title: Guided quasicontinuous atom laser.
abstract: We report the first realization of a guided quasicontinuous atom laser by rf outcoupling a Bose-Einstein condensate from a hybrid optomagnetic trap into a horizontal atomic waveguide. This configuration allows us to cancel the acceleration due to gravity and keep the de Broglie wavelength constant at 0.5 microm during 0.1 s of propagation. We also show that our configuration, equivalent to pigtailing an optical fiber to a (photon) semiconductor laser, ensures an intrinsically good transverse mode matching.
authors.affiliation: Laboratoire Charles Fabry de l'Institut d'Optique, CNRS et Université Paris Sud 11, Campus Polytechnique, RD 128, 91127 Palaiseau, France. William.Guerin@institutoptique.fr
authors.forename: W
authors.initials: W
authors.lastname: Guerin
authors.forename: J-F
authors.initials: JF
authors.lastname: Riou
authors.forename: J P
authors.initials: JP
authors.lastname: Gaebler
authors.forename: V
authors.initials: V
authors.lastname: Josse
authors.forename: P
authors.initials: P
authors.lastname: Bouyer
authors.forename: A
authors.initials: A
authors.lastname: Aspect