Actas de congresos
Nonlinear effects generation in suspended core chalcogenide fibre
Fecha
2011-06-15Registro en:
Proceedings of SPIE - The International Society for Optical Engineering, v. 8073.
0277-786X
10.1117/12.886720
2-s2.0-79958279678
2998503841917815
Autor
Université de Bourgogne
DOTA
Université d'Aix-Marseille
Université de Rennes 1
PERFOS
Universidade Estadual Paulista (Unesp)
Institución
Resumen
In this work we report our achievements in the elaboration and optical characterizations of low-losses suspended core optical fibers elaborated from As2S3 glass. For preforms elaboration, alternatively to other processes like the stack and draw or extrusion, we use a process based on mechanical drilling. The drawing of these drilled performs into fibers allows reaching a suspended core geometry, in which a 2 μm diameter core is linked to the fiber clad region by three supporting struts. The different fibers that have been drawn show losses close to 0.9 dB/m at 1.55 μm. The suspended core waveguide geometry has also an efficient influence on the chromatic dispersion and allows its management. Indeed, the zero dispersion wavelength, which is around 5 μm in the bulk glass, is calculated to be shifted towards around 2μm in our suspended core fibers. In order to qualify their nonlinearity we have pumped them at 1.995 μm with the help of a fibered ns source. We have observed a strong non linear response with evidence of spontaneous Raman scattering and strong spectral broadening. © 2011 SPIE.
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