title: Rapid and scalable scans at 21 m/s in optical low-coherence reflectometry.
abstract: An optical low-coherence reflectometer is presented that uses a fiber Michelson interferometer with a rotating cube to generate rapid depth scans at a high repetition rate. A folded optical path geometry allows the reference arm to scale up the scan range, scan speed, and scan repetitiveness. Thickness measurements with a repetitiveness of 384 Hz and a longitudinal scanning speed of 21 m/s in air over a range of ~3 mm are demonstrated.
authors.forename: J
authors.initials: J
authors.lastname: Ballif
authors.forename: R
authors.initials: R
authors.lastname: Gianotti
authors.forename: P
authors.initials: P
authors.lastname: Chavanne
authors.forename: R
authors.initials: R
authors.lastname: Wälti
authors.forename: R P
authors.initials: RP
authors.lastname: Salathé