Multiplexing architectures for fiber laser strain sensors employing intracore Bragg gratings

Shawn E. Karr; A. Tino Alavie; Shang Yuan Huang; Andreas Othonos; Raymond M. Measures

doi:10.1117/12.166858

7 February 1994 Multiplexing architectures for fiber laser strain sensors employing intracore Bragg gratings

Shawn E. Karr, A. Tino Alavie, Shang Yuan Huang, Andreas Othonos, Raymond M. Measures

Proceedings Volume 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation; (1994) https://doi.org/10.1117/12.166858
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

An area of concern for erbium doped Fiber Laser Sensors (FLS) has been the issue of `cost per sensor'. To address this issue and promote the FLS as a viable sensor system, techniques for multiplexing intracore Bragg gratings in serial and parallel fiber laser architectures are presented. These configurations allow multiple lasing lines to be supported using a single 980 nm pump. The architectures are examined in terms of power requirements, complexity, and strain sensitivity. Simultaneous tracking of multiple sensors subject to either temperature or strain variations has been achieved and the data is presented. Preliminary results indicate a low level of crosstalk between sensors.

Citation Download Citation

Shawn E. Karr, A. Tino Alavie, Shang Yuan Huang, Andreas Othonos, and Raymond M. Measures "Multiplexing architectures for fiber laser strain sensors employing intracore Bragg gratings", Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); https://doi.org/10.1117/12.166858

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