title: Switchable and spacing-tunable dual-wavelength thulium-doped silica fiber laser based on a nonlinear amplifier loop mirror.
abstract: A kind of switchable and spacing-tunable dual-wavelength thulium-doped silica fiber laser based on a nonlinear amplifier loop mirror is presented and experimentally demonstrated. By adjusting the polarization controllers (PCs), stable dual-wavelength operation is obtained at the 2 μm band. The optical signal-to-noise ratio (OSNR) is better than 56 dB. The wavelength tuning is performed by applying static strain into the fiber Bragg grating. A tuning range from 0 to 5.14 nm is achieved for the dual-wavelength spacing. By adjusting the PCs properly, the fiber laser can also operate in single-wavelength state with the OSNR for each wavelength more than 50 dB.
authors.forename: Shuo
authors.initials: S
authors.lastname: Liu
authors.forename: Fengping
authors.initials: F
authors.lastname: Yan
authors.forename: Ting
authors.initials: T
authors.lastname: Feng
authors.forename: Beilei
authors.initials: B
authors.lastname: Wu
authors.forename: Ze
authors.initials: Z
authors.lastname: Dong
authors.forename: Gee-Kung
authors.initials: GK
authors.lastname: Chang
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D017711:Nonlinear Dynamics; D012031:Refractometry / Q000295:instrumentation*; D012822:Silicon Dioxide / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013932:Thulium / Q000737:chemistry*
chemical_list: D012822:Silicon Dioxide; D013932:Thulium