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Optics and quantum information research center (OptIQ)

(Code: ULB690)



The optics and quantum information research center '' OptIQ '' is composed of three teams working in the fields of quantum information, quantum optics and
nonlinear optics. These teams are the Service OPERA-photonique (Faculty of Applied Science), the Service de Théorie de l'Information et des Communications
''QuIC'' (Faculty of Applied Science) and the Laboratoire d'Information Quantique ''LIQ'' (Faculty of Science). The first domain of activity of OptIQ is
nonlinear guided optics. The OPERA-photonics group has developed a strong theoretical and experimental research activity during the last 25 years dealing
with nonlinear optics in fibres and ultrafast phenomena. Under the leadership of Philippe Emplit and Marc Haelterman, this group was one of the first
involved in research on dark solitons thanks to his experience in manipulation and characterization of ultra short optical pulses. The first experimental
realisation of darkk soliton was carried out in 1987 in collaboration with the Université de Limoges. Based on recent theoretical research, the group started
experimental research on vectorial solitons and modulational instability in fibers. One of the aims of this research activity is to prove the existence of new
fundamental solitonic phenomena and to analyse their potential application for optical telecommunication. The OPERA-photonics group is also involved in a
research activity on ultra-high repetition rate laser sources. Techniques of passive mode-locking are investigated in order to get round the limitations due
to the electronic bandwidth. One of these techniques is based on modulational instability in passive fiber laser cavities. Another new technique,
presently under study, consists in passive mode-locking induced by dissipative four-wave mixing in Erbium-doped fiber lasers. The second field of OptIQ activities
is quantum information. This research activity started a dozen years ago based on the fact that information processing at quantum scale offers
opportunities unmatched at the classical scale. For example, quantum cryptography (ie encrypting a message thanks to the quantum properties of an information carrier)
gives a security level that doesn't exist in classical cryptography. This is because, contrary to the techniques generally used to transmit confidential
data, quantum cryptography does not depend on any computational hypothesis. In the same way, a quantum computer could solve some computational problems much
more quickly than a cl

Campus : Campus du Solbosch
Location : Service OPERA-photonique 87C Avenue Buyl - Bâtiment C, Niveau 3 - Local C3.122A
Address : CP194/05 Bruxelles
Phone number : +32-2-650.30.96
Fax : +32-2-650.44.96
E-mail : Alexandra.peereboom@ulb.ac.be
Web site : http://opera.ulb.ac.be/Photonics@be