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7. Polarization attraction coupled with all-optical intensity regeneration
Pulses propagating in fiber-optic telecommunication systems undergo various distortions due to the accumulation of linear and non-linear propagative effects. These distortions mainly result in fluctuations in the intensity of the pulses representing the "1s", and in the appearance of so-called "ghost pulses" at the "0s". What's more, the polarization state of light at the output of a transmission fiber varies randomly, according to local variations in temperature and stress. There is therefore a real interest in designing systems that can regenerate both the polarization and the intensity profile of pulses.
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Polarization attraction coupled with all-optical intensity regeneration
Polarization attraction without pump wave: self-polarization concept
Bibliography
Websites
Solitons, lasers and optical communications team https://icb.u-bourgogne.fr/safir/
Research program on self-polarizing light phenomena https://www.facebook.com/petal.inside?fref=ts
Patents
PITOIS (S.) and FATOME (J.). – All-optical polarization control system with contra-propagating pump beam. N° FR 2010/051826
PITOIS (S.), FATOME (J.), MORIN (P.) and MILLOT (G.). – Method and device for controlling a physical parameter of an optical signal. N° FR 11/02472
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