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Proceedings Paper

A luminescent detector for free-space optical communication (Conference Presentation)
Author(s): Thibault Peyronel; Kevin J. Quirk; Tony S. C. Wang; Tobias G. Tiecke
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Paper 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.

Paper Details

Date Published: 19 April 2017
PDF: 1 pages
Proc. SPIE 10096, Free-Space Laser Communication and Atmospheric Propagation XXIX, 100960K (19 April 2017); doi: 10.1117/12.2256190
Show Author Affiliations
Thibault Peyronel, Facebook Inc. (United States)
Kevin J. Quirk, Facebook Inc. (United States)
Tony S. C. Wang, Facebook Inc. (United States)
Tobias G. Tiecke, Facebook Inc. (United States)


Published in SPIE Proceedings Vol. 10096:
Free-Space Laser Communication and Atmospheric Propagation XXIX
Hamid Hemmati; Don M. Boroson, Editor(s)

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