Speaker
Mr
Victory Opeolu
(Cape Peninsula University of Technology)
Description
Laser cooling of neutral atoms is currently receiving a lot of attention worldwide due to the fact that cold atoms are promising candidates for implementation of quantum information processing elements. To cool neutral atoms, such as Rubidium and Caesium, external cavity diode lasers (ECDL) are commonly used. The laser frequency is finely tuned by adjusting the cavity length as well as the diode current. The ECDL is locked to the appropriate transition, of Rubidium in our case, using a saturated absorption setup in the feedback path together with a proportional-integral-derivative (PID) controller, to control the cavity length and diode current. In this presentation we report on the analysis and performance of the closed loop control system using theoretical and numerical analysis, together with validation using experimental data. We present numerical and experimental results of the system’s response to various input stimuli and provide regions of safe operation.
Supervisor details<br><b>If not a student, type N/A.</b><br>Student abstract submision<br>requires supervisor permission:<br>please give their name,<br> institution and email address.
Dr Kessie Govender; Cape Peninsula University of Technology; govenderk@cput.ac.za
| Consideration for<br>student awards<br><b>Choose one option<br>from those below.</b><br>N/A<br>Hons<br>MSc<br>PhD | MEng |
|---|---|
| Please confirm that you<br>have carefully read the<br>abstract submission instructions<br>under the menu item<br>"Call for Abstracts"<br><b>(Yes / No)</b> | Yes |
Primary author
Mr
Victory Opeolu
(Cape Peninsula University of Technology)
Co-authors
Mr
Adrian Wyngaard
(Cape Peninsula University of Technology)
Dr
Kessie Govender
(Cape Peninsula University of Technology)
