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Sensitivity Limits for Near- Infrared Gas Sensing with Suspended-core PCFs directly coupled with VCSELs

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Abstract

We demonstrate direct-coupling of vertical-cavity surface-emitting lasers to suspended-core PCFs and present characterization of this gas sensor. The spectral background and power-overlap from 763 – 2004 nm are measured to determine the quantitative detection sensitivity.

© 2010 Optical Society of America

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