title: Dual-state dissipative solitons from an all-normal-dispersion erbium-doped fiber laser: continuous wavelength tuning and multi-wavelength emission.
abstract: We propose and experimentally demonstrate switchable operation of dissipative solitons (DSs) in an erbium-doped fiber laser. By managing normal dispersion of laser cavity, the 3-dB spectral bandwidth up to 8.1 nm can be obtained with the help of a semiconductor saturable absorber mirror. Using an inline polarizer, the fiber laser can be separately operated at either wavelength-tunable or multi-wavelength emission. The central wavelength of DS can be continuously tuned from 1554 to 1561 nm with its spectra maintaining standard rectangular shape. Alternatively, triple-wavelength DSs at 1535, 1544, and 1553 nm can be simultaneously obtained.
authors.forename: Zhichao
authors.initials: Z
authors.lastname: Wu
authors.forename: Songnian
authors.initials: S
authors.lastname: Fu
authors.forename: Changxiu
authors.initials: C
authors.lastname: Chen
authors.forename: Ming
authors.initials: M
authors.lastname: Tang
authors.forename: Perry
authors.initials: P
authors.lastname: Shum
authors.forename: Deming
authors.initials: D
authors.lastname: Liu