Infra-Red Optical Properties Of Glasses And Ceramics For Hollow Waveguides Operating At 10.6 Âµm Wavelength

Clive A Worrell

doi:10.1117/12.968217

1 January 1987 Infra-Red Optical Properties Of Glasses And Ceramics For Hollow Waveguides Operating At 10.6 µm Wavelength

Clive A Worrell

Author Affiliations +

Proceedings Volume 0843, Infrared Optical Materials and Fibers V; (1987) https://doi.org/10.1117/12.968217
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

The infra-red optical constants of certain ceramics and glasses have been determined in the wavelength range 5-55 μm to assess their potential as hollow waveguides at 10.6 μm. Materials have been selected which are likely to exhibit significant anomalous dispersion at this wavelength, and glasses based on germanium dioxide are shown to be candidate materials for development into hollow flexible waveguides. It is demonstrated that modifying oxide additions to the base glass, Ge0₂, increase the predicted waveguide loss at 10.6 μm. Devitrification of these glasses is proposed as a means of further reducing waveguide loss and some supporting data are presented. Experimental CO2 laser power transmission measurements on hollow fibers fabricated from Ge02 and SiO₂ based glasses are presented for both straight and curved guides. The data demonstrates that considerable improvement in transmission is derived in both configurations when the refractive index of the glass is significantly less than unity at 10.6 μm.

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Clive A Worrell "Infra-Red Optical Properties Of Glasses And Ceramics For Hollow Waveguides Operating At 10.6 µm Wavelength", Proc. SPIE 0843, Infrared Optical Materials and Fibers V, (1 January 1987); https://doi.org/10.1117/12.968217

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