3-7 July 2017
Africa/Johannesburg timezone

Analysis and Performance of a closed loop external cavity diode laser control system

5 Jul 2017, 17:10
1h 50m
3rd and 4th floor passages (Engineering Building 51)

3rd and 4th floor passages

Engineering Building 51

Board: 65
Poster Presentation Track C - Photonics Poster Session 2

Speaker

Mr Victory Opeolu (Cape Peninsula University of Technology)

Description

External cavity diode lasers (ECDL) are commonly used these days in laser cooling experiments involving Rubidium atoms. By adjusting the cavity length as well as the diode current the laser frequency can be finely tuned. The ECDL is locked to the appropriate Rubidium transition using a saturation absorption set 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 numerically modelling, together with validation using experimental data.

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

MEng

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Primary author

Mr Victory Opeolu (Cape Peninsula University of Technology)

Co-authors

Mr Adrian Wyngaard (Cape Peninsula University of Technology) Prof. Gerhard De Jager (University of Cape Town) Mr Jordan Scarrot (Cape Peninsula University of Technology) Dr Kessie Govender (Cape Peninsula University of Technology) Prof. Ouassini nemraoui (Cape Peninsula university of Technology)

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