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Journal of Undergraduate Research

Keywords

ultra-stable laser current controller, atom interferometry, digital to analog converter, DAC

College

Physical and Mathematical Sciences

Department

Physics and Astronomy

Abstract

Our research group has spent lots of effort and time building an ultra-stable laser current controller. This stability is essential for our application of atom interferometry so that our measurements could be very precise. The overall development of our controller has taken almost a year longer than expected, but regarding the results we have obtained it was time well spent. The specific part of the controller I focused on was the microprocessor and it’s relation to the DAC (digital to analog converter), so I will explain the processes I went through.

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