Intensity-modulated optical fiber sensors based on chirped-fiber Bragg gratings

Xinyong Dong
2011 Photonic Sensors  
Intensity-modulated fiber Bragg grating (FBG) sensors, compared with normal wavelength-encoding FBG sensors, can reduce the cost of sensor system significantly by using cost-efficient optical power detection devices, instead of expensive wavelength measurement instruments. Chirped-FBG (CFBG) based intensity-modulated sensors show potential applications in various sensing areas due to their many advantages, including inherent independence of temperature, high measurement speed, and low cost, in
more » ... ddition to the merits of all fiber-optic sensors. This paper theoretically studies the sensing principle of CFBG-based intensity-modulated sensors and briefly reviews their recent progress in measurement of displacement, acceleration, and tilt angle.
doi:10.1007/s13320-011-0024-5 fatcat:oplbuhztvfaojokymcpvinkq5e