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Single-fiber grid for improved spatial resolution in distributed fiber optic sensor

C. Pandian, M. Kasinathan, S. Sosamma, C. Babu Rao, T. Jayakumar, N. Murali, and Baldev Raj

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Abstract

The spatial resolution of an optical-fiber-based Raman distributed temperature sensor is limited by the pulse width of the laser used. We discuss a methodology of increasing spatial resolution by using a single-fiber grid. Spatial resolution improvement of up to 10 times is demonstrated.

© 2010 Optical Society of America

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