6533b855fe1ef96bd12b12a0

RESEARCH PRODUCT

All-fiber incoherent frequency-to-time mapping method for microwave signal generation with baseband transmission and multicasting support

Pedro AndrésIdelfonso Tafur MonroyJesús LancisVíctor Torres-company

subject

PhysicsOptical amplifierOptical fiberRadio frequency photonicsbusiness.industryPhysics::OpticsPassive optical networkPulse shapingAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionOpticsTransmission (telecommunications)lawBasebandFourier optics and signal processingElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessOptical filterIntensity modulation

description

We present a proof-of-principle experiment for achieving simultaneous distribution of baseband radio-frequency data and up-conversion with broadcasting support over a passive optical network. The technique is based on an incoherent frequency-to-time mapping method for pulse shaping. Specifically, we synthesize the spectral density function of sliced ASE noise from an EDFA with a periodic Mach-Zehnder fiber interferometer optical filter. By using external intensity modulation combined with propagation in an optical fiber, after photodetection, the resultant averaged temporal pulse profile resembles the shape of the incoherent source. The photodetected signal contains both the baseband data and an up-frequency converted copy with central wavelength for the microwave carrier into the ultra-wideband range and tuning capability by selection of the fiber length. © 2008 Elsevier B.V. All rights reserved.

yearjournalcountryeditionlanguage
2008-08-01
10.1016/j.optcom.2008.04.021