Picosecond optical signal processing based on transmissive fiber Bragg gratings
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Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
María R Fernández-Ruiz1, Ming Li, Mansour Dastmalchi
1Institut National de la Recherche Scientifique—Énergie, Matériaux et Télécommunications, Montréal (QC) H5A 1K6, Canada. ruiz@emt.inrs.ca
Abstract:
We report the experimental realization of an ultrafast (terahertz-bandwidth) linear optical signal processor, particularly a picosecond flat-top optical pulse shaper, based on a fiber Bragg grating (FBG) working in transmission. The used FBG design technique, based on a specially apodized linearly chirped FBG, enables the synthesis of readily feasible devices with processing bandwidths well in the terahertz range. The specific device reported here is successfully demonstrated for reshaping ultrashort (400 fs FWHM) optical Gaussian-like pulses into 2 ps flat-top pulses.
