Microwave Interrogated Sapphire Fiber Michelson Interferometer for High Temperature Sensing

We present, for the first time to our knowledge, a microwave interrogated sapphire fiber Michelson interferometer for high temperature sensing. By sending a microwave-modulated optical wave to a sapphire fiber Michelson interferometer, a high quality interference spectrum was reconstructed in the microwave domain with a fringe visibility exceeding 40 dB. The sensor showed good sensitivity, reversibility and stability in the temperature range of 100 °C-1400 °C. The proposed sensing configuration has a number of unique advantages including low dependence to the multimodal influences, high signal quality, relieved fabrication precision, and insensitivity to the background blackbody radiation when used in high temperature.

[1]  Thomas E. Blue,et al.  In Situ Thermally Induced Attenuation in Sapphire Optical Fibers Heated to 1400°C , 2015 .

[2]  Limin Tong,et al.  SAPPHIRE-FIBER THERMOMETER RANGING FROM 20 TO 1800 C , 1999 .

[3]  J. Harrington,et al.  Optical properties of single-crystal sapphire fibers. , 1997, Applied optics.

[4]  Jie Huang,et al.  Optical carrier-based microwave interferometers for sensing application , 2014, Sensing Technologies + Applications.

[5]  R. Claus,et al.  Sapphire-fiber-based intrinsic Fabry-Perot interferometer. , 1992, Optics letters.

[6]  José Capmany,et al.  Microwave photonics combines two worlds , 2007 .

[7]  B. Ortega,et al.  A tutorial on microwave photonic filters , 2006, Journal of Lightwave Technology.

[8]  José Mora,et al.  Radio-frequency low-coherence interferometry. , 2014, Optics letters.

[9]  Jie Huang,et al.  Spatially continuous distributed fiber optic sensing using optical carrier based microwave interferometry. , 2014, Optics express.

[10]  Thomas G. Giallorenzi,et al.  Optical fiber sensor technology , 1982, 1985 International Electron Devices Meeting.

[11]  Anbo Wang,et al.  Single-crystal sapphire fiber-based strain sensor for high-temperature applications , 2003 .

[12]  Zishu Cao,et al.  Synthesis and characterization of spinel MgAl2O4 thin film as sapphire optical fiber cladding for high temperature applications , 2013 .

[13]  Anbo Wang,et al.  Sapphire-fiber-based white-light interferometric sensor for high-temperature measurements. , 2005, Optics letters.

[14]  R. Dils.  High‐temperature optical fiber thermometer , 1983 .

[15]  P C Beard,et al.  Analysis of a low-finesse Fabry-Perot sensing interferometer illuminated by a multimode optical fiber. , 1999, Applied optics.

[16]  Hartmut Bartelt,et al.  Inscription of first-order sapphire Bragg gratings using 400 nm femtosecond laser radiation. , 2013, Optics express.

[17]  Limin Tong,et al.  Performance stability of the sapphire fiber and cladding under high temperature , 1999, Optics East.

[18]  James A. Harrington,et al.  Optical properties of clad and unclad sapphire fiber , 1994, Photonics West - Lasers and Applications in Science and Engineering.

[19]  S. Mihailov,et al.  Sapphire fiber Bragg grating sensor made using femtosecond laser radiation for ultrahigh temperature applications , 2004, IEEE Photonics Technology Letters.

[20]  Stephen J. Mihailov,et al.  High-temperature multiparameter sensor based on sapphire fiber Bragg gratings. , 2010, Optics letters.

[21]  K. Williams,et al.  Microwave photonics , 2002 .