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Ultrathin fiber probes with extended depth of focus for optical coherence tomography

Lorenser, D., Yang, X. and Sampson, D.D. (2012) Ultrathin fiber probes with extended depth of focus for optical coherence tomography Optics Letters, 37 (10). pp. 1616-1618.

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Abstract

We report on a novel scheme for extending the depth of focus (DOF) of ultrathin (125 μm diameter) fiber probes for optical coherence tomography (OCT) using a simple phase mask consisting of graded-index (GRIN) fiber. The technique is compatible with existing all-in-fiber probe fabrication techniques, and our simulations show that it can provide a DOF gain of ~2 at a modest ~5 dB reduction of peak sensitivity. In a prototype device using commercially available GRIN fiber, a DOF gain of 1.55 is obtained, validated by beam profiling and OCT imaging.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences
Faculty of Health and Medical Sciences
Authors :
NameEmailORCID
Lorenser, D.
Yang, X.
Sampson, D.D.d.sampson@surrey.ac.uk
Date : 2012
DOI : 10.1364/OL.37.001616
Uncontrolled Keywords : Beam profiling, Depth of focus, DOF gain, Extended depth of focus, Fabrication technique, Fiber probe, Graded index, OCT imaging, Phase masks, Prototype devices, Ultra-thin, Optical tomography, Probes, Fibers, glass fiber, article, Citrus, cytology, instrumentation, optical coherence tomography, Citrus, Optical Fibers, Tomography, Optical Coherence
Depositing User : Maria Rodriguez-Marquez
Date Deposited : 05 Jun 2018 15:04
Last Modified : 19 Sep 2018 11:32
URI: http://epubs.surrey.ac.uk/id/eprint/846840

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