Search results for "Fiber Lasers"

showing 4 items of 24 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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All-Fiber Laser With Intracavity Acousto-Optic Dynamic Mode Converter for Efficient Generation of Radially Polarized Cylindrical Vector Beams

2017

We report an all-fiber laser that emits a radially polarized cylindrical vector beam (CVB) at 1 μm based on an intracavity acousto-optic mode converter. We efficiently generate the CVB, taking advantage of the acousto-optic coupling from the HE11 mode to the TM01 mode in a two-mode fiber. The laser can be switched from emitting a Gaussian-like beam to a radially polarized CVB. Radially polarized CVBs with modal and polarization purities >98% and a maximum power of 65 mW were generated.

lcsh:Applied optics. PhotonicsMaximum power principlePhysics::Optics02 engineering and technologyLaser modes01 natural scienceslaw.invention010309 optics020210 optoelectronics & photonicsOpticslawradial polarization.Fiber laser0103 physical sciences0202 electrical engineering electronic engineering information engineeringlcsh:QC350-467Electrical and Electronic EngineeringFiber Laserscylindrical vector beams (CVBs)PhysicsCouplingLaser excitationbusiness.industryCylindrical vector beamFiber laserlcsh:TA1501-1820Polarization (waves)LaserUNESCO::FÍSICA::Óptica ::Fibras ópticasAtomic and Molecular Physics and OpticsAll fiber:FÍSICA::Óptica ::Fibras ópticas [UNESCO]CouplingsOptoelectronicsbusinessOptical fiber polarizationBeam (structure)lcsh:Optics. LightLaser beamsIEEE Photonics Journal
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Experimental study of an in-fiber acousto-optic tunable bandpass filter for single- and dual-wavelength operation in a thulium-doped fiber laser

2019

A tunable single- and dual-wavelength thulium-doped all-fiber laser is demonstrated based on the implementation of an in-fiber acousto-optic tunable bandpass filter (AOTBF). The AOTBF is fabricated to be operated in the 1.9 µm region, and takes advantage of the intermodal coupling effect produced by traveling flexural acoustic waves in an optical fiber. It exhibits a 3-dB bandwidth of 2.04 nm with an insertion loss of 4.75 dB. The tuning properties of the AO device allows a continuous-wave operation with characteristics of wide tuning range (211.5 nm), narrow linewidth (50 pm) and high signal-to-noise ratio (60 dB). In the dual-wavelength regime, the laser is capable of independent tuning o…

Optical fiberMaterials scienceoptical fibers02 engineering and technology01 natural scienceslaw.invention010309 opticsLaser linewidthOpticsFiber Bragg gratingBand-pass filterlawFiber laser0103 physical sciencesInsertion lossUNESCO::FÍSICA::Ópticabusiness.industry021001 nanoscience & nanotechnologyLaserAtomic and Molecular Physics and Opticsacousto-optic interactionfiber lasersWavelength:FÍSICA::Óptica [UNESCO]0210 nano-technologybusiness
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Optical Soliton Molecules in Fiber Lasers

2006

Recent experiments demonstrate that fiber laser cavities are able to support various multisoliton complexes, analogous to soliton molecules, which could have impact on optical information transmission or storage. These advances are guided by the concept of dissipative soliton.

Information transmissionMaterials sciencebusiness.industryFiber nonlinear opticsPhysics::Optics01 natural sciences3. Good health010309 opticsDissipative solitonNonlinear Sciences::Exactly Solvable and Integrable SystemsOpticsFiber laser0103 physical sciencesLaser mode lockingOptoelectronicsMoleculeSoliton010306 general physicsbusinessNonlinear Sciences::Pattern Formation and SolitonsErbium doped fiber lasersComputingMilieux_MISCELLANEOUS
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