Sapphire-fiber-based white-light interferometric sensor for high-temperature measurements

Zhu, Yizheng; Huang, Zhengyu; Shen, Fengyu; Wang, Anbo

doi:10.1364/ol.30.000711

Cited by 125 publications

(43 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Later, spectrum-based sensing methods were studied in search of higher accuracy. Several sensing schemes have been proposed and demonstrated in the past few decades to fabricate temperature sensors, including wafer- [3] and air gap-based [4,5] Fabry-Perot interferometers (FPIs) and fiber Bragg gratings [6]. Most reported spectrum-based sensing schemes rely on sensors that must be individually fabricated and tested, making them less viable for mass production.…”

Section: Introductionmentioning

confidence: 99%

ZrO₂ thin-film-based sapphire fiber temperature sensor

et al. 2012

Self Cite

View full text Add to dashboard Cite

A submicrometer-thick zirconium dioxide film was deposited on the tip of a polished C-plane sapphire fiber to fabricate a temperature sensor that can work to an extended temperature range. Zirconium dioxide was selected as the thin film material to fabricate the temperature sensor because it has relatively close thermal expansion to that of sapphire, but more importantly it does not react appreciably with sapphire up to 1800°C. In order to study the properties of the deposited thin film, ZrO 2 was also deposited on C-plane sapphire substrates and characterized by x-ray diffraction for phase analysis as well as by atomic force microscopy for analysis of surface morphology. Using low-coherence optical interferometry, the fabricated thin-film-based sapphire fiber sensor was tested in the lab up to 1200°C and calibrated from 200°to 1000°C. The temperature resolution is determined to be 5.8°C when using an Ocean Optics USB4000 spectrometer to detect the reflection spectra from the ZrO 2 thin-film temperature sensor.

show abstract

Section: Introductionmentioning

confidence: 99%

ZrO₂ thin-film-based sapphire fiber temperature sensor

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…8(a), the color map of the PDF of the estimated phase is plotted as a function of OPD. The data were acquired experimentally from a sapphirewafer-based EFPI temperature sensor [7]. During the phase calibration, a sufficient amount of data was recorded to capture the OPD − φ 0 relationship (comparing with Fig.…”

Section: Reducing the Probability Of Jump In Type II Estimationsmentioning

confidence: 99%

“…In the regime of "low finesse," the reflectances of the cavity mirrors are low and multireflections are neglected. Such low-finesse FP sensors are more cost-effective, and most importantly, they exhibit outstanding robustness in harsh environments [7]. For such sensors Eq.…”

Section: Introductionmentioning

confidence: 99%

Signal processing of white-light interferometric low-finesse fiber-optic Fabry–Perot sensors

Wang

2013

Appl. Opt.

Self Cite

View full text Add to dashboard Cite

Signal processing for low-finesse fiber-optic Fabry-Perot sensors based on white-light interferometry is investigated. The problem is demonstrated as analogous to the parameter estimation of a noisy, real, discrete harmonic of finite length. The Cramer-Rao bounds for the estimators are given, and three algorithms are evaluated and proven to approach the bounds. A long-standing problem with these types of sensors is the unpredictable jumps in the phase estimation. Emphasis is made on the property and mechanism of the "total phase" estimator in reducing the estimation error, and a varying phase term in the total phase is identified to be responsible for the unwanted demodulation jumps. The theories are verified by simulation and experiment. A solution to reducing the probability of jump is demonstrated.

show abstract

“…This is of great importance to any white-light interferometry (WLI) [18] based sensor signal processing method.…”

Section: The Spectrum Of Gi-mmf Based Ifpimentioning

confidence: 99%

Multiplexed Optical Fiber Sensors for Coal Fired Advanced Fossil Energy Systems

Wang¹,

Pickrell²

2012

Self Cite

View full text Add to dashboard Cite

This three-year project started on October 1, 2008. In the project, a fiber optical sensing system based on intrinsic Fabry-Perot Interferometer (IFPI) was developed for strain and temperature measurements for Ultra Supercritical boiler condition assessment. Investigations were focused on sensor design, fabrication, attachment techniques and novel materials for high temperature and strain measurements.At the start of the project, the technical requirements for the sensing technology were determined together with our industrial partner Alstom Power. As is demonstrated in Chapter 4, all the technical requirements are successfully met. The success of the technology extended beyond laboratory test; its capability was further validated through the field test at DOE NETL, in which the sensors yielded distributed temperature mapping of a testing coupon installed in the turbine test rig. The measurement results agreed well with prior results generated with thermocouples.In this project, significant improvements were made to the IFPI sensor technology by splicing condition optimization, transmission loss reduction, sensor signal demodulation and sensor system design. These innovations have yielded three journal publications and two conference papers.

show abstract

Sapphire-fiber-based white-light interferometric sensor for high-temperature measurements

Cited by 125 publications

References 8 publications

ZrO₂ thin-film-based sapphire fiber temperature sensor

ZrO₂ thin-film-based sapphire fiber temperature sensor

Signal processing of white-light interferometric low-finesse fiber-optic Fabry–Perot sensors

Multiplexed Optical Fiber Sensors for Coal Fired Advanced Fossil Energy Systems

Contact Info

Product

Resources

About

Sapphire-fiber-based white-light interferometric sensor for high-temperature measurements

Cited by 125 publications

References 8 publications

ZrO2 thin-film-based sapphire fiber temperature sensor

ZrO2 thin-film-based sapphire fiber temperature sensor

Signal processing of white-light interferometric low-finesse fiber-optic Fabry–Perot sensors

Multiplexed Optical Fiber Sensors for Coal Fired Advanced Fossil Energy Systems

Contact Info

Product

Resources

About

ZrO₂ thin-film-based sapphire fiber temperature sensor

ZrO₂ thin-film-based sapphire fiber temperature sensor