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Proceedings Paper

Multiple-depth probing by wavelength-multiplexed low-coherence interferometry
Author(s): Daniel Oestling; Trude Storen; Arne Royset; Ole Johan Lokberg; Lars Othar Svaasand; Tore Lindmo
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Paper Abstract

We demonstrate a wavelength multiplexed low coherence interferometer that detects and demodulates four subbands of the source spectrum in parallel. By introducing dispersion into one of the interferometer arms we obtain a wavelength dependent measurement depth in the object. We analyze the influence of the dispersion on the signals and demonstrate simultaneous Doppler measurements of dynamic flow at three different positions within a tube. The method can be used to remove false Doppler signals caused by an unsteady object and therefore has potential in blood flow monitoring.

Paper Details

Date Published: 23 May 2001
PDF: 5 pages
Proc. SPIE 4251, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications V, (23 May 2001); doi: 10.1117/12.427873
Show Author Affiliations
Daniel Oestling, Norwegian Univ. of Science and Technology and SINTEF Materials Technology (Norway)
Trude Storen, Norwegian Univ. of Science and Technology (Norway)
Arne Royset, SINTEF Materials Technology (Norway)
Ole Johan Lokberg, Norwegian Univ. of Science and Technology (Norway)
Lars Othar Svaasand, Norwegian Univ. of Science and Technology (Norway)
Tore Lindmo, Norwegian Univ. of Science and Technology (Norway)


Published in SPIE Proceedings Vol. 4251:
Coherence Domain Optical Methods in Biomedical Science and Clinical Applications V
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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