Interrogation systems for slab coupled optical fiber sensors

Jon Noren; Richard Selfridge; Stephen Schultz

doi:10.1117/12.880912

20 April 2011 Interrogation systems for slab coupled optical fiber sensors

Jon Noren, Richard Selfridge, Stephen Schultz

Proceedings Volume 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011; 79820R (2011) https://doi.org/10.1117/12.880912
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

This paper provides a description of electric field sensing using the slab coupled optical fiber sensor (SCOS) with an emphasis on the detection electronics. This analysis includes estimated signal strength and the main noise sources. With all noise eliminated except for the shot noise in the photodetector, thermal noise in the terminating resistor, and the thermal noise in the low noise amplifier the theoretical sensitivity is calculated to be 0.85 V/m Hz^0.5. The signal is measured using an electrical spectrum analyzer and found to have a sensitivity of 1.34 V/m Hz^0.5.

Citation Download Citation

Jon Noren, Richard Selfridge, and Stephen Schultz "Interrogation systems for slab coupled optical fiber sensors", Proc. SPIE 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011, 79820R (20 April 2011); https://doi.org/10.1117/12.880912

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