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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Lissajous fiber scanning for forward viewing optical endomicroscopy using asymmetric stiffness modulation

Hyeon-Cheol Park, Yeong-Hyeon Seo, and Ki-Hun Jeong  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5818-5825 (2014)

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We report a fully packaged and compact forward viewing endomicroscope by using a resonant fiber scanner with two dimensional Lissajous trajectories. The fiber scanner comprises a single mode fiber with additional microstructures mounted inside a piezoelectric tube with quartered electrodes. The mechanical cross-coupling between the transverse axes of a resonant fiber with a circular cross-section was completely eliminated by asymmetrically modulating the stiffness of the fiber cantilever with silicon microstructures and an off-set fiber fragment. The Lissajous fiber scanner was fully packaged as endomicroscopic catheter passing through the accessory channel of a clinical endoscope and combined with spectral domain optical coherence tomography (SD-OCT). Ex-vivo 3D OCT images were successfully reconstructed along Lissajous trajectory. The preview imaging capability of the Lissajous scanning enables rapid 3D imaging with high temporal resolution. This endoscopic catheter provides many opportunities for on-demand and non-invasive optical biopsy inside a gastrointestinal endoscope.

© 2014 Optical Society of America

OCIS Codes
(120.5800) Instrumentation, measurement, and metrology : Scanners
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:

Original Manuscript: January 15, 2014
Revised Manuscript: February 24, 2014
Manuscript Accepted: February 24, 2014
Published: March 5, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Hyeon-Cheol Park, Yeong-Hyeon Seo, and Ki-Hun Jeong, "Lissajous fiber scanning for forward viewing optical endomicroscopy using asymmetric stiffness modulation," Opt. Express 22, 5818-5825 (2014)

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