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Chalcogenide glasses, which contain S, Se or Te atoms combined with network forming elements such as Ge, As, Sb have the largest third order optical nonlinearity of any inorganic glass. As a result they are attractive candidates for fibre and waveguide devices for all-optical signal processing in the telecommunications bands. In this talk I will review our recent progress in all-optical devices such...
We measured the wavelength dispersion of magneto-optic rotation in amorphous chalcogenide thin-films deposited by pulsed laser deposition. The largest rotation is achieved in films with high Germanium concentration being more than 25-times greater than silica.
The waveguide-based directional couplers in As2S3 glass were fabricated by using inductively coupled plasma (ICP) etching. Their ultrafast all-optical switching operation was demonstrated at 1.53 mum with switching peak power of 55 W
We report high performance Bragg gratings in As2S3 chalcogenide glass rib waveguides, written with a modified Sagnac interferometer for the first time. Grating growth dynamics obtained from an in-situ monitoring system are presented and analyzed
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