Chalcogenide-tellurite composite microstructured optical fibre

T. Kohoutek; Z. Duan; H. Kawashima; X. Yan; T. Suzuki; M. Matsumoto; Takashi Misumi; Y. Ohishi

doi:10.1117/12.905734

19 March 2012 Chalcogenide-tellurite composite microstructured optical fibre

T. Kohoutek; Z. Duan; H. Kawashima; X. Yan; T. Suzuki; M. Matsumoto; Takashi Misumi; Y. Ohishi

Author Affiliations +

Proceedings Volume 8257, Optical Components and Materials IX; 82570D (2012) https://doi.org/10.1117/12.905734
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We report on fabrication a composite microstructured optical fibre composed of highly nonlinear chalcogenide Ge-Ga- Sb-S glass core and tellurite TeO₂-ZnO-Li₂0-Bi₂O₃ glass clad. We aimed at obtaining more flattened chromatic dispersion for pumping chalcogenide glass based optical fibre by a pulse laser at current telecommunication wavelengths, i.e. λ = 1.35 - 1.7 μm, which is difficult to achieve by using a single material chalcogenide fibers due to their high refractive index (n > 2.1). A fibre design exploiting a composite of two glasses and one ring of the air holes brings similar options for tuning the fibre dispersion such as use of complex multi rings of air-holes approach. A good choice of glasses, allows for fabricating a composite chalcogenide-tellurite optical fibre benefiting from high nonlinearity of chalcogenide core glass but exploiting a tellurite glass technology and fibre drawing. In the paper, we discuss some aspects of CMOF design concerning current chalcogenide and tellurite glass choice. Also, we show the supercontinuum spectra recorded from current chalcogenide-tellurite CMOF pumped with a custom made femtosecond fibre laser at λ = 1.55 μm with the pulse duration of 400 fs.

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T. Kohoutek, T. Kohoutek, Z. Duan, Z. Duan, H. Kawashima, H. Kawashima, X. Yan, X. Yan, T. Suzuki, T. Suzuki, M. Matsumoto, M. Matsumoto, Takashi Misumi, Takashi Misumi, Y. Ohishi, Y. Ohishi, } "Chalcogenide-tellurite composite microstructured optical fibre", Proc. SPIE 8257, Optical Components and Materials IX, 82570D (19 March 2012); doi: 10.1117/12.905734; https://doi.org/10.1117/12.905734

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