Hybrid Growth of Clad Crystalline Sapphire Fibers for Ultra-High-Temperature (>1500 °C) Fiber Optic Sensors DOI Creative Commons
Mohammad Ahsanul Kabir, Kaicheng Wu,

Kai-Ting Chou

et al.

Photonics, Journal Year: 2025, Volume and Issue: 12(4), P. 299 - 299

Published: March 25, 2025

Ultra-high-temperature (>1500 °C) sensors play vital roles in ensuring operational excellence variety of energy-related applications, such as power plant boilers and gas turbine engines. Crystalline sapphire fibers have enormous potential to replace conventional expensive precious metal (e.g., Pt/Rh)-based high-temperature by offering higher environmental robustness distributed sensing capabilities. However, a lack proper cladding substantially compromises the performance sensor. To overcome this fundamental limitation, we develop hybrid growing method fabricate low-loss clad crystalline fibers. We grow higher-refractive-index doped fiber core using laser-heated pedestal growth (LHPG) lower-refractive-index undoped liquid-phase epitaxy (LPE) method. Furthermore, due existence layer, single mode operation can be achieved at diameter size 30 μm. The experimental results confirm that grown survive extremely harsh environments matched coefficient thermal expansion (CTE) between cladding. numerical also indicate temperature accuracy 3.5 °C. This opens door for developing point sensor networks capable enduring high temperatures.

Language: Английский

Machine Learning Optimized Optical Surface Plasmon Resonance Biosensor Using Locally Weighted Linear Regression for Rapid and Accurate Detection of Tuberculosis Biomarkers DOI
Basim Ahmad Alabsi, Jacob Wekalao,

Raman Dhivya

et al.

Plasmonics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Language: Английский

Citations

11
Hybrid Growth of Clad Crystalline Sapphire Fibers for Ultra-High-Temperature (>1500 °C) Fiber Optic Sensors DOI Creative Commons
Mohammad Ahsanul Kabir, Kaicheng Wu,

Kai-Ting Chou

et al.

Photonics, Journal Year: 2025, Volume and Issue: 12(4), P. 299 - 299

Published: March 25, 2025

Ultra-high-temperature (>1500 °C) sensors play vital roles in ensuring operational excellence variety of energy-related applications, such as power plant boilers and gas turbine engines. Crystalline sapphire fibers have enormous potential to replace conventional expensive precious metal (e.g., Pt/Rh)-based high-temperature by offering higher environmental robustness distributed sensing capabilities. However, a lack proper cladding substantially compromises the performance sensor. To overcome this fundamental limitation, we develop hybrid growing method fabricate low-loss clad crystalline fibers. We grow higher-refractive-index doped fiber core using laser-heated pedestal growth (LHPG) lower-refractive-index undoped liquid-phase epitaxy (LPE) method. Furthermore, due existence layer, single mode operation can be achieved at diameter size 30 μm. The experimental results confirm that grown survive extremely harsh environments matched coefficient thermal expansion (CTE) between cladding. numerical also indicate temperature accuracy 3.5 °C. This opens door for developing point sensor networks capable enduring high temperatures.

Language: Английский

Citations

0