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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 15 — Aug. 1, 2004
  • pp: 1754–1756

Micromachined array tip for multifocus fiber-based optical coherence tomography

Victor X. D. Yang, Nigel Munce, Julius Pekar, Maggie L. Gordon, Stewart Lo, Norman E. Marcon, Brian C. Wilson, and I. Alex Vitkin  »View Author Affiliations


Optics Letters, Vol. 29, Issue 15, pp. 1754-1756 (2004)
http://dx.doi.org/10.1364/OL.29.001754


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Abstract

High-resolution optical coherence tomography demands a large detector bandwidth and a high numerical aperture for real-time imaging, which is difficult to achieve over a large imaging depth. To resolve these conflicting requirements we propose a novel multifocus fiber-based optical coherence tomography system with a micromachined array tip. We demonstrate the fabrication of a prototype four-channel tip that maintains a 914μm spot diameter with more than 500μm of imaging depth. Images of a resolution target and a human tooth were obtained with this tip by use of a four-channel cascaded Michelson fiber-optic interferometer, scanned simultaneously at 8 kHz with geometric power distribution across the four channels.

© 2004 Optical Society of America

OCIS Codes
(060.2350) Fiber optics and optical communications : Fiber optics imaging
(170.1650) Medical optics and biotechnology : Coherence imaging
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(220.4000) Optical design and fabrication : Microstructure fabrication

Citation
Victor X. D. Yang, Nigel Munce, Julius Pekar, Maggie L. Gordon, Stewart Lo, Norman E. Marcon, Brian C. Wilson, and I. Alex Vitkin, "Micromachined array tip for multifocus fiber-based optical coherence tomography," Opt. Lett. 29, 1754-1756 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-15-1754

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