title: Broadband infrared generation in liquid-bromine-core optical fibers.
abstract: A new Raman-gain medium suitable for use throughout the infrared spectral region is described. Hollow silica fibers with liquid-bromine cores are shown to have very large Raman-gain coefficients (gamma=1.7x10(-8)cm/W at 1.1 microm with a Raman shift of 312 cm(-1)). The liquid-bromine core, being a homonuclear diatomic material, has no first-order infrared absorption, and transparency between 1 and 16 microm has been verified. Broadband infrared radiationbetween 1.1 and 4 microm was generated by stimulated Raman scattering in bromine-core fibers pumped with 1.06- and 2.11-microm radiation.
authors.forename: T J
authors.initials: TJ
authors.lastname: Bridges
authors.forename: A R
authors.initials: AR
authors.lastname: Chraplyvy
authors.forename: J G
authors.initials: JG
authors.lastname: Bergman
authors.forename: R M
authors.initials: RM
authors.lastname: Hart