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2007 IEEE Sensors
We present a class of compact, monolithic, photonic sensors consisting of multiple section edge emitting lasers with functionalized lateral surface coatings for low level detection of chemical or biological agents. Specifically, we discuss 8μm x 250μm Pd-coated H 2 sensors and configurations to reduce the minimum detection limit from 138ppm for passive sensors to 1ppm for active sensors. Compared with conventional optical H 2 sensors that use fiber gratings, surface plasmon resonances, ordoi:10.1109/icsens.2007.4388619 fatcat:kkfvgvgr2zamvoqseyyu47gxem