Gs. Maciel et al., TEMPERATURE SENSOR-BASED ON FREQUENCY UP-CONVERSION IN ER3-DOPED FLUOROINDATE GLASS(), IEEE photonics technology letters, 7(12), 1995, pp. 1474-1476
We describe the characterization of a temperature sensor based on the
infrared-to-visible frequency upconversion process excited in a sample
of Er3+-doped fluoroindate glass. The present results demonstrate the
feasibility of constructing a compact practical device using a low-po
wer CW 148-mu m diode laser as the excitation source.