Performance of digital incoherent OFDR and prospects for optical fiber sensing applications

Sascha Liehr; Nils Nöther; Milan Steffen; Oriol Gili; Katerina Krebber

doi:10.1117/12.2059639

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2 June 2014 Performance of digital incoherent OFDR and prospects for optical fiber sensing applications

Sascha Liehr, Nils Nöther, Milan Steffen, Oriol Gili, Katerina Krebber

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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915737 (2014) https://doi.org/10.1117/12.2059639
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We propose a digital implementation of the incoherent optical frequency domain reflectometry (I-OFDR) technique for precise backscatter measurement and optical fiber sensing applications. Specific performance parameters of the I-OFDR are discussed and compared to an analog vector network analyzer-based I-OFDR system. Improved sensitivity, dynamic range and signal stability of the digital I-OFDR is presented and demonstrated by means of quasi-distributed length change measurement.

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Sascha Liehr, Nils Nöther, Milan Steffen, Oriol Gili, and Katerina Krebber "Performance of digital incoherent OFDR and prospects for optical fiber sensing applications", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915737 (2 June 2014); https://doi.org/10.1117/12.2059639

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