title: Inscription of first-order sapphire Bragg gratings using 400 nm femtosecond laser radiation.
abstract: The paper describes the implementation of fiber Bragg gratings inscribed by femtosecond laser pulses with a wavelength of 400 nm. The use of a Talbot interferometer for the inscription process makes multiplexing practicable. We demonstrate the functionality of a three-grating multiplexing sensor and the temperature stability up to 1200 °C for a single first-order Bragg grating.
authors.affiliation: Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany. tino.elsmann@ipht-jena.de
authors.forename: Tino
authors.initials: T
authors.lastname: Elsmann
authors.forename: Tobias
authors.initials: T
authors.lastname: Habisreuther
authors.forename: Albrecht
authors.initials: A
authors.lastname: Graf
authors.forename: Manfred
authors.initials: M
authors.lastname: Rothhardt
authors.forename: Hartmut
authors.initials: H
authors.lastname: Bartelt
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008422:Materials Testing; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013499:Surface Properties / Q000528:radiation effects
chemical_list: D000537:Aluminum Oxide