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RESEARCH PRODUCT
Photonic fractional Fourier transformer with a single dispersive device
Miguel V. AndrésChristian Cuadrado-labordeA. CarrascosaJose L. CruzAntonio Diezsubject
Signal processingMaterials scienceOptical fiberEspectroscòpia infraroja de transformada de FourierCiencias FísicasPhysics::OpticsFractional fourier transformFiber opticslaw.invention//purl.org/becyt/ford/1 [https]symbols.namesakeOpticsFiber Bragg gratinglawFiber Optic Technologysignal processingÓpticafiber opticsFourier Analysisbusiness.industryShort-time Fourier transformFísica//purl.org/becyt/ford/1.3 [https]Equipment DesignÒpticaAtomic and Molecular Physics and OpticsFractional Fourier transformFractional Fourier transformEquipment Failure AnalysisRefractometryFourier transformEnergy TransferFourier analysissymbolsTelecommunicationsComputer-Aided DesignPhotonicsbusinessCIENCIAS NATURALES Y EXACTASFresnel diffractiondescription
In this work we used the temporal analog of spatial Fresnel diffraction to design a temporal fractional Fourier transformer with a single dispersive device, in this way avoiding the use of quadratic phase modulators. We demonstrate that a single dispersive passive device inherently provides the fractional Fourier transform of an incident optical pulse. The relationships linking the fractional Fourier transform order and scaling factor with the dispersion parameters are derived. We first provide some numerical results in order to prove the validity of our proposal, using a fiber Bragg grating as the dispersive device. Next, we experimentally demonstrate the feasibility of this proposal by using a spool of a standard optical fiber as the dispersive device.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-04-01 |