<div class="csl-bib-body">
<div class="csl-entry">Didier, P., Knötig, H. M., Spitz, O., Cerutti, L., Lardschneider, A., Awwad, E., Diaz-Thomas, D., Baranov, A., Weih, R., Koeth, J., Schwarz, B., & Grillot, F. (2023). Interband cascade technology for energy-efficient mid-infrared free-space communication. <i>Photonics Research</i>, <i>11</i>(4), 582–590. https://doi.org/10.1364/PRJ.478776</div>
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dc.identifier.issn
2327-9125
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/193279
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dc.description.abstract
Space-to-ground high-speed transmission is of utmost importance for the development of a worldwide broadband network. Mid-infrared wavelengths offer numerous advantages for building such a system, spanning from low atmospheric attenuation to eye-safe operation and resistance to inclement weather conditions. We demonstrate a full interband cascade system for high-speed transmission around a wavelength of 4.18 μm. The low-power consumption of both the laser and the detector in combination with a large modulation bandwidth and sufficient output power makes this technology ideal for a free-space optical communication application. Our proof-of-concept experiment employs a radio-frequency optimized Fabry-Perot interband cascade laser and an interband cascade infrared photodetector based on a type-II InAs/GaSb superlattice. The bandwidth of the system is evaluated to be around 1.5 GHz. It allows us to achieve data rates of 12 Gbit/s with an on-off keying scheme and 14 Gbit/s with a 4-level pulse amplitude modulation scheme. The quality of the transmission is enhanced by conventional pre- and post-processing in order to be compatible with standard error-code correction.
en
dc.language.iso
en
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dc.publisher
CHINESE LASER PRESS
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dc.relation.ispartof
Photonics Research
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
interband cascade technology
en
dc.subject
mid-infrared
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dc.subject
energy-efficient
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dc.title
Interband cascade technology for energy-efficient mid-infrared free-space communication