Journal of the European Optical Society - Rapid publications, Vol 4 (2009)

The development of a compact free spectral range semiconductor laser biosensor

J. Coote, S. Reddy, S. J. Sweeney


We present a new evanescent field sensor based on InP/InGaAsP ridge waveguide semiconductor lasers. The laser itself forms an integrated sensing chip containing both a light source and a waveguide. Simple modifications are made to readily available devices, meaning that the chips could form very compact and cost effective sensors.

© The Authors. All rights reserved. [DOI: 10.2971/jeos.2009.09013]

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