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19 April 2017 A luminescent detector for free-space optical communication (Conference Presentation)
Thibault Peyronel, Kevin J. Quirk, Tony S. C. Wang, Tobias G. Tiecke
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Proceedings Volume 10096, Free-Space Laser Communication and Atmospheric Propagation XXIX; 100960K (2017) https://doi.org/10.1117/12.2256190
Event: SPIE LASE, 2017, San Francisco, California, United States
Abstract
Free-space optical communication holds the promise of high-throughput wireless communication channels for long distances as well as for short-range indoor applications. To fully benefit from the high data rates enabled by optical carriers, the light needs to be efficiently collected onto a fast photodetector, which requires complex pointing and tracking systems. Here, we show that fluorescent materials can be used to increase the active area of a photodiode by orders of magnitude while maintaining its short response time and increasing its field of view. Using commercially available materials, we demonstrate a detector with an active area of 126  cm2 achieving data rates up to 2.1 Gbps at an eye-safe intensity. We demonstrate a detector geometry with omnidirectional sensitivity and discuss the need for new materials tailored for communication applications.
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Thibault Peyronel, Kevin J. Quirk, Tony S. C. Wang, and Tobias G. Tiecke "A luminescent detector for free-space optical communication (Conference Presentation)", Proc. SPIE 10096, Free-Space Laser Communication and Atmospheric Propagation XXIX, 100960K (19 April 2017); https://doi.org/10.1117/12.2256190
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KEYWORDS
Sensors
Free space optical communications
Active sensors
Fluorescent materials
Free space optics
Optical tracking
Photodetectors
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