title: Multiple-depth en face optical coherence tomography using active recirculation loops.
abstract: We present a novel low-coherence interferometer configuration, equipped in each arm with an adjustable optical path length ring. By compensating for the losses in the rings using semiconductor optical amplifiers, interference of low-coherence light after traversing the two rings 18 times is obtained. This configuration is employed to demonstrate simultaneous en face optical coherence tomography imaging at five different depths in a Drosophila melanogaster fly.
authors.affiliation: Applied Optics Group, School of Physical Sciences, University of Kent, CT2 7NH Canterbury, UK.
authors.forename: Liviu
authors.initials: L
authors.lastname: Neagu
authors.forename: Adrian
authors.initials: A
authors.lastname: Bradu
authors.forename: Lisha
authors.initials: L
authors.lastname: Ma
authors.forename: James W
authors.initials: JW
authors.lastname: Bloor
authors.forename: Adrian Gh
authors.initials: AG
authors.lastname: Podoleanu
mesh_terms: D000818:Animals; D004331:Drosophila melanogaster; D007814:Larva; D008027:Light; D016014:Linear Models; D012815:Signal Processing, Computer-Assisted; D013057:Spectrum Analysis; D041623:Tomography, Optical Coherence / Q000379:methods*