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Effect of heating on the optical loss in the As-Se glass fiber

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4 Author(s)
Nguyen, V.Q. ; Opt. Sci. Div., Naval Res. Lab., Washington, DC, USA ; Sanghera, J.S. ; Pureza, P.C. ; Aggarwal, I.D.

The increase in the optical loss of the IR-transmitting arsenic-selenide glass fiber in the temperature range of 150°C ≥T≥ 20°C was investigated. Between the wavelength region of 1.3 and 8 μm, there is a small increase in the loss in which the contribution of free-carrier absorption is small. At high temperature T=150°C and λ≥8 μm, both the free-carrier and multiphonon absorption contributed to the total loss. From a practical perspective, the As-Se fiber loss increases only slightly under normal operating temperatures and so can still be used for many applications.

Published in:

Lightwave Technology, Journal of  (Volume:21 ,  Issue: 1 )

Date of Publication:

Jan 2003

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