0000000000389092

AUTHOR

Jesús Palací

showing 3 related works from this author

Stable Optically Generated RF Signals from a Fibre Mode-Locked Laser

2010

Phase stability of RF signals obtained by two-mode filtering of a fibre mode-locked laser is analyzed. Time jitter is shown to be constant with selected mode spacing, confirming the scheme capability for generating stable RF signals up to extremely-high frequency.

Optical fiberMaterials sciencebusiness.industryMode (statistics)02 engineering and technologyLaser01 natural scienceslaw.invention010309 optics020210 optoelectronics & photonicsOpticslawFiber laser0103 physical sciencesPhase noise0202 electrical engineering electronic engineering information engineeringRadio frequencybusinessOptical filterJitter
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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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All-fiber processing of terahertz-bandwidth signals based on cascaded tapered fibers

2013

Tapered single-mode fibers are employed to perform dynamic pulse shaping in a bandwidth of several terahertz. The transfer function of cascaded biconical tapers is controlled by introducing a phase shift into one of them through mechanical stretching. It is a simple and low-cost technique with potential to process signals with bandwidths as large as those allocated by standard optical fiber while introducing little degradation. Femtosecond pulses are shaped to prove the concept. (C) 2013 Optical Society of America

Femtosecond pulse shapingMaterials scienceOptical fiberbusiness.industryTerahertz radiationBandwidth (signal processing)Physics::OpticsNonlinear opticsFiber measurementsTransfer functionPulse shapingAtomic and Molecular Physics and Opticslaw.inventionOpticslawTEORIA DE LA SEÑAL Y COMUNICACIONESFemtosecondFiber design and fabricationDispersion.businessOptics Letters
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