title: 1.5-14  μm midinfrared supercontinuum generation in a low-loss Te-based chalcogenide step-index fiber.
abstract: We have experimentally demonstrated midinfrared (MIR) supercontinuum (SC) generation in a low-loss Te-based chalcogenide (ChG) step-index fiber. The fiber, fabricated by an isolated extrusion method, has an optical loss of 2-3 dB/m at 6.2-10.3 μm and 3.2 dB/m at 10.6 μm, the lowest value reported for any Te-based ChG step-index fiber. A MIR SC spectrum (∼1.5 to 14 μm) is generated from the 23-cm fiber pumped by a 4.5 μm laser (∼150  fs, 1 kHz). To the best of our knowledge, this is the first SC experimental demonstration in Te-based ChG fiber and the broadest MIR SC generation pumped in the normal dispersion regime in the optical fibers.
authors.forename: Zheming
authors.initials: Z
authors.lastname: Zhao
authors.forename: Xunsi
authors.initials: X
authors.lastname: Wang
authors.forename: Shixun
authors.initials: S
authors.lastname: Dai
authors.forename: Zhanghao
authors.initials: Z
authors.lastname: Pan
authors.forename: Shuo
authors.initials: S
authors.lastname: Liu
authors.forename: Lihong
authors.initials: L
authors.lastname: Sun
authors.forename: Peiqing
authors.initials: P
authors.lastname: Zhang
authors.forename: Zijun
authors.initials: Z
authors.lastname: Liu
authors.forename: Qiuhua
authors.initials: Q
authors.lastname: Nie
authors.forename: Xiang
authors.initials: X
authors.lastname: Shen
authors.forename: Rongping
authors.initials: R
authors.lastname: Wang