The Experts below are selected from a list of 17826 Experts worldwide ranked by ideXlab platform
Hai Xiao - One of the best experts on this subject based on the ideXlab platform.
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simultaneous measurement of temperature and pressure with cascaded extrinsic fabry perot Interferometer and intrinsic fabry perot Interferometer sensors
Optical Engineering, 2014Co-Authors: Yinan Zhang, Xinwei Lan, Lei Yuan, Jie Huang, Hai XiaoAbstract:This paper presents an approach for simultaneous measurement of temperature and pressure using miniaturized fiber inline sensors. The approach utilizes the cascaded optical fiber inline intrinsic Fabry–Perot Interferometer and extrinsic Fabry–Perot Interferometer as temperature and pressure sensing elements, respectively. A CO2 laser was used to create a loss between them to balance their reflection power levels. The multiplexed signals were demodulated using a Fast Fourier transform-based wavelength tracking method. Experimental results showed that the sensing system could measure temperature and pressure unambiguously in a pressure range of 0 to 6.895×105 Pa and a temperature range from 20°C to 700°C.
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Simultaneous measurement of temperature and pressure with cascaded extrinsic Fabry–Perot Interferometer and intrinsic Fabry–Perot Interferometer sensors
Optical Engineering, 2014Co-Authors: Yinan Zhang, Xinwei Lan, Lei Yuan, Jie Huang, Hai XiaoAbstract:This paper presents an approach for simultaneous measurement of temperature and pressure using miniaturized fiber inline sensors. The approach utilizes the cascaded optical fiber inline intrinsic Fabry–Perot Interferometer and extrinsic Fabry–Perot Interferometer as temperature and pressure sensing elements, respectively. A CO2 laser was used to create a loss between them to balance their reflection power levels. The multiplexed signals were demodulated using a Fast Fourier transform-based wavelength tracking method. Experimental results showed that the sensing system could measure temperature and pressure unambiguously in a pressure range of 0 to 6.895×105 Pa and a temperature range from 20°C to 700°C.
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a coaxial cable fabry perot Interferometer for sensing applications
Sensors, 2013Co-Authors: Jie Huang, Hai Xiao, Lei Hua, Jun Fan, Tao Wang, Ming LuoAbstract:This paper reports a novel coaxial cable Fabry-Perot Interferometer for sensing applications. The sensor is fabricated by drilling two holes half-way into a coaxial cable. The device physics was described. The temperature and strain responses of the sensor were tested. The measurement error was calculated and analyzed.
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miniaturized fiber inline fabry perot Interferometer fabricated with a femtosecond laser
Optics Letters, 2008Co-Authors: Tao Wei, Yukun Han, Hai-lung Tsai, Hai XiaoAbstract:We report a miniaturized inline Fabry-Perot Interferometer directly fabricated on a single-mode optical fiber with a femtosecond laser. The device had a loss of 16 dB and an interference visibility exceeding 14 dB. The device was tested and survived in high temperatures up to 1100°C. With an accessible cavity and all-glass structure, the new device is attractive for sensing applications in high-temperature harsh environments.
Zhengyong Li - One of the best experts on this subject based on the ideXlab platform.
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simultaneous measurement of pressure and temperature by employing fabry perot Interferometer based on pendant polymer droplet
Optics Express, 2015Co-Authors: Bing Sun, Junle Qu, Changrui Liao, Guolu Yin, Jun He, Jiangtao Zhou, Shen Liu, Jian Tang, Yiping Wang, Zhengyong LiAbstract:We investigated a novel and ultracompact polymer-capped Fabry-Perot Interferometer, which is based on a polymer capped on the endface of a single mode fiber (SMF). The proposed Fabry-Perot Interferometer has advantages of easy fabrication, low cost, and high sensitivity. The variation of the Fabry-Perot cavity length can be easily controlled by using the motors of a normal arc fusion splicer. Moreover, the enhanced mechanical strength of the Fabry-Perot Interferometer makes it suitable for high sensitivity pressure and temperature sensing in harsh environments. The proposed Interferometer exhibits a wavelength shift of the interference fringes that corresponds to a temperature sensitivity of 249 pm/°C and a pressure sensitivity of 1130 pm/MPa, respectively, around the wavelength of 1560 nm.
Paul B. Hays - One of the best experts on this subject based on the ideXlab platform.
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Multiplex Fabry–Perot Interferometer: I. Theory
Applied Optics, 1995Co-Authors: William B Cook, Hilary E. Snell, Paul B. HaysAbstract:The Multiplex Fabry–Perot Interferometer (MFPI) is a unique instrument, incorporating the wide spectral-bandwidth capability of the Michelson Interferometer with the small size and high resolution of the Fabry–Perot Interferometer. The MFPI is, structurally, a standard Fabry–Perot in which the scanning distance is allowed to be very large, of the order of centimeters. The signal recorded through this distance is Fourier transformed as would be the interferogram produced by a Michelson Interferometer. The result is a spectrum containing very high-resolution information over a moderately large optical bandwidth. The MFPI is much smaller than a Michelson producing the same resolution and covers a much broader bandwidth than a Fabry–Perot used in the usual fashion. We present a basic description of the operating theory for the MFPI in terms familiar to the Michelson spectroscopist.
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Multiplex Fabry-Perot Interferometer: II. Laboratory prototype.
Applied Optics, 1995Co-Authors: Hilary E. Snell, William B Cook, Paul B. HaysAbstract:The Multiplex Fabry-Perot Interferometer (MFPI) consists of a Fabry-Perot Interferometer in which the etalon plate separation is changed over a large optical distance. Fourier transformation of the resultant interferogram allows one to treat the multiple reflections within the etalon cavity in a manner analogous to an array of Michelson-type Interferometers. However, the scan distance required by the MFPI is much less than for a comparable Michelson. The design and construction of the MFPI are described. Solar absorption spectra measured with this instrument are compared with results from the FASCODE atmospheric model.
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Fourier Transform Fabry-Perot Interferometer
Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing, 1992Co-Authors: Hilary E. Snell, Paul B. HaysAbstract:We are developing a compact, rugged, high-resolution remote sensing instrument with wide spectral scanning capabilities. This relatively new type of instrument, which we have chosen to call the Fourier-Transform Fabry-Perot Interferometer (FT-FPI), is accomplished by mechanically scanning the etalon plates of a Fabry-Perot Interferometer (FPI) through a large optical distance while examining the concomitant signal with a Fourier-transform analysis technique similar to that employed by the Michelson Interferometer. The FT-FPI will be used initially as a ground-based instrument to study near-infrared atmospheric absorption lines of trace gases using the techniques of solar absorption spectroscopy. Future plans include modifications to allow for measurements of trace gases in the stratosphere using spectral lines at terahertz frequencies.
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Multiplex Fabry-Perot Interferometer
Earth and Atmospheric Remote Sensing, 1991Co-Authors: Hilary E. Snell, Paul B. HaysAbstract:A new type of Fabry-Perot Interferometer (FPI) which exploits the multiplex advantage is presented. The Multiplex Fabry-Perot Interferometer (MFPI) has one etalon plate that is fixed while the other is moved over a large optical distance thus producing an interferogram similar to that obtained with a Michelson Interferometer. The result is an instrument which has the ability to examine large spectral regions at high resolution using the inversion techniques normally applied to a Michelson Interferometer while retaining the small size of an FPI. The MFPI is a compact rugged high resolution instrument that will be useful for the remote sensing of minor species.
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Multiplex Fabry–Perot Interferometer
Applied Optics, 1991Co-Authors: Paul B. Hays, Hilary E. SnellAbstract:The Fabry-Perot Interferometer (FPI) traditionally has been used to examine either small spectral ranges or relatively imple spectra. Recently, however, studies have shown that the FPI can be competitive with the Michelson Interferometer ver extended spectral ranges. This paper describes a relatively new FPI technique in which one of the etalon plates is moved over a large optical distance while the other remains fixed, thus exploiting the multiplex advantage of the instrument. we have chosen to call this instrument the multiplex Fabry-Perot Interferometer (MFPI). It is shown that this technique could be useful for the remote sensing of minor atmospheric species because the MFPI, like a Michelson Interferometer, has the ability to examine large spectral regions at high resolution but retains the small size of the FPI.
Bing Sun - One of the best experts on this subject based on the ideXlab platform.
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simultaneous measurement of pressure and temperature by employing fabry perot Interferometer based on pendant polymer droplet
Optics Express, 2015Co-Authors: Bing Sun, Junle Qu, Changrui Liao, Guolu Yin, Jun He, Jiangtao Zhou, Shen Liu, Jian Tang, Yiping Wang, Zhengyong LiAbstract:We investigated a novel and ultracompact polymer-capped Fabry-Perot Interferometer, which is based on a polymer capped on the endface of a single mode fiber (SMF). The proposed Fabry-Perot Interferometer has advantages of easy fabrication, low cost, and high sensitivity. The variation of the Fabry-Perot cavity length can be easily controlled by using the motors of a normal arc fusion splicer. Moreover, the enhanced mechanical strength of the Fabry-Perot Interferometer makes it suitable for high sensitivity pressure and temperature sensing in harsh environments. The proposed Interferometer exhibits a wavelength shift of the interference fringes that corresponds to a temperature sensitivity of 249 pm/°C and a pressure sensitivity of 1130 pm/MPa, respectively, around the wavelength of 1560 nm.
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Temperature-insensitive strain sensor based on in-line Fabry-Perot Interferometer
23rd International Conference on Optical Fibre Sensors, 2014Co-Authors: Yiping Wang, Changrui Liao, Guolu Yin, Shen Liu, Bing Sun, Qiao Wang, Jing Zhao, Jian TangAbstract:We demonstrated a high-sensitivity strain sensor based on an in-line Fabry-Perot Interferometer with an air cavity whose was created by splicing together two sections of standard single mode fibers. The sensitivity of this strain sensor was enhanced to 6.02 pm/μe by improving the cavity length of the Fabry-Perot Interferometer by means of repeating arc discharges for reshaping the air cavity. Moreover, such a strain sensor has a very low temperature sensitivity of 1.06 pm/°C, which reduces the cross-sensitivity problem between tensile strain and temperature.
Jie Huang - One of the best experts on this subject based on the ideXlab platform.
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simultaneous measurement of temperature and pressure with cascaded extrinsic fabry perot Interferometer and intrinsic fabry perot Interferometer sensors
Optical Engineering, 2014Co-Authors: Yinan Zhang, Xinwei Lan, Lei Yuan, Jie Huang, Hai XiaoAbstract:This paper presents an approach for simultaneous measurement of temperature and pressure using miniaturized fiber inline sensors. The approach utilizes the cascaded optical fiber inline intrinsic Fabry–Perot Interferometer and extrinsic Fabry–Perot Interferometer as temperature and pressure sensing elements, respectively. A CO2 laser was used to create a loss between them to balance their reflection power levels. The multiplexed signals were demodulated using a Fast Fourier transform-based wavelength tracking method. Experimental results showed that the sensing system could measure temperature and pressure unambiguously in a pressure range of 0 to 6.895×105 Pa and a temperature range from 20°C to 700°C.
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Simultaneous measurement of temperature and pressure with cascaded extrinsic Fabry–Perot Interferometer and intrinsic Fabry–Perot Interferometer sensors
Optical Engineering, 2014Co-Authors: Yinan Zhang, Xinwei Lan, Lei Yuan, Jie Huang, Hai XiaoAbstract:This paper presents an approach for simultaneous measurement of temperature and pressure using miniaturized fiber inline sensors. The approach utilizes the cascaded optical fiber inline intrinsic Fabry–Perot Interferometer and extrinsic Fabry–Perot Interferometer as temperature and pressure sensing elements, respectively. A CO2 laser was used to create a loss between them to balance their reflection power levels. The multiplexed signals were demodulated using a Fast Fourier transform-based wavelength tracking method. Experimental results showed that the sensing system could measure temperature and pressure unambiguously in a pressure range of 0 to 6.895×105 Pa and a temperature range from 20°C to 700°C.
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a coaxial cable fabry perot Interferometer for sensing applications
Sensors, 2013Co-Authors: Jie Huang, Hai Xiao, Lei Hua, Jun Fan, Tao Wang, Ming LuoAbstract:This paper reports a novel coaxial cable Fabry-Perot Interferometer for sensing applications. The sensor is fabricated by drilling two holes half-way into a coaxial cable. The device physics was described. The temperature and strain responses of the sensor were tested. The measurement error was calculated and analyzed.
