title: Radially polarized conical beam from an embedded etched fiber.
abstract: We propose a method for producing a conical beam based on the lateral refraction of the TM(01) mode from a two-mode fiber after chemical etching of the cladding, and for controlling its radial polarization. The whole power of the guided mode is transferred to the refracted beam with low diffraction. Polarization control by a series of azimuthal detectors and a stress controller affords the transmission of a stabilized radial polarization through an optical fiber. A solid component usable for many applications has been obtained.
authors.affiliation: Département d'Optique, Institut FEMTO-ST, Université de Franche-Comté, CNRS UMR 6174, 16 Route de Gray, 25030 Besançon Cedex, France.
authors.forename: Djamel
authors.initials: D
authors.lastname: Kalaidji
authors.forename: Michel
authors.initials: M
authors.lastname: Spajer
authors.forename: Nadège
authors.initials: N
authors.lastname: Marthouret
authors.forename: Thierry
authors.initials: T
authors.lastname: Grosjean