amplitude decoherence and phase shifts”. New J. Phys. 15, (2013). Mikhailov, Eugeny E. College of William & Mary. “Chapter 11 Feedback and PID Controll Theory”. As dowloaded on August 4, Analog_Electronics/#toc25 Analog_Electronics/#toc25 Thorlabs. “PRM1Z8 Motorized Rotation Stage Manual”. As downloaded on August 4,


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