title: Tapered fluorotellurite microstructured fibers for broadband supercontinuum generation.
abstract: Fluorotellurite microstructured fibers (MFs) based on TeO2-BaF2-Y2O3 glasses are fabricated by using a rod-in-tube method. Tapered fluorotellurite MFs with varied transition region lengths are prepared by employing an elongation machine. By using a tapered fluorotellurite MF with a transition region length of ∼3.3  cm as the nonlinear medium and a 1560 nm femtosecond fiber laser as the pump source, broadband supercontinuum generation covering from 470 to 2770 nm is obtained. The effects of the transition region length of the tapered fluorotellurite MF on supercontinuum generation are also investigated. Our results show that tapered fluorotellurite MFs are promising nonlinear media for generating broadband supercontinuum light expanding from visible to mid-infrared spectral region.
authors.forename: Fang
authors.initials: F
authors.lastname: Wang
authors.forename: Kangkang
authors.initials: K
authors.lastname: Wang
authors.forename: Chuanfei
authors.initials: C
authors.lastname: Yao
authors.forename: Zhixu
authors.initials: Z
authors.lastname: Jia
authors.forename: Shunbin
authors.initials: S
authors.lastname: Wang
authors.forename: Changfeng
authors.initials: C
authors.lastname: Wu
authors.forename: Guanshi
authors.initials: G
authors.lastname: Qin
authors.forename: Yasutake
authors.initials: Y
authors.lastname: Ohishi
authors.forename: Weiping
authors.initials: W
authors.lastname: Qin