Using a piezoelectric fiber stretcher to remove the depth ambiguity in optical Fourier domain imaging

Sébastien Vergnole; Guy Lamouche; Marc Dufour; Bruno Gauthier

doi:10.1117/12.728489

11 July 2007 Using a piezoelectric fiber stretcher to remove the depth ambiguity in optical Fourier domain imaging

Sébastien Vergnole, Guy Lamouche, Marc Dufour, Bruno Gauthier

Proceedings Volume 6627, Optical Coherence Tomography and Coherence Techniques III; 66271J (2007) https://doi.org/10.1117/12.728489
Event: European Conferences on Biomedical Optics, 2007, Munich, Germany

Abstract

This paper reports the study of an Optical Fourier Domain Imaging (OFDI) setup for optical coherence tomography. One of the main drawbacks of OFDI is its inability to differentiate positive and negative depths. Some setups have already been proposed to remove this depth ambiguity by introducing a modulation by means of electro-optic or acousto-optic modulators. In our setup, we implement a piezoelectric fiber stretcher to generate a periodic phase shift between successive A-scans, thus introducing a transverse modulation. The depth ambiguity is then resolved by performing a Fourier treatment in the transverse direction before processing the data in the axial direction. It is similar to the B-M mode scanning already proposed for Spectral-Domain OCT¹ but with a more efficient experimental setup. We discuss the advantages and the drawbacks of our technique compared to the technique based on acousto-optics modulators by comparing images of an onion obtained with both techniques.

Citation Download Citation

Sébastien Vergnole, Guy Lamouche, Marc Dufour, and Bruno Gauthier "Using a piezoelectric fiber stretcher to remove the depth ambiguity in optical Fourier domain imaging", Proc. SPIE 6627, Optical Coherence Tomography and Coherence Techniques III, 66271J (11 July 2007); https://doi.org/10.1117/12.728489

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available