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Proceedings Paper

The influence of multimode fiber in the detection arm on a low-coherence interferometric signal
Author(s): Roman V. Kuranov; Gregory Gelikonov; Dmitry V. Shabanov
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Paper Abstract

We investigated the influence of fiber that can support more than one propagation mode in the detection arm on the dynamic range of optical low-coherence reflectometry setup (OLCR). We theoretically and experimentally showed that the dynamic range in this case can be limited up to 20dB by parasitic spikes in the OLCR signal due to coupling of modes with different group delays. In our experiments we used MM fiber 160 cm section (core/cladding diameter 50/125 μm) and PM fiber HB980 (Δn=2*10-4, Fibercore Ltd., UK). We also experimentally showed that the single-mode fiber in the detection arm is not altered autocorrelation field function of the source.

Paper Details

Date Published: 13 April 2005
PDF: 8 pages
Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, (13 April 2005); doi: 10.1117/12.592006
Show Author Affiliations
Roman V. Kuranov, Institute of Applied Physics (Russia)
The Univ. of Texas Medical Branch at Galveston (United States)
Gregory Gelikonov, Institute of Applied Physics (Russia)
Dmitry V. Shabanov, Institute of Applied Physics (Russia)

Published in SPIE Proceedings Vol. 5690:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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