Experimental observation of infrared spectral enlargement in As2S3 suspended core microstructured fiber

M. El-Amraoui; J. Fatome; J. C. Jules; B. Kibler; G. Gadret; I. Skripatchev; Y. Messadeq; G. Renversez; M. Szpulak; J. Troles; L. Brilland; F. Smektala

doi:10.1117/12.853698

14 May 2010 Experimental observation of infrared spectral enlargement in As₂S₃ suspended core microstructured fiber

M. El-Amraoui, J. Fatome, J. C. Jules, B. Kibler, G. Gadret, I. Skripatchev, Y. Messadeq, G. Renversez, M. Szpulak, J. Troles, L. Brilland, F. Smektala

Author Affiliations +

Proceedings Volume 7714, Photonic Crystal Fibers IV; 771409 (2010) https://doi.org/10.1117/12.853698
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

The development of chalcogenide glasses fibers for application in the infrared wavelength region between 1 and 10 μm is a big opportunity. More particularly, the possibility to generate efficient non linear effects above 2 μm is a real challenge. We present in this work the elaboration and optical characterizations of suspended core microstructured optical fibers elaborated from the As₂S₃ chalcogenide glass. As an alternative to the stack and draw process a mechanical machining has been used to the elaboration of the preforms. The drawing of these preforms into fibers allows reaching a suspended core geometry, in which a 2.5 μm diameter core is linked to the fiber clad region by three supporting struts. The zero dispersion wavelength is thus shifted towards 2 μm. At 1.55 μm our fibers exhibit a dispersion around -250 ps/nm/km. Their background level of losses is below 0,5 dB/m. By pumping them at 1.55 μm with a ps source, we observe self phase modulation as well as Raman generation. Finally a strong spectral enlargement is obtained with an average output power of - 5 dbm.

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M. El-Amraoui, J. Fatome, J. C. Jules, B. Kibler, G. Gadret, I. Skripatchev, Y. Messadeq, G. Renversez, M. Szpulak, J. Troles, L. Brilland, and F. Smektala "Experimental observation of infrared spectral enlargement in As₂S₃ suspended core microstructured fiber", Proc. SPIE 7714, Photonic Crystal Fibers IV, 771409 (14 May 2010); https://doi.org/10.1117/12.853698

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