Experimental investigation on optical spectral deformation of embedded FBG sensors

Xiaoxing Zhang; Jean-Joseph Max; Xuenian Jiang; Lucy Yu; Hassan Kassi

doi:10.1117/12.700807

9 February 2007 Experimental investigation on optical spectral deformation of embedded FBG sensors

Xiaoxing Zhang, Jean-Joseph Max, Xuenian Jiang, Lucy Yu, Hassan Kassi

Proceedings Volume 6478, Photonics Packaging, Integration, and Interconnects VII; 647808 (2007) https://doi.org/10.1117/12.700807
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

With the rapid development of Fiber Bragg Grating (FBG) sensing during recent years, FBG sensors are used in many fields; applications involving impact and vibration measurement require a high-speed interrogator. We have developed and prototyped a high-speed FBG interrogation system with a sampling rate up to 5 kHz. We show that FBG sensor optical spectral deformation may affect the performance of interrogators, such deformation can be introduced from non-uniform strain field or during FBG sensor packaging. This paper reports the experimental investigation of the impacts of the FBG spectral deformation on the interrogator accuracy, sensors with different optical spectral shapes are tested and analyzed, furthermore, we show how this high-speed interrogator is more tolerant to such deformation than peak tracking instruments.

Citation Download Citation

Xiaoxing Zhang, Jean-Joseph Max, Xuenian Jiang, Lucy Yu, and Hassan Kassi "Experimental investigation on optical spectral deformation of embedded FBG sensors", Proc. SPIE 6478, Photonics Packaging, Integration, and Interconnects VII, 647808 (9 February 2007); https://doi.org/10.1117/12.700807

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