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Optical Engineering

Motion compensated fiber-optic confocal microscope based on a common-path optical coherence tomography distance sensor
Author(s): Yong Huang; Kang Zhang; Ching Lin; Jin Ung Kang
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Paper Abstract

A motion compensated fiber-optic confocal microscope system is demonstrated by utilizing a Fourier domain common-path optical coherence tomography (FD-CP-OCT) distance sensor and a high-speed linear motor at the distal end of a fiber-optic confocal microscope imaging probe. The fiber-optic confocal microscope is based on a 460 μm diameter imaging bundle with 10 K cores. The fiber bundle was terminated with a gradient index lens system. Using one-dimensional A-scan data of CP-OCT, the distance deviation of the target from the focal plane of the probe was monitored and motion compensated at the rate of 840 Hz, for a confocal microscopic imaging frame rate of 1fps and was 200 × 200 pixels in size, with a distance error less than 5 μm.

Paper Details

Date Published: 1 August 2011
PDF: 8 pages
Opt. Eng. 50(8) 083201 doi: 10.1117/1.3610980
Published in: Optical Engineering Volume 50, Issue 8
Show Author Affiliations
Yong Huang, The Johns Hopkins Univ. (United States)
Kang Zhang, The Johns Hopkins Univ. (United States)
Ching Lin, The Johns Hopkins Univ. (United States)
Jin Ung Kang, The Johns Hopkins Univ. (United States)


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