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Proceedings Paper

Performance of the optical communication adaptive optics testbed
Author(s): Jennifer Roberts; Mitchell Troy; Malcolm Wright; Stephen Guiwits; Siddarayappa Bikkannavar; Gary Brack; Vachik Garkanian; Dean Palmer; Benjamin Platt; Tuan Truong; Kent Wallace; Keith Wilson
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Paper Abstract

We describe the current performance of an adaptive optics testbed for free space optical communication. This adaptive optics system allows for simulation of night and day-time observing on a 1 meter telescope with a 97 actuator deformable mirror. In lab-generated seeing of 2.1 arcseconds (at 0.5μm) the system achieves a Strehl of 21% at 1.064μm (210nm RMS wavefront). Predictions of the system's performance based on real-time wavefront sensor telemetry data and analytical equations are shown to agree with the observed image performance. We present experimentally measured gains in communications performance of 2-4dB in the received signal power when AO correction is applied in the presence of high background and turbulence at an uncoded bit error rate of 0.1. The data source was a 100Mbps on-offkeyed signal detected with an IR-enhanced avalanche photodiode detector as the receiver.

Paper Details

Date Published: 12 September 2005
PDF: 12 pages
Proc. SPIE 5892, Free-Space Laser Communications V, 589212 (12 September 2005); doi: 10.1117/12.618072
Show Author Affiliations
Jennifer Roberts, Jet Propulsion Lab. (United States)
Mitchell Troy, Jet Propulsion Lab. (United States)
Malcolm Wright, Jet Propulsion Lab. (United States)
Stephen Guiwits, Jet Propulsion Lab. (United States)
Siddarayappa Bikkannavar, Jet Propulsion Lab. (United States)
Gary Brack, Jet Propulsion Lab. (United States)
Vachik Garkanian, Jet Propulsion Lab. (United States)
Dean Palmer, Jet Propulsion Lab. (United States)
Benjamin Platt, Jet Propulsion Lab. (United States)
Tuan Truong, Jet Propulsion Lab. (United States)
Kent Wallace, Jet Propulsion Lab. (United States)
Keith Wilson, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 5892:
Free-Space Laser Communications V
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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