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Birefringence Engineering and High Nonlinearity in Eccentric-Core As _{2} Se _{3} -PMMA Microtapers

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2 Author(s)
Chams Baker ; Department of Electrical and Computer Engineering, McGill University, Montreal, Canada ; Martin Rochette

A hybrid fiber with an eccentric As2Se3 core and a PMMA cladding is tapered to a submicron diameter to achieve ultra high birefringence and a high nonlinearity. The high birefringence is induced by having the As2Se3 core eccentric with respect to the circular PMMA cladding symmetry and the high nonlinearity is induced from a tightly confining As2Se3 core. Microwires with high group birefringence up to bg=0.018 and a high waveguide nonlinearity γ = 180 W-1m-1 are demonstrated.

Published in:

Journal of Lightwave Technology  (Volume:31 ,  Issue: 1 )