This work reports on the development of an optical fiber based probe for in vivo measurements of brain temperature. By utilizing a thin layer of rare-earth doped tellurite glass on the tip of a conventional silica optical fiber a robust probe, suitable for long-term in vivo measurements of temperature can be fabricated. This probe can be interrogated using a portable optical measurement setup, allowing for measurements to be performed outside of standard optical laboratories.
Keywords: (060.2370) Fiber optics sensors; (120.6780) Temperature; (170.3890) Medical optics instrumentation; (170.6280) Spectroscopy, fluorescence and luminescence.