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Evanescent-Field Intra-Cavity Sensing with a Dual-Wavelength Distributed-Feedback Laser

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We demonstrate an integrated optical particle sensor based on a dual-wavelength distributed-feedback waveguide laser. Micro-particles were detected down to a size of 1 μm, which represents the typical size of many fungal and bacterial pathogens.

© 2012 Optical Society of America

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