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Realization of a fiber-based frequency modulated DFB-laser-based laser radar for measurement of distances and velocities
Umeå University, Faculty of Science and Technology, Department of Physics.
2015 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This paper presents the construction and a performance study of a fiber-based frequency modulated continuous wave (FMCW) laser radar for measurement of distance and velocity. The current to a distributed feedback laser (DFB) was modulated to get the frequency modulated light used to construct the fiber based laser radar system. The Allan variance was used for evaluating the stability of the laser radar system. To optimize the system, the performance with different modulation frequencies was compared. The minimum measurable distances for 10 Hz, 50 Hz and 100 Hz modulation frequency system are 0.1, 0.1 and 0.8 cm respectively.

Place, publisher, year, edition, pages
2015.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-117072OAI: oai:DiVA.org:umu-117072DiVA: diva2:904746
Subject / course
Fysik C - Examensarbete
Available from: 2016-02-19 Created: 2016-02-19 Last updated: 2016-02-19Bibliographically approved

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ReferencesLink to record
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