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High frequency microwave signal generation using dual-wavelength emission of cascaded DFB fiber lasers with wavelength spacing tunability

2010

[EN] A dual wavelength fiber laser source based on two cascaded phase-shifted fiber Bragg gratings is presented The gratings are written in an erbium-doped fiber each configuring the cavity of a distributed feedback fiber laser The spacing between lasing modes is controlled dynamically by the use of piezoelectric actuators A continuous tuning range of 5-724 pm of the wavelength difference which is equivalent to a photodetected 072-92 GHz range is obtained Efficient generation from the L to the W microwave and millimeter bands has been achieved by heterodyne photodetection of the dual-wavelength optical signal (C) 2010 Elsevier BV All rights reserved

Materials sciencePhysics::OpticsMicrowave generationPolarization-maintaining optical fiber02 engineering and technology7. Clean energyGraded-index fiberFiber lasers020210 optoelectronics & photonicsOpticsFiber Bragg gratingDual-wavelength laserFiber laserTEORIA DE LA SEÑAL Y COMUNICACIONES0202 electrical engineering electronic engineering information engineeringFiber Bragg gratingsDispersion-shifted fiberElectrical and Electronic EngineeringPhysical and Theoretical ChemistryPlastic optical fiberbusiness.industry020208 electrical & electronic engineeringLong-period fiber gratingAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsFiber optic sensorOptoelectronicsbusinessOptics Communications
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