Thermographic evaluation of Er-doped silica fiber as IR-to-visible image converter

Abstract

A novel concept for IR-to-visible converter is based on the up-conversion, upon pumping with the near IR radiation. The theoretical heat transfer predictions were followed by the experimental results whereby the fiber was maintained at a series of temperatures. Currently, an IR camera (2003 CEDIP), sensitive in the spectral range from 8 µm to 12 µm is being used to ascertain the validity of the temperature measurements.

Thin bonding wires temperature measurement using optical fiber sensors

“…This implies thinner bond wires, conducting higher currents, with an increase in their operating temperatures. Wire temperature values can be measured using infrared thermal CCDs [16,4], however the image pixel resolution is usually greater than that of the dimensions of the wire, leading to errors in calculating the real temperature. Several methods have been proposed to compute and estimate the maximum current that can be conducted in a thin bonding wire [12][13][14].…”