Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9699593 | Optics and Lasers in Engineering | 2005 | 8 Pages |
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.
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Authors
Ketil Karstad, André Stefanov, Mark Wegmuller, Hugo Zbinden, Nicolas Gisin, Thierry Aellen, Mattias Beck, Jérôme Faist,