Infrared Data Link using a Multiple Quantum Well Modulating Retro-reflector on a Small Rotary-Wing UAV
Abstract
This paper describes a recent demonstration of an optical data link between a small rotary-wing unmanned airborne vehicle (UAV) and a ground based laser interrogator using the NRL multiple quantum well modulating retro-reflector (MRR). MRR systems couple an optical retro-reflector, such as a corner-cube, and an electro-optic shutter to allow two-way optical communications using a laser, telescope and pointertracker on only one platform. The NRL MRR uses a semiconductor based multiple quantum well (MQW) shutter capable of modulation rates above 1 Mbps. The MQW modulating retro-reflector has the advantages of being compact, lightweight, and very low power. Up to an order of magnitude in onboard power can be saved using a small array of these devices instead of the RF equivalent. In the demonstration a 400 Kbps optical link to a flying UAV at a range of 100-200 feet was shown. The device itself is capable of over 6 Mbps.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2007
- Accession Number
- ADA461576
Entities
People
- Chris Bovais
- D. Scott Katzer
- G. Charmaine Gilbreath
- H. R. Burris
- Ilene Sokolsky
- John Vasques
- K. Ikossi-ansatasiou
- Kerry Cochrell
- Kim Goins
- Mena Ferraro
- Michael Vilcheck
- Rita Mahon
- Robin Barbehenn
- Timothy Meehan
- Williams S. Rabinovich
Organizations
- United States Naval Research Laboratory