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Noise properties in multi-heterodyne spectrometers based on quantum- and interband-cascade lasers

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Abstract

The noise properties of two multi-heterodyne spectrometers based on multi-mode semiconductor lasers (QCLs and ICLs) are investigated to determine their detection performance limitations. Both laser technologies provide well-defined multi-heterodyne beat-note structures suitable for spectroscopic measurements.

© 2015 Optical Society of America

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