A fiber-optic bolometer based on a high-finesse silicon Fabry-Pérot interferometer

2018 ◽  
Vol 89 (6) ◽  
pp. 065002 ◽  
Author(s):  
Qiwen Sheng ◽  
Guigen Liu ◽  
Matthew L. Reinke ◽  
Ming Han
Keyword(s):  
Fiber Optic ◽  
Fabry Perot ◽  
High Finesse

Ultrasonic needle tracking with a high-finesse Fabry-Perot fiber optic hydrophone (Conference Presentation)

2019 ◽  
Author(s):  
Sunish J. Mathews ◽  
Sandy Mosse ◽  
Wenfeng Xia ◽  
Dzhoshkun I. Shakir ◽  
Yada Kunpalin ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Fabry Perot ◽  
High Finesse

High finesse interferometric hydrogen sensor based on fiber-optic Fabry-Perot cavity modulations

2012 ◽  
Author(s):  
Young Ho Kim ◽  
Chanki Lee ◽  
Ji Hey Kwon ◽  
Yong-Tak Lee ◽  
Byeong Ha Lee
Keyword(s):  
Fiber Optic ◽  
Hydrogen Sensor ◽  
Fabry Perot ◽  
High Finesse

scholarly journals Multichannel Fiber-Optic Silicon Fabry–Pérot Interferometric Bolometer System for Plasma Radiation Measurements

Photonics ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 344
Author(s):  
Nezam Uddin ◽  
Qiwen Sheng ◽  
Seungsup Lee ◽  
Matthew L. Reinke ◽  
David Donovan ◽  
...  
Keyword(s):  
High Speed ◽  
Fiber Optic ◽  
Light Emission ◽  
Single Channel ◽  
Single Mode ◽  
System Optimization ◽  
The Other ◽  
Plasma Radiation ◽  
Fabry Perot ◽  
High Finesse

A single-channel fiber-optic bolometer system based on a high-finesse silicon Fabry–Pérot interferometer (FPI) was previously reported, intended to measure plasma radiation from the magnetically confined fusion chamber. Recently, we developed a multichannel fiber-optic bolometer system with five bolometers multiplexed using a coarse wavelength division multiplexer (CWDM) and interrogated with a white-light system involving a superluminescent light-emission diode source and a high-speed spectrometer. One of the bolometers was used as the reference bolometer to compensate for the ambient temperature variations, and the other four bolometers were used for radiation measurement. The bolometers have a simple structure with a silicon pillar at the end of the single-mode fiber and a gold disk on the other side of the silicon pillar. They are also easy to fabricate without stringent requirements on the optical alignment. Analysis of the system optimization was performed to improve the noise performance and to mitigate the vibration effect that may present in the practical application. The system had a significantly enhanced measurement range compared to the previous high-finesse FPI bolometer system for measuring radiation. Test results performed in air using a 405 nm laser as the radiation source showed that the temperature resolution and the noise-equivalent power density of the sensing bolometers connected to each channel of the CWDM were, respectively, ~0.4 mK and ~0.1 W/m2, with a time constant of ~220 ms, which is comparable to the previous more complicated fiber-optic bolometer systems based on high-finesse FPIs that were interrogated using wavelength-scanning lasers.

scholarly journals Low-pressure and liquid level fiber‐optic sensor based on polymeric Fabry–Perot cavity

2021 ◽  
Vol 53 (5) ◽  
Author(s):  
D. Jauregui-Vazquez ◽  
M. E. Gutierrez-Rivera ◽  
D. F. Garcia-Mina ◽  
J. M. Sierra-Hernandez ◽  
E. Gallegos-Arellano ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Low Pressure ◽  
Fiber Optic Sensor ◽  
Liquid Level ◽  
Optic Sensor ◽  
Fabry Perot
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