title: Laser diode feedback interferometer for stabilization and displacement measurements.
abstract: Active laser diode interferometers in which the interference signal is fed back to the diode current are investigated for Twyman-Green and self-coupling interferometers. The Twyman-Green interferometer is stabilized with a stabilization factor of more than 100. By using the feedback signal of either type of interferometer, displacement is measured in a linear scale over a dynamic range of 8-9,microm with a precision of 10-60 nm. The feedback signal vs displacement shows hysteresis and multistable behavior, in accordance with theoretical results.
authors.forename: T
authors.initials: T
authors.lastname: Yoshino
authors.forename: M
authors.initials: M
authors.lastname: Nara
authors.forename: S
authors.initials: S
authors.lastname: Mnatzakanian
authors.forename: B S
authors.initials: BS
authors.lastname: Lee
authors.forename: T C
authors.initials: TC
authors.lastname: Strand