The Mathematical Institute, University of Oxford, Eprints Archive

Improving the efficiency of optical coherence tomography by using the non-ideal behaviour of a polarising beam splitter

Lippok, N. and Nielsen, P. and Vanholsbeeck, F. (2011) Improving the efficiency of optical coherence tomography by using the non-ideal behaviour of a polarising beam splitter. Optics Express .

[img]
Preview
PDF
774Kb

Abstract

We present a new way of improving the efficiency of optical coherence tomography by using the polarisation crosstalk of a polarising beam splitter to direct most of the available source optical power to the sample. The use of a quarter wave plate in both the reference and the sample arms allows most of the sample power to be directed to the detector while adjusting the reference arm to ensure noise optimised operation. As a result, the sensitivity of such a system can be improved by 6 dB, or alternatively the acquisition time can be improved by a factor of 4 for shot noise limited performance.

Item Type:Article
Subjects:D - G > General
Research Groups:Oxford Centre for Collaborative Applied Mathematics
ID Code:1161
Deposited By:Peter Hudston
Deposited On:14 May 2011 08:45
Last Modified:09 Feb 2012 14:05

Repository Staff Only: item control page