title: Single-longitudinal mode laser structure based on a very narrow filtering technique.
abstract: A narrow filtering technique based on the spectral overlapping of two uniform FBGs and applied to obtain a Single Longitudinal Mode (SLM) laser is proposed and demonstrated in this work. The two FBGs are spectrally detuned to reduce their coincident reflection response narrowing the equivalent filter bandwidth. A proof-of-concept linear laser has been built and tested exhibiting SLM operation even with temperature and strain variations.
authors.affiliation: Photonics Engineering Group, Universidad de Cantabria, Av. Los Castros s/n, 39005, Santander, Spain. luis.rodriguez@unican.es
authors.forename: L
authors.initials: L
authors.lastname: Rodríguez-Cobo
authors.forename: M A
authors.initials: MA
authors.lastname: Quintela
authors.forename: S
authors.initials: S
authors.lastname: Rota-Rodrigo
authors.forename: M
authors.initials: M
authors.lastname: López-Amo
authors.forename: J M
authors.initials: JM
authors.lastname: López-Higuera
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration / Q000295:instrumentation*; D007834:Lasers; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*