title: Active stabilization of a rapidly chirped laser by an optoelectronic digital servo-loop control.
abstract: We propose and demonstrate a novel active stabilization scheme for wide and fast frequency chirps. The system measures the laser instantaneous frequency deviation from a perfectly linear chirp, thanks to a digital phase detection process, and provides an error signal that is used to servo-loop control the chirped laser. This way, the frequency errors affecting a laser scan over 10 GHz on the millisecond timescale are drastically reduced below 100 kHz. This active optoelectronic digital servo-loop control opens new and interesting perspectives in fields where rapidly chirped lasers are crucial.
authors: Laboratoire Aimé Cotton, CNRS, Université Paris Sud, Bâtiment 505, 91405 Orsay Cedex, France. guillame.gorju@lac.u-psud.fr
authors: G
authors: G
authors: Gorju
authors: A
authors: A
authors: Jucha
authors: A
authors: A
authors: Jain
authors: V
authors: V
authors: Crozatier
authors: I
authors: I
authors: Lorgeré
authors: J-L
authors: JL
authors: Le Gouët
authors: F
authors: F
authors: Bretenaker
authors: M
authors: M
authors: Colice