Light Emitting Diodes for intersatellite links - LEDs4ISLs
A variety of work has been done on using LEDs for short-range intersatellite links:
Utility of Light Emitting Diodes for Inter-Satellite Communication in Multi-Satellite Networks, D. N. Amanor, W. W. Edmonson and F. Afghah, IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE), Aachen, Germany, September 2016. (DOI 10.1109/WiSEE.2016.7877315).
- Visible Light Communication System for Intersatellite Communication of Small Satellites, D. N. Amanor, W. W. Edmonson and A. I. Anyanhun, Small Satellites Systems and Services - 4S Symposium, Valetta, Malta, June 2016.
- Building and Evaluating COTS Based Optical Interlinks for Nanosatellites, T. Idriss and M. Bayoumi, 24th IEEE Conference on Computer Communication and Networks (ICCCN), Las Vegas, Nevada, August 2015 (DOI 10.1109/ICCCN.2015.7288381).
- Intersatellite Links, L. Wood, United States Patent Application 20100279604, filed 4 May 2009, application published 4 November 2010. Rejected, suggesting that the basic idea is unencumbered and unpatentable.
- Using Light-Emitting Diodes for intersatellite links, L. Wood, W. D. Ivancic and K.-P. Dörpelkus, IEEE Aerospace Conference, Big Sky, Montana, March 2010 (DOI 10.1109/AERO.2010.5446711).
Other work discussing exploiting Fraunhofer lines as relatively noise-free channels for in-space links includes:
ShindaiSat was a demonstration of LED communications to ground.