Fabry–Perot interference temperature sensor integrated high-power-laser optical fiber probe for laser ablation

This is the authors' abstract. We don't add key points for this paper.

In this study, an optical fiber probe with an extremely short integrated temperature sensor for high-power laser ablation was proposed and successfully fabricated. Both optical mode and wavelength multiplication were performed simultaneously using a double-clad fiber with a wavelength-division multiplication technique. The wavelength shift with temperature showed a linear relationship with a sensitivity of 10 pm/°C. High-power laser irradiation of 1000 mW or more using multimode transmission and fine temperature monitoring using single-mode transmission were performed simultaneously with a system response time of a few seconds. The laser wavelength selection and power variation can increase the variability of the heating region required for medical applications.