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RESEARCH PRODUCT

Self-referenced phase reconstruction proposal of Ghz bandwidth non-periodical optical pulses by in-fiber semi-differintegration

Christian Cuadrado-labordeMiguel V. AndrésJesús Lancis

subject

PhysicsMode volumePhase reconstructionMulti-mode optical fiberbusiness.industryFiber optics systemsBandwidth (signal processing)Fractional calculusPolarization-maintaining optical fiberLong-period fiber gratingAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsOpticsOperator (computer programming)Fiber Bragg gratingFiber optic sensorFiber Bragg gratingsElectrical and Electronic EngineeringPhysical and Theoretical Chemistrybusiness

description

Abstract We propose two new techniques able to retrieve the phase profile of a given temporal optical pulse based on the use of in-fiber semi-differintegral operators, where by semi-differintegration we mean either a 0.5th-order differentiation or integration. In both cases, the signal's temporal phase can be obtained by simple dividing two temporal intensity profiles, namely the intensities of the input and output pulses of a spectrally shifted semi-differintegral operator. In both cases, we obtained simple analytical expressions for the phase profile. The techniques are self-referenced and well-suited for real-time applications. We numerically prove the viability of these proposals.

10.1016/j.optcom.2011.07.077