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      author       = "Carlos Alberto Aranda Agüera",
      title        = "Wavelength tunable short pulses sources based on frequency
                      comb generation in a Mach-Zehnder modulator",
      month        = "Jul",
      year         = "2011",
      abstract     = "In this thesis we present the study of the implementation
                      of ultrashort pulses using frequency comb generation in a
                      Mach-Zehnder modulator and chirp compensation in a standard
                      single-mode fiber. Two possible configurations have been
                      developed and optimized to obtain a picosecond pulse train.
                      An additional stage of pulse compression was necessary to
                      arrive to femtosecond pulses, and a nonlinear fiber was
                      employed. An analysis of a complete optical communication
                      system using the generated pulses with OOK modulation and
                      OTDM was devoted and a relation between pulse parameters and
                      the BER sensitivity was evaluated. A numerical model with
                      Matlab software has been developed for the required
                      analysis. Finally, an experimental solution of the pulse
                      source has been devoted in the Fotonik’s laboratory,
                      obtaining results that we compared with the simulated ones.",