6533b82cfe1ef96bd128e91a

RESEARCH PRODUCT

Tunable microwave photonic filter based on chirped fiber gratings working with a single optical carrier at constant wavelength

S. TorresPere Pérez-millánMiguel V. AndrésJose L. Cruz

subject

Optical fiberMaterials sciencebusiness.industryPhysics::OpticsLaserAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionOpticslawFilter (video)Optical Carrier transmission ratesFiber laserElectrical and Electronic EngineeringPhysical and Theoretical ChemistryPhotonicsbusinessDiffraction gratingFree spectral range

description

This paper presents a tunable transversal filter working with a single optical carrier at constant wavelength. The filter consists of a set of chirped gratings whose time delay is tuned with respect to the emission wavelength of a fiber laser by a piezoelectric actuator; extra lengths of fiber are inserted in the filter arms in order to avoid interferences between signals reflected in different gratings. Two and three taps filters are experimentally demonstrated, the filters transfer function is electronically tuned within the free spectral range.

yearjournalcountryeditionlanguage
2007-09-01Optics Communications
https://doi.org/10.1016/j.optcom.2007.05.019