9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

Essence of re-calibrating optical instruments: Analysis of digital delay line

11 Jul 2012, 10:55
20m
Oral Presentation Track C - Photonics Photonics

Speaker

Dr Winston Tumps Ireeta (Department of Physics, Nelson Mandela Metropolitan University/ Makerere University)

Abstract content <br> &nbsp; (Max 300 words)

In this study a digital delay line (DDL) from Oz Optics was used. The DDL introduces a delay in optical paths between the fast and slow orthogonal polarizations by adjusting the relative travel distance of the two orthogonal modes. The insertion loss of the DDL is 1.5 dB. A Labview programme was used to write and read from the DDL. The DDL was adjusted from 0 to 60 ps and the observed first order polarization mode dispersion (FO-PMD) was measured. With 1018 random values between 0 and 60 ps, written to the DDL to adjust it, the resulting FO-PMD values give a histogram approaching the Maxwellian distibution, although not well populated on the tail. This therefore means the DDL alone can be controlled to generate a distribution approximating the Maxwellian distribution over a large sample size as would be expected theoretically.

Main supervisor (name and email)<br>and his / her institution

Prof. Andrew W. Leitch, Department of Physics, Nelson Mandela Metropolitan University.
andrew.leitch@nmmu.ac.za

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

NO

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

YES

Primary author

Dr Winston Tumps Ireeta (Department of Physics, Nelson Mandela Metropolitan University/ Makerere University)

Co-authors

Prof. Andrew Leitch (NMMU) Dr Vitalis Musara (NMMU)

Presentation Materials