Evaluation of a multimode fiber optic low coherence interferometer for path length resolved Doppler measurments of diffuse light

Babu Varghese, Vinayakrishnan Rajan, Ton van Leeuwen, Wiendelt Steenbergen

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
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Abstract

The performance of a graded index multimode fiber optic low coherence Mach-Zehnder interferometer with phase modulation is analyzed. Investigated aspects were its ability to measure path length distributions and to perform path length resolved Doppler measurements of multiple scattered photons in a turbid suspension of particles undergoing Brownian and translational motion. The path length resolution of this instrument is compared with a system using single mode fibers for illumination and detection. The optical path lengths are determined from the zero order moment of the phase modulation peak in the power spectrum. The weighted first moment, which is equal to the average Doppler shift, shows a linear response for different mean flow velocities within the physiological range
Original languageUndefined
Pages (from-to)126103-1-126103-3
Number of pages3
JournalReview of scientific instruments
Volume78
Issue number12
DOIs
Publication statusPublished - 2007

Keywords

  • IR-76433
  • METIS-243926

Cite this

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title = "Evaluation of a multimode fiber optic low coherence interferometer for path length resolved Doppler measurments of diffuse light",
abstract = "The performance of a graded index multimode fiber optic low coherence Mach-Zehnder interferometer with phase modulation is analyzed. Investigated aspects were its ability to measure path length distributions and to perform path length resolved Doppler measurements of multiple scattered photons in a turbid suspension of particles undergoing Brownian and translational motion. The path length resolution of this instrument is compared with a system using single mode fibers for illumination and detection. The optical path lengths are determined from the zero order moment of the phase modulation peak in the power spectrum. The weighted first moment, which is equal to the average Doppler shift, shows a linear response for different mean flow velocities within the physiological range",
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author = "Babu Varghese and Vinayakrishnan Rajan and {van Leeuwen}, Ton and Wiendelt Steenbergen",
year = "2007",
doi = "10.1063/1.2823558",
language = "Undefined",
volume = "78",
pages = "126103--1--126103--3",
journal = "Review of scientific instruments",
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publisher = "American Institute of Physics",
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Evaluation of a multimode fiber optic low coherence interferometer for path length resolved Doppler measurments of diffuse light. / Varghese, Babu; Rajan, Vinayakrishnan; van Leeuwen, Ton; Steenbergen, Wiendelt.

In: Review of scientific instruments, Vol. 78, No. 12, 2007, p. 126103-1-126103-3.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Evaluation of a multimode fiber optic low coherence interferometer for path length resolved Doppler measurments of diffuse light

AU - Varghese, Babu

AU - Rajan, Vinayakrishnan

AU - van Leeuwen, Ton

AU - Steenbergen, Wiendelt

PY - 2007

Y1 - 2007

N2 - The performance of a graded index multimode fiber optic low coherence Mach-Zehnder interferometer with phase modulation is analyzed. Investigated aspects were its ability to measure path length distributions and to perform path length resolved Doppler measurements of multiple scattered photons in a turbid suspension of particles undergoing Brownian and translational motion. The path length resolution of this instrument is compared with a system using single mode fibers for illumination and detection. The optical path lengths are determined from the zero order moment of the phase modulation peak in the power spectrum. The weighted first moment, which is equal to the average Doppler shift, shows a linear response for different mean flow velocities within the physiological range

AB - The performance of a graded index multimode fiber optic low coherence Mach-Zehnder interferometer with phase modulation is analyzed. Investigated aspects were its ability to measure path length distributions and to perform path length resolved Doppler measurements of multiple scattered photons in a turbid suspension of particles undergoing Brownian and translational motion. The path length resolution of this instrument is compared with a system using single mode fibers for illumination and detection. The optical path lengths are determined from the zero order moment of the phase modulation peak in the power spectrum. The weighted first moment, which is equal to the average Doppler shift, shows a linear response for different mean flow velocities within the physiological range

KW - IR-76433

KW - METIS-243926

U2 - 10.1063/1.2823558

DO - 10.1063/1.2823558

M3 - Article

VL - 78

SP - 126103-1-126103-3

JO - Review of scientific instruments

JF - Review of scientific instruments

SN - 0034-6748

IS - 12

ER -