title: Super-flat supercontinuum generation from a Tm-doped fiber amplifier.
abstract: Super-flat supercontinua are generated from a double clad Tm-doped fiber amplifier. Two different laser configurations are investigated and compared. In the direct-output configuration, the long-wavelength edge of the supercontinuum spectra is extended to beyond 2.65 μm with a 10 dB bandwidth of 740 nm. In the passive pigtail configuration, the generated supercontinuum features excellent flatness with an intensity difference smaller than 1 dB in the wide central spectral range from 1.98 μm to 2.41 μm.
authors.affiliation: State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, P. R. China.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Tao
authors.affiliation: Research Center of Space Laser Information Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, P. R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, P. R. China.
authors.forename: Zhenbao
authors.initials: Z
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, P. R. China.
authors.forename: Hongwei
authors.initials: H
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, P. R. China.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Shen
authors.affiliation: State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, P. R. China.
authors.forename: Guobin
authors.initials: G
authors.lastname: Feng
authors.affiliation: Research Center of Space Laser Information Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, P. R. China.
authors.forename: Xisheng
authors.initials: X
authors.lastname: Ye