Fiber Bragg grating sensor interrogation system using a CCD side detection method with Superimposed blazed gratings

Zhou, Kaiming, Simpson, A.G., Chen, Xianfeng F., Zhang, Lin and Bennion, Ian (2004). Fiber Bragg grating sensor interrogation system using a CCD side detection method with Superimposed blazed gratings. IEEE photonics technology letters, 16 (6), pp. 1549-1551.

Abstract

We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4° and 8° were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendable to 70 nm.

Uncontrolled Keywords: Bragg gratings, charge coupled devices, dynamic range, fiber gratings, optical fiber devices, optical fiber sensors, sensor arrays, sensor systems, spectroscopy, temperature sensors, CCD image sensors, fibre optic sensors, optical communication equipment, optical fabrication, spectrometers, strain sensors, wavelength division multiplexing, CCD side detection method, coated charged-coupled device array, fabrication, fiber Bragg grating sensor, germanosilicate fiber, grating-based spectrometer, strain monitoring, superimposed blazed gratings, ultraviolet inscription, wavelength-division-multiplexing sensor array
Published Date: 2004-05
Authors: Zhou, Kaiming
Simpson, A.G.
Chen, Xianfeng F.
Zhang, Lin
Bennion, Ian

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