6 June 1997 Sensor grating demodulation using a passively mode locked fiber laser
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A fiber Bragg grating sensor array is interrogated using a broad bandwidth passively mode locked fiber laser source. A novel demodulation scheme is demonstrated using highly dispersive fiber to convert the grating wavelength shift to a temporal shift in the arrival time of the reflected pulses. The mode locked fiber laser was then modified and operated in the square pulse regime, where 4 W, 10 ns pulses with bandwidths greater than 60 nm were used successfully to illuminate 2% fiber Bragg gratings.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Martin A. Putnam, Martin A. Putnam, Michael L. Dennis, Michael L. Dennis, Jin Ung Kang, Jin Ung Kang, Tsung-Ein Tsai, Tsung-Ein Tsai, Irl N. Duling, Irl N. Duling, E. Joseph Friebele, E. Joseph Friebele, } "Sensor grating demodulation using a passively mode locked fiber laser", Proc. SPIE 3042, Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation, (6 June 1997); doi: 10.1117/12.275754; https://doi.org/10.1117/12.275754

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