title: Real-time digital heterodyne interferometry: a system.
abstract: A system for obtaining real-time optical path difference maps is described. Results of applications to characterize thermally driven optical phenomena and active optical components are presented. Demonstrated performance parameters include a serial data acquisition rate of 50-microsec/point, spatial resolution to 500 points/line, and phase accuracy of lambda/70.
authors.forename: N A
authors.initials: NA
authors.lastname: Massie