6533b7d9fe1ef96bd126caea
RESEARCH PRODUCT
Low repetition rate gain-switched double-clad thulium-doped fiber laser operating in the 2 µm wavelength region
Manuel Durán-sánchezMiguel V. AndrésBaldemar Ibarra-escamillaMiguel Bello-jiménezRicardo I. ÁLvarez-tamayoJ. Alaniz-baylónI. Armas-riveraB. Posada-ramírezJose L. Cruzsubject
Active laser mediumMaterials sciencebusiness.industryPhysics::Opticschemistry.chemical_elementLaserAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionWavelengthThuliumchemistryControl and Systems EngineeringlawFiber laserOptical cavityOptoelectronicsFiberElectrical and Electronic EngineeringbusinessInstrumentationDiodedescription
Abstract The experimental demonstration of a gain-switched pulsed fiber laser with low repetition rate emission in the 2 µm wavelength region is presented. The laser cavity is based on the figure-9 shape, where the gain-switched operation of the laser is obtained by using a double-clad Tm-doped fiber (DCTDF) as gain medium and a commercial pulsed laser diode at 793-nm with configurable parameters as pump source. The pulse parameters of the pump source are optimized for efficient suppressing of unstable gain-switched laser oscillations. As a result, laser pulses with low repetition rate in a range from 10 to 20 kHz with laser emission at the wavelength of 1951 nm are obtained. The generated gain-switched pulses exhibit maximum duration and energy of 0.5 and 3.5 µJ, respectively. The delay time between the pump pulses and the gain-switched pulses is of ~ 0.5 µs.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-10-01 | Optical Fiber Technology |