Precision beam pointing for laser communication system using a CCD-based tracker

Chien-Chung Chen; Homayoon Ansari; James R. Lesh

doi:10.1117/12.157075

23 September 1993 Precision beam pointing for laser communication system using a CCD-based tracker

Chien-Chung Chen, Homayoon Ansari, James R. Lesh

Author Affiliations +

Proceedings Volume 1949, Space Guidance, Control, and Tracking; (1993) https://doi.org/10.1117/12.157075
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Spatial acquisition and precision beam pointing functions are critical to spaceborne laser communication systems. A recent system study indicated that a single high bandwidth CCD detector can be used to perform both spatial acquisition and tracking functions. Compared to previous lasercom hardware design, the array tracking concept offers reduced system complexity by reducing the number of optical elements in the design. Specifically, the design requires only one detector and one beam steering mechanism. It also provides means to optically close the point-ahead control loop. The technology required for high bandwidth array tracking was examined and shown to be consistent with current state of the art. It is believed that the single detector design can lead to a significantly reduced system complexity and a lower system cost.

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Chien-Chung Chen, Homayoon Ansari, and James R. Lesh "Precision beam pointing for laser communication system using a CCD-based tracker", Proc. SPIE 1949, Space Guidance, Control, and Tracking, (23 September 1993); https://doi.org/10.1117/12.157075

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