Temperature Dependence of Optical Absorption of Polymers Used in Fiber Optics

Temperature dependence of the optical absorption of polysiloxane polymers generally used as fiber unit fillers was investigated. Absorption of the polymer measured at 1060 nm nonlinearly increased from 1.1·10
^-2
cm
^-1
to 2.1·10
^-2
cm
^-1
during heating from 20 °C to 145 °C. Thermal degradation of the polymer was observed at 160 °C.