High-temperature measurements above 1000° C are critical in harsh environments such as
aerospace, metallurgy, fossil fuel, and power production. Fiber-optic high-temperature …

A review is presented on high temperature measurement technology based on sapphire
optical fiber. This review paper focuses on the sensing theory, sensor structures and sensing …

High-temperature measurements are of significant importance in various harsh-environment
engineering fields, such as fossil fuel production, and the metallurgical and aviation …

A sapphire fiber high temperature sensor based on Fabry-Perot interference was studied in
the paper. A sapphire wafer served as the Fabry-Perot cavity was fixed to the end face of the …

Over the last 37 years, particular interest has been directed towards exploring the
characteristics of the optical environment for sensing, giving rise to what would now be one …

The state of the art of single crystal fiber (SCF) fabrication has evolved and improved over
the last five decades. Nowadays, edge‐defined film‐feed growth, micro‐pulling down, and …

A miniaturized tip Fabry-Perot interferometer (tip-FPI) is proposed for high-temperature
sensing. It is simply fabricated for the first time by splicing a short length of microfiber (MF) to …

We propose and demonstrate the fabrication of single-crystal sapphire fiber Bragg gratings
(SFBGs) using a femtosecond laser line-by-line scanning technique. This approach provides …

In this paper, we propose and demonstrate a miniature high-temperature fiber-optic sensor
based on tip-packaged Fabry-Perot interferometer which is insensitive to changes in …

We present, for the first time to our knowledge, a sapphire-fiber-based distributed high-
temperature sensing system based on a Raman distributed sensing technique. High peak …