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Proceedings Paper

The effect of collimator lenses on the performance of an optical coherence tomography system
Author(s): Pauli Fält; Robert J. Zawadzki; Barry Cense
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Paper Abstract

The effect of using collimator lenses with different focal lengths on the performance of a spectral-domain adaptive optics optical coherence tomography (AO-OCT) system has been studied. In vivo OCT scans of a healthy human retina were taken separately with different collimator lenses. Although shorter focal length lenses provide a smaller beam diameter at the pupil of the eye, and therefore a larger diffraction-limited spot size, on the return path the shorter focal length collimators demonstrate a better performance focusing the sinc-function-like intensity distribution returning from the eye on the fiber tip. The results might have applications in the OCT imaging of challenging cases.

Paper Details

Date Published: 9 March 2011
PDF: 6 pages
Proc. SPIE 7885, Ophthalmic Technologies XXI, 78850X (9 March 2011); doi: 10.1117/12.877225
Show Author Affiliations
Pauli Fält, Univ. of Eastern Finland (Finland)
Utsunomiya Univ. (Japan)
Robert J. Zawadzki, Univ. of California, Davis (United States)
Barry Cense, Utsunomiya Univ. (Japan)

Published in SPIE Proceedings Vol. 7885:
Ophthalmic Technologies XXI
Fabrice Manns; Per G. Söderberg; Arthur Ho, Editor(s)

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