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Title

Detection of mid-IR radiation by sum frequency generation for free space optical communication

Authors
Aellen, Thierry
Beck, Mattias
Faist, Jérôme
Published in Optics and Lasers in Engineering. 2005, vol. 43, no. 3-5, p. 537-544
Abstract We present an experiment where mid-infrared radiation is detected indirectly via the second-order non-linear process of sum frequency generation. The mid-infrared sources used for the experiment are quantum cascade lasers, and we use a pump wavelength that yields an up-converted wavelength within the detection window of Silicon avalanche photo diodes. Compared with direct detection using state-of-the-art mid-infrared semiconductor detectors, the detection scheme we propose in this paper has the advantages of greater bandwidth and lower noise equivalent power.
Keywords Sum frequencygenerationMid-infrared detectionQuantum cascade laser
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KARSTAD, Ketil et al. Detection of mid-IR radiation by sum frequency generation for free space optical communication. In: Optics and Lasers in Engineering, 2005, vol. 43, n° 3-5, p. 537-544. https://archive-ouverte.unige.ch/unige:36729

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Deposited on : 2014-05-20

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