Title :
Fiber Fabry-Perot interferometer with mode-converting Bragg gratings
Author :
Johlen, Dietmar ; Klose, Peter ; Renner, Hagen ; Brinkmeyer, Ernst
Author_Institution :
Optik und Messtechnik, Tech. Univ. Hamburg-Harburg, Germany
Abstract :
Bragg gratings are genuine narrow band reflectors. However, for several applications narrow band transmission filters are of interest. It is demonstrated that a pair of mode-converting Bragg gratings in a Fabry-Perot interferometer configuration yields a nonreflecting, narrow-band transmission filter. A more detailed investigation shows further a different mode of operation where narrow band reflection occurs in resonance. It is shown experimentally how both modes of operation are attained by UV trimming of the Fabry-Perot interferometer. A mathematical model for the mode-converting Fabry-Perot interferometer is given.
Keywords :
Bragg gratings; Fabry-Perot interferometers; optical communication equipment; optical fibre filters; UV trimming; fiber Fabry-Perot interferometer; mathematical model; mode-converting Bragg gratings; mode-converting Fabry-Perot interferometer; narrow band reflection; narrow band reflectors; narrow band transmission filters; nonreflecting narrow-band transmission filter; Bragg gratings; Fabry-Perot interferometers; Fiber gratings; Filters; Narrowband; Optical fiber communication; Optical interferometry; Optical reflection; Optical waveguides; Resonance;
Journal_Title :
Lightwave Technology, Journal of
