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Proceedings Paper

Fiber optic relayed laser radar
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Paper Abstract

We present a new ladar (laser radar) for the detection of objects off the line-of-sight. This is accomplished by a transceiver and a fiberoptic cable that relays an outgoing laser beam to, and a returning signal from a target. The transmission signal is a laser diode emitted beam at 1550 nm, ideal from the aspects of both eyesafety and minimum loss in a silica fiber. In our immediate application, the detection of an obstacle on the railroad track of a high-speed train, the laser pulses propagate through air and the fiberoptic cable, successively. Under a variety of simulated weather conditions and by traversing twice through a 2 km fiber, we measured a signal-to-noise of 300.

Paper Details

Date Published: 18 August 1995
PDF: 8 pages
Proc. SPIE 2562, Radar/Ladar Processing and Applications, (18 August 1995); doi: 10.1117/12.216960
Show Author Affiliations
Michael M. Tilleman, Aspen Systems, Inc. (United States)
David B. Oakes, Physical Sciences, Inc. (United States)
Kannan Krishnaswami, Aspen Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 2562:
Radar/Ladar Processing and Applications
William J. Miceli, Editor(s)

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