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Applied Optics

Applied Optics


  • Vol. 44, Iss. 22 — Aug. 1, 2005
  • pp: 4722–4732

Micro-optical fiber probe for use in an intravascular Raman endoscope

Yuichi Komachi, Hidetoshi Sato, Katsuo Aizawa, and Hideo Tashiro  »View Author Affiliations

Applied Optics, Vol. 44, Issue 22, pp. 4722-4732 (2005)

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We believe that we have developed the narrowest optical-fiber Raman probe ever reported, 600 μm in total diameter, that can be inserted into coronary arteries. The selection of suitable optical fibers, filters, and a processing method is discussed. Custom-made filters attached to the front end of a probe eliminate the background Raman signals of the optical fiber itself. The experimental evaluation of various optical fibers is carried out for the selection of suitable fibers. Measurement of the Raman spectra of an atherosclerotic lesion of a rabbit artery in vitro demonstrates the excellent performance of the micro-Raman probe.

© 2005 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.5660) Medical optics and biotechnology : Raman spectroscopy

Original Manuscript: June 3, 2004
Revised Manuscript: November 15, 2004
Manuscript Accepted: February 24, 2005
Published: August 1, 2005

Yuichi Komachi, Hidetoshi Sato, Katsuo Aizawa, and Hideo Tashiro, "Micro-optical fiber probe for use in an intravascular Raman endoscope," Appl. Opt. 44, 4722-4732 (2005)

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