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Opt Lett. 1997 Jun 1;22(11):757-9.

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.

PMID:
18185652
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