Dakin, J.P., Ecke, W., Rothardt, M., Schauer, J., Usbeck, K. and Willsch, R.
New multiplexing scheme for monitoring fiber optic Bragg grating sensors in the coherence domain.
Proceedings of Optical Fiber Sensors.
12th International Conference on Optical Fiber Sensors
Optical Society of America.
A new multiplexing scheme for monitoring fiber optic Bragg gratings in the coherence domain has been developed. Grating pairs with different grating distances are distributed along a fiber line, and interference between their reflections is monitored with a scanning Michelson interferometer. The Bragg wavelength of the individual sensor elements is determined from the interference signal frequency
Actions (login required)