Simultaneous low coherence interferometry imaging at two depths using an integrated optic modulator

Podoleanu, Adrian G.H. and Rogers, John A. and Cucu, Radu G. and Jackson, David A. and Wacogne, Bruno and Porte, Henri and Gharbi, Tijani (2001) Simultaneous low coherence interferometry imaging at two depths using an integrated optic modulator. Optics Communications, 191 (1-2). pp. 21-30. ISSN 0030-4018. (doi:https://doi.org/10.1016/S0030-4018(01)01109-9) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://www.dx.doi.org/10.1016/S0030-4018(01)01109-...

Abstract

A Mach-Zehnder unbalanced LiNbO3 integrated modulator with independent control of the phase of each arm is incorporated into the reference arm of a low coherence interferometer set-up. Using different RF modulation frequency and processing electronics tuned to these frequencies, the system can be used for simultaneous interrogation of the signal reflected from two different depths in tissue or from two different axial positions in profilometry. When a pair of XY scanning mirrors are incorporated into the sensing arm, then two en-face images from different axial positions can be simultaneously produced. The depth separation between the axial positions of the points or layers interrogated is equal to half of the modulator path difference. The operation of the system is illustrated by displaying simultaneously two images from a coin. © 2001 Elsevier Science B.V.

Item Type: Article
Uncontrolled keywords: Low coherence interferometry; Optical coherence tomography; 3D real time imaging; Optical modulation
Subjects: Q Science > QC Physics > QC355 Optics
Q Science > QC Physics > QC411 Interference
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 27 Jul 2015 09:34 UTC
Last Modified: 28 Jul 2015 10:25 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49806 (The current URI for this page, for reference purposes)
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