title: Random fiber laser.
abstract: We investigate the effects of two-dimensional confinement on the lasing properties of a classical random laser system operating in the incoherent feedback (diffusive) regime. A suspension of 250 nm rutile (TiO2) particles in a rhodamine 6G solution was inserted into the hollow core of a photonic crystal fiber generating the first random fiber laser and a novel quasi-one-dimensional random laser geometry. A comparison with similar systems in bulk format shows that the random fiber laser presents an efficiency that is at least 2 orders of magnitude higher.
authors.affiliation: Programa de Pós-Graduação em Engenharia Elétrica and Faculdade de Computação e Informática, Universidade Presbiteriana Mackenzie, São Paulo-SP 01302-907, Brazil. cjsdematos@mackenzie.br
authors.forename: Christiano J S
authors.initials: CJ
authors.lastname: de Matos
authors.forename: Leonardo
authors.initials: L
authors.lastname: de S Menezes
authors.forename: Antônio M
authors.initials: AM
authors.lastname: Brito-Silva
authors.forename: M A
authors.initials: MA
authors.lastname: Martinez Gámez
authors.forename: Anderson S L
authors.initials: AS
authors.lastname: Gomes
authors.forename: Cid B
authors.initials: CB
authors.lastname: de Araújo