title: Continuous-wave tunnel ring fiber laser.
abstract: The continuous-wave oscillation of a tunnel ring fiber laser is demonstrated. The high losses encountered in tunneling systems are compensated for by a high-gain amplifying medium from barrier widths for 0 to lambda/2. The experimental observations are in good agreement with a simple theoretical model. This near-field probe system allows one to detect small displacements in the picometer range.
authors.affiliation: Laboratoire d'Electronique Quantique-Physique des Lasers, Unité Mixte de Recherche du Centre National de la Recherche Scientifique 6627, Université de Rennes I, Campus de Beaulieu, F-35042 Rennes Cedex, France. lpl@univ-rennes1.fr
authors.forename: Christophe
authors.initials: C
authors.lastname: Bonnet
authors.forename: Olivier
authors.initials: O
authors.lastname: Emile
authors.forename: Dominique
authors.initials: D
authors.lastname: Chauvat
authors.forename: Marc
authors.initials: M
authors.lastname: Vallet
authors.forename: Albert
authors.initials: A
authors.lastname: Le Floch