title: Widely tunable electro-optic distributed Bragg reflector in liquid crystal waveguide.
abstract: We propose and numerically investigate a versatile and easy-to-realize configuration for a guided-wave voltage-tunable distributed feedback grating based on reorientation in nematic liquid crystal and coplanar comb electrodes. The device has a wide tuning range exceeding 100 nm and covers C and L bands for wavelength division multiplexing.
authors.affiliation: Dipartimento di Ingegneria Elettronica, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Gilardi
authors.forename: Rita
authors.initials: R
authors.lastname: Asquini
authors.forename: Antonio
authors.initials: A
authors.lastname: d'Alessandro
authors.forename: Gaetano
authors.initials: G
authors.lastname: Assanto
mesh_terms: D017076:Computer-Aided Design; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D050866:Liquid Crystals / Q000737:chemistry* / Q000528:radiation effects; D010783:Photometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*