title: Phase locking of 2.324 and 2.959 terahertz quantum cascade lasers using a Schottky diode harmonic mixer.
abstract: The 23rd and 31st harmonics of a microwave signal generated in a novel THz balanced Schottky diode mixer were used as a frequency stable reference source to phase lock solid-nitrogen-cooled 2.324 and 2.959 THz quantum cascade lasers. Hertz-level frequency stability was achieved, which was maintained for several hours.
authors.forename: Andriy
authors.initials: A
authors.lastname: Danylov
authors.forename: Neal
authors.initials: N
authors.lastname: Erickson
authors.forename: Alexander
authors.initials: A
authors.lastname: Light
authors.forename: Jerry
authors.initials: J
authors.lastname: Waldman