23 April 2017 Performance characteristics of continuously grated multicore sensor fiber
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236I (2017) https://doi.org/10.1117/12.2263481
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
We describe the fabrication and performance of a continuously grated twisted multicore fiber sensor array. The grated fiber sensor comprises nearly continuous Bragg gratings along its entire length. The gratings are inscribed over lengths in excess of 10m in fibers with UV transparent coating using a flexible and scalable reel to reel processing system. The arrays are tested using optical frequency domain reflectometry (OFDR). We report on automated analysis routines applied to these OFDR measurements that allow for characterization of 100s of individual grating exposures that make up a continuously grated fiber length. We also report on the spectral loss of the continuously grated fiber, showing that it is suitable for applications with sensors in excess of 100m. Finally, we report on the fiber sensing characteristics by performing measurements of fiber bend using a fiber shape reconstruction algorithm on OFDR traces obtained from four of the fiber cores.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul S. Westbrook, Paul S. Westbrook, Tristan Kremp, Tristan Kremp, Kenneth S. Feder, Kenneth S. Feder, Wing Ko, Wing Ko, Eric M. Monberg, Eric M. Monberg, Hongchao Wu, Hongchao Wu, Debra A. Simoff, Debra A. Simoff, Scott Shenk, Scott Shenk, Roy M. Ortiz, Roy M. Ortiz, } "Performance characteristics of continuously grated multicore sensor fiber", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236I (23 April 2017); doi: 10.1117/12.2263481; https://doi.org/10.1117/12.2263481
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