Stabilized Ultra-High-Temperature Sensors Based on Inert Gas-Sealed Sapphire Fiber Bragg Gratings.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c24589
Abstract: In situ measurement of high temperature is critical in aerospace, petrochemical, metallurgical, and power industries. The single-crystal sapphire fiber is a promising material for high-temperature measurement owing to its high melting point of ∼2045 °C.… read more here.
Keywords: ultra high; inert gas; temperature; high temperature ... See more keywords
Sapphire Fiber High-Temperature Sensor Based on Colorimetric Method
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3189738
Abstract: A colorimetric high-temperature sensor based on a sapphire fiber bundle is reported in this work. The radiation voltage ratio of two neighboring wavelengths is used to detect the temperature. The sapphire fiber bundle can increase… read more here.
Keywords: sapphire fiber; temperature sensor; temperature; high temperature ... See more keywords
Distributed Sapphire Fiber Bragg Grating-Based Thermal Profiling of Submerged Entry Nozzles
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2025.3593567
Abstract: This article focuses on the application of sapphire fiber Bragg gratings (FBGs) for instrumentation in submerged entry nozzles (SENs) within the steelmaking industry. The SEN is pivotal for transferring molten steel from a tundish to… read more here.
Keywords: sapphire fiber; sapphire; entry nozzles; fiber bragg ... See more keywords
Diaphragm-free gas pressure sensor based on all-sapphire fiber Fabry-Perot interferometers.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.463892
Abstract: An all-sapphire fiber external Fabry-Perot interferometer (EFPI) sensor for measuring gas pressure is proposed and investigated. The sensor head is manufactured from a sapphire fiber ferrule and sapphire tube, and the same material can ensure… read more here.
Keywords: gas; sapphire fiber; gas pressure; pressure ... See more keywords
Higher-order mode suppression technique for multimode sapphire fiber external Fabry-Perot interferometers.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.450331
Abstract: A signal picked-up technique to improve the demodulation stability and accuracy of sapphire fiber external Fabry-Perot interferometer is proposed and demonstrated. Through fusion splicing four pieces of multimode fiber in sequence with different core diameters,… read more here.
Keywords: technique; sapphire fiber; fiber; fabry perot ... See more keywords
All-sapphire fiber-optic pressure sensors for extreme harsh environments.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.451764
Abstract: In this paper, an all-sapphire fiber-optic Fabry-Perot (F-P) pressure sensor is proposed. The sapphire pressure-sensitive diaphragm with low surface roughness is fabricated by MEMS wet etching. The direct bonding process is adopted to bond the… read more here.
Keywords: sensor; pressure; fiber optic; sapphire fiber ... See more keywords
All-sapphire fiber-optic sensor for the simultaneous measurement of ultra-high temperature and high pressure.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.519656
Abstract: An all-sapphire fiber-optic extrinsic Fabry-Perot interferometric (EFPI) sensor for the simultaneous measurement of ultra-high temperature and high pressure is proposed and experimentally demonstrated. The sensor is fabricated based on all-sapphire, including a sapphire fiber, a… read more here.
Keywords: temperature; pressure; sapphire; sapphire fiber ... See more keywords
Femtosecond laser inscribed helical sapphire fiber Bragg gratings.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.439373
Abstract: This Letter reports a novel helical sapphire fiber Bragg grating (HSFBG) in a single crystal sapphire fiber with diameter of 60 µm fabricated by a 515 nm femtosecond laser. Due to the large refractive index… read more here.
Keywords: sapphire fiber; femtosecond laser; fiber bragg; sapphire ... See more keywords
Boosting photoconductive large-area THz emitter via optical light confinement behind a highly refractive sapphire-fiber lens.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.452192
Abstract: We report on a sapphire-fiber-based lens that can be used to enhance the emitted THz power of a large-area photoconductive antenna (PCA). Using numerical simulations, we demonstrate that the lens provides a spatial redistribution of… read more here.
Keywords: sapphire; large area; sapphire fiber; thz ... See more keywords