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Title: Integrated optical temporal Fourier transformer based on a chirped Bragg grating waveguide
Authors: Paulo Vicente Marques
José Azaña
Roberto Morandotti
Peter R. Herman
Ksenia Dolgaleva
Antonio Malacarne
Pamela Tannouri
Luís André Fernandes
Jason R. Grenier
J. Stewart Aitchison
Issue Date: 2011
Abstract: We experimentally demonstrate the first integrated temporal Fourier transformer based on a linearly chirped Bragg grating waveguide written in silica glass with a femtosecond laser. The operation is based on mapping the energy spectrum of the input optical signal to the output temporal waveform by making use of first-order chromatic dispersion. The device operates in reflection, has a bandwidth of 10 nm, and can be used for incident temporal waveforms as long as 20 ps. Experimental results, obtained through both temporal oscilloscope traces and Fourier transform spectral interferometry, display a successful Fourier transformation of in-phase and out-of-phase pairs of input optical pulses, and demonstrate the correct functionality of the device for both amplitude and phase of the temporal output.
metadata.dc.type: article
Appears in Collections:CAP - Articles in International Journals

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