title: Simple two-laser optical heterodyne system with large transmitter-local oscillator isolation.
abstract: A method for frequency locking the transmitter and the local oscillator lasers with large optical isolation in a field environment is reported.
authors.forename: D
authors.initials: D
authors.lastname: Draper
authors.forename: J F
authors.initials: JF
authors.lastname: Holmes
authors.forename: J
authors.initials: J
authors.lastname: Hunt
authors.forename: J
authors.initials: J
authors.lastname: Peacock