Electronics Letters · 1993 · 107 citations · 4 references
EngineeringElectrical EngineeringOpticsPhotonicsSensorsFiber OpticsOptical FibersOptical InstrumentationOptical SensingOptical SensorsTemperature SensorsBragg Grating SensorsFiber Bragg Grating SensorsFiber-optic SensingFiber-optic SensorsFrequency Shift KeyingOptical Fiber SensorsTunable FiltersTuning Range
A new technique for the interrogation of in-fibre Bragg grating sensors using an acousto-optic tunable filter (AOTF) is demonstrated. The scheme involves frequency shift keying (FSK) of the RF drive to the AOTF to track the wavelength shifts of a Bragg grating. Experimental results are presented for temperature measurement. This technique provides a frequency-agile system, capable of rapid, random access and very wide tuning range.
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Optical in-fibre grating high pressure sensor
M.G. Xu, L. Reekie, Y. T. Chow et al. · Electronics Letters · 1993 · 442 citations
S. E. Harris, R. W. Wallace · Journal of the Optical Society of America · 1969 · 323 citations