7-11 July 2014
Africa/Johannesburg timezone
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Non-linear power amplifiers for atomic physics applications

Presented by Mr. Shaun BURD on 8 Jul 2014 from 17:10 to 19:00
Type: Poster Presentation
Session: Poster1
Track: Track C - Photonics
Board #: C.355

Abstract

RF amplifiers are essential components of atomic physics laboratories. They are used to drive electro- and acousto-optical modulators, to generate RF fields in Paul traps, and to manipulate the hyperfine states of trapped atoms. Typically, expensive commercial broad band linear amplifiers are used to amplify a signal from a signal generator. However, in most cases a high RF voltage is required only to drive a resonant load at a specific frequency. We show that high efficiency, narrow band, nonlinear RF amplifiers can easily be constructed to drive a resonant load. These amplifiers are low cost, and can be constructed by physics students from readily available parts. We present laser frequency stabilization systems, and an RF Paul trap driver based on our amplifiers, that demonstrate the applicability of nonlinear amplifiers in experimental atomic physics.

Award

Yes

Level

Msc

Supervisor

Hermann Uys (HUys@csir.co.za) Institution: CSIR

Paper

No

Place

Room: D Ring ground level


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