Construction of a fiber-coupled DFB-laser-based frequency modulated laser radar
Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
In this thesis we construct a fiber-coupled DFB-laser-based frequency modulated coherent laser radar for assessment of distance and velocity of a target. The system is based on an in-fiber Mach-Zehnder heterodyne interferometer. We measure the position of the target in a 60-cm span, with 1.4 mm error and velocity of the target in 2 to 35 mm/s range, with 0.2 mm/s error. The acquisition time for each measurement is around 60 ms for the position measurement and 120 ms for the velocity measurement. Using Allan variance we measure the minimum detection limit of our system for position measurement which is 30 m after 120 s of averaging.
Place, publisher, year, edition, pages
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:umu:diva-122052OAI: oai:DiVA.org:umu-122052DiVA: diva2:936843
Subject / course
Fysik C - Examensarbete