Search results for "Thulium-Doped Fiber"

showing 2 items of 2 documents

Tunable dual-wavelength operation of an all- fiber thulium-doped fiber laser based on tunable fiber Bragg gratings

2018

Tunable dual-wavelength emission of a Tm-doped fiber laser based on two fiber Bragg gratings (FBGs) is experimentally demonstrated. By using two FBGs with central wavelengths at 2069.30 and 2069.44 nm, stable dual-wavelength laser generation in the 2 ?m wavelength region is achieved by adjusting the differential loss of the two wavelengths in the laser cavity. Strain applied on the FBG allows independent tuning of the simultaneously generated wavelengths with separation between the laser lines in a range from 0.54 to 9 nm. The laser has output power fluctuations less than 0.093% for an output power of 77.3 mW.

Materials scienceDual-wavelength fiber laserschemistry.chemical_elementPhysics::Optics02 engineering and technology01 natural scienceslaw.invention010309 optics020210 optoelectronics & photonicsOpticsFiber Bragg gratinglawFiber laser0103 physical sciences0202 electrical engineering electronic engineering information engineeringRange (particle radiation)business.industryDopingLaserAtomic and Molecular Physics and OpticsUNESCO::FÍSICA::Óptica ::Fibras ópticasElectronic Optical and Magnetic MaterialsWavelengthThuliumchemistry:FÍSICA::Óptica ::Fibras ópticas [UNESCO]Optical cavitybusinessThulium-Doped FiberTunable fiber lasersFiber bragg gratings
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Q-switched mode locking noise-like pulse generation from a thulium-doped all-fiber laser based on nonlinear polarization rotation

2021

Abstract Q-switched mode locking (QML) noise-like pulse (NLP) emission from an all-fiber thulium-doped laser based on the nonlinear polarization rotation effect is reported. The QML emission is obtained in a cavity with net anomalous dispersion in a pump power interval in between the CW laser threshold and the threshold of the NLP regime. Highest-energy QML pulses were observed with a repetition rate of 812 kHz with a pump power of 520 mW at the optical wavelength of 1881.09 nm. A maximum overall energy of 460 nJ at an average output power of 6.4 mW was reached, which corresponds to a burst of mode-locked noise-like sub-pulses with 8.7 ns of pulse duration within a QML envelope of 11 µs. Th…

Nonlinear polarization rotationPhysicsQ-switched mode lockingbusiness.industryPhysics::Opticschemistry.chemical_elementPulse durationThulium-doped fiber lasersQC350-467Optics. LightÒpticaLaserNoise (electronics)Atomic and Molecular Physics and OpticsPulse (physics)law.inventionThuliumOpticschemistryMode-lockinglawFiber laserbusinessEnvelope (waves)Results in Optics
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