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Proceedings Paper

Feedback enhancement of the amplitude of dynamically excited coherent population trapping resonance in Rb vapour
Author(s): Daba Radnatarov; Sergey Khripunov; Sergey Kobtsev; Alexey Taichenachev; Valery Yudin; Maxim Basalaev; Ivan Popkov; Valeriy Andryushkov; Tatiana Steschenko
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Paper Abstract

This work reports on possibilities of contrast enhancement of dynamically excited coherent population trapping (CPT) resonance in 87Rb vapour arising from application of feedback methods. Controlling the bichromatic pump radiation power through a feedback loop that stabilises Rb atom luminescence when scanning the frequency difference of the bichromatic pump radiation resulted in a more than an order-or-magnitude improvement in the amplitude of the CPT resonance at scanning frequencies over 100 Hz. It is established that the excursion of the pump radiation power controlled by the feedback loop under dynamic excitation is by an order of magnitude smaller than that under quasistationary excitation at scan frequencies < 1 Hz.

Paper Details

Date Published: 3 November 2016
PDF: 6 pages
Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100291K (3 November 2016); doi: 10.1117/12.2247794
Show Author Affiliations
Daba Radnatarov, Novosibirsk State Univ. (Russian Federation)
Sergey Khripunov, Novosibirsk State Univ (Russian Federation)
Sergey Kobtsev, Novosibirsk State Univ. (Russian Federation)
Alexey Taichenachev, Novosibirsk State Univ. (Russian Federation)
Institute of Laser Physics (Russian Federation)
Valery Yudin, Novosibirsk State Univ. (Russian Federation)
Institute of Laser Physics (Russian Federation)
Maxim Basalaev, Novosibirsk State Univ. (Russian Federation)
Institute of Laser Physics (Russian Federation)
Ivan Popkov, Novosibirsk State Univ. (Russian Federation)
Valeriy Andryushkov, Novosibirsk State Univ. (Russian Federation)
Tatiana Steschenko, Novosibirsk State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10029:
Quantum and Nonlinear Optics IV
Qihuang Gong; Guang-Can Guo; Byoung Seung Ham, Editor(s)

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