CIOP   05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Pulse processing in optical fibers using the temporal Radon-Wigner transform
Autor/es:
LAUREANO A. BULUS ROSSINI; PABLO A. COSTANZO CASO; RICARDO DUCHOWICZ; ENRIQUE E. SICRE
Lugar:
Lima
Reunión:
Congreso; XVII Reunión Iberoamericana de Óptica (RIAO) & X Encuentro de Óptica, Láseres y Aplicaciones (OPTILAS); 2010
Institución organizadora:
Pontificia Universidad Católica del Perú
Resumen:
It is presented the use of the temporal Radon-Wigner transform (RWT), which is the squared modulus of
the fractional Fourier transform (FRT) for a varying fractional order p, as a processing tool for pulses with
FWHM of ps-tens of ps. For analysis purposes, the complete
numerical generation of the RWT with 0 < p < 1 is proposed to select a particular pulse
shape related to a determined value of p.
To this end, the amplitude and phase of the signal to be processed are obtained
using a pulse characterization technique. To synthesize the processed pulse, the
selected FRT irradiance is optically produced employing a photonic device that
combines phase modulation and dispersive transmission. The practical
implementation of this device involves a scaling factor that depends on the
modulation and dispersive parameters. It is explored the variation of this
factor in order to obtain an enhancement of the particular characteristic sought
in the pulse to be synthesized. To illustrate the implementation of the
proposed method, numerical simulations of its application to compress signals
commonly found in fiber optic transmission systems, are performed. The examples
presented consider chirped Gaussian pulses and pulses distorted by group
velocity dispersion and self-phase modulation.