Inverse-square wavelength dependence of attenuation in IR polycrystalline fibers

James A. Harrington; Marshall Sparks

doi:10.1364/CLEO.1983.THT2

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1983),
paper THT2
•https://doi.org/10.1364/CLEO.1983.THT2

Inverse-square wavelength dependence of attenuation in IR polycrystalline fibers

James A. Harrington and Marshall Sparks

Conference on Lasers and Electro-Optics 1983

Baltimore, Maryland United States
17–20 May 1983
ISBN:

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Optical Waveguides and Fiber Sensors (THT)

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J. A. Harrington and M. Sparks, "Inverse-square wavelength dependence of attenuation in IR polycrystalline fibers," in Conference on Lasers and Electro-Optics, G. Sincerbox, T. Li, A. Gara, and C. Giuliano, eds., OSA Technical Digest (Optica Publishing Group, 1983), paper THT2.

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Abstract

KRS-5 fibers are used principally in 8-12-μm optical systems and currently represent the best fiber choice for this wavelength region. The fiber loss is typically 1 dB/m, which is a factor of ~1000 greater than the intrinsic absorption¹ of KRS-5. To better understand this large extrinsic loss, we studied the total attenuation α_T and the attenuation due to scattering α_s for our fibers.

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