Advanced strategies for spatially resolved analyte mapping with distributed fiber optic sensors for environmental and process applications

Radislav A. Potyrailo; Gary M. Hieftje

doi:10.1117/12.339044

10 February 1999 Advanced strategies for spatially resolved analyte mapping with distributed fiber optic sensors for environmental and process applications

Radislav A. Potyrailo, Gary M. Hieftje

Author Affiliations +

Proceedings Volume 3534, Environmental Monitoring and Remediation Technologies; (1999) https://doi.org/10.1117/12.339044
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

The evolution of approaches to simultaneous real-time acquisition of analytical data from multiple locations is analyzed. Greatest emphasis is placed on optical time-of- flight (OTOF) chemical detection when the measurements are taken along the length of a single continuous extended-length 'distributed' sensing element. The attractive features of such distributed sensing element fabricated by immobilization of chemically sensitive reagents directly into the original cladding of a conventional plastic-clad silica (PCS) optical fiber are demonstrated. Several signal generation and processing methods are devised to address the requirements for spatially resolved chemical sensing. These requirements include high signal levels, a fairly uniform detection limit over the length of the sensing fiber, measurements with dynamically quenched fluorophores, and high spatial resolution. Applications of OTOF distributed chemical sensors for spatially resolved analyte mapping for environmental and process applications are discussed.

Citation Download Citation

Radislav A. Potyrailo and Gary M. Hieftje "Advanced strategies for spatially resolved analyte mapping with distributed fiber optic sensors for environmental and process applications", Proc. SPIE 3534, Environmental Monitoring and Remediation Technologies, (10 February 1999); https://doi.org/10.1117/12.339044

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