𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Gouy phase anomaly in optical coherence tomography

✍ Scribed by Guy Lamouche; Marc L. Dufour; Bruno Gauthier; Jean-Pierre Monchalin

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
359 KB
Volume
239
Category
Article
ISSN
0030-4018

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✦ Synopsis

We analyze the influence of the frequency dependent accumulated Gouy phase anomaly on the axial precision of optical coherence tomography (OCT) measurements. Relying on a fiber-based OCT configuration, we develop a model and demonstrate experimentally that the Gouy phase shift can lead to significant errors in presence of chromatic aberrations. An additional contribution related to the phase distribution over the aperture of the collecting fiber is also considered.

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