title: 784-nm amplified spontaneous emission from Tm3+-doped fluoride glass fiber pumped by an 1120-nm fiber laser.
abstract: We report 784-nm (1G4 --> 3H5 transition) amplified spontaneous emission (ASE) from Tm3+-doped fluoride (ZrF4-BaF2-LaF3-AlF3-NaF) glass fiber pumped by an 1120-nm fiber laser. To our best knowledge, this is the first report of 784-nm (1G4 --> 3H5 transition) ASE in a Tm3+-doped fluoride fiber laser. Its effects on a 480-nm (1G4 --> 3H6 transition) blue laser were also discussed.
authors.affiliation: Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Tokyo 182-8585, Japan. gsqin@yahoo.com
authors.forename: Guanshi
authors.initials: G
authors.lastname: Qin
authors.forename: Shenghong
authors.initials: S
authors.lastname: Huang
authors.forename: Yan
authors.initials: Y
authors.lastname: Feng
authors.forename: A
authors.initials: A
authors.lastname: Shirakawa
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Ueda