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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Littler, Ian C. M.
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Publications (3/3 displayed)
- 2007Highly nonlinear chalcogenide fibres for all-optical signal processingcitations
- 2006Self-phase modulation-based integrated optical regeneration in chalcogenide waveguidescitations
- 2006High-performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometercitations
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article
High-performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer
Abstract
<p>We demonstrate the highest-quality Bragg gratings reported to date in chalcogenide glass rib waveguides, both in strength and apodization. A modified Sagnac interferometer is employed to write gratings in As<sub>2</sub>S<sub>3</sub>-based rib waveguides, achieving an induced refractive index modulation of the order of 10<sup>-2</sup> and a grating transmission rejection of more than 30 dB. We obtain good agreement between experimental and theoretical results based on a transfer-matrix formulation for multilayer optical structures. In addition, we report fabrication of phase-shifted Bragg gratings, as well as an investigation of the role of birefringence, higher-order modes, and aging. Finally, grating growth dynamics are investigated by in situ monitoring during writing.</p>