title: Realization of fiber-based laser Doppler vibrometer with serrodyne frequency shifting.
abstract: We demonstrate a laser Doppler vibrometer (LDV) based on the serrodyne frequency shifting technique. A proof-of-principle system is implemented on the basis of fiber-optic components but opens the way toward an ultracompact integrated LDV system on a silicon chip. With a low laser power of 50  μW, the serrodyne LDV was able to measure submicrometer vibrations with frequencies in the audio range.
authors.affiliation: Photonics Research Group (Department of Information Technology), Ghent University-Interuniversitair Micro-Elektronica Centrum, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium. Yanlu.Li@intec.ugent.be
authors.forename: Yanlu
authors.initials: Y
authors.lastname: Li
authors.forename: Stijn
authors.initials: S
authors.lastname: Meersman
authors.forename: Roel
authors.initials: R
authors.lastname: Baets
mesh_terms: D000388:Air; D000465:Algorithms; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation*; D034381:Hearing Loss; D017078:Laser-Doppler Flowmetry / Q000295:instrumentation* / Q000379:methods; D007834:Lasers; D011312:Pressure; D014159:Transducers; D014732:Vibration