All-fiber incoherent frequency-to-time mapping method for microwave signal generation with baseband transmission and multicasting support |
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| Authors: | Víctor Torres-Company Idelfonso Tafur Monroy Jesús Lancis Pedro Andrés |
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| Institution: | 1. Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov str., Nizhny Novgorod 603950, Russia;2. Department of Chemistry, Lomonosov Moscow State University, GSP-1, 1 Vorobievy Gory, Moscow 119991, Russia;3. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, 3 Pyzhevsky per., Moscow 119017, Russia;1. Hanoi University of Science and Technology, Hanoi, Vietnam;2. Queen’s University Belfast, Belfast, United Kingdom;3. Duy Tan University, Da Nang, Vietnam;4. Guangdong University of Petrochemical Technology, Guangdong, China |
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| Abstract: | 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. |
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