3 July 2003 Self-contained eye-safe laser radar using an erbium-doped fiber laser
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Proceedings Volume 4974, Advances in Fiber Lasers; (2003) https://doi.org/10.1117/12.484167
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
Abstract
An Eye-safe Laser Radar has been developed under White Sands Missile Range sponsorship. The SEAL system, the Self-contained Eyesafe Autonomous Laser system, is designed to measure target position within a 0.5 meter box. Targets are augmented with Scotchlite for ranging out to 6 km and augmented with a retroreflector for targets out to 20 km. The data latency is less than 1.5 ms, and the position update rate is 1 kHz. The system is air-cooled, contained in a single 200-lb, 6-cubic-foot box, and uses less than 600 watts of prime power. The angle-angle-range data will be used to measure target dynamics and to control a tracking mount. The optical system is built around a diode-pumped, erbium-doped fiber laser rated at 1.5 watts average power at 10 kHz repetition rate with 25 nsec pulse duration. An 8 inch-diameter, F/2.84 telescope is relayed to a quadrant detector at F/0.85 giving a 5 mrad field of view. Two detectors have been evaluated, a Germanium PIN diode and an Intevac TE-IPD. The receiver electronics uses a DSP network of 6 SHARC processors to implement ranging and angle error algorithms along with an Optical AGC, including beam divergence/FOV control loops.Laboratory measurements of the laser characteristics, and system range and angle accuracies will be compared to simulations. Field measurements against actual targets will be presented.
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Thomas Arthur Driscoll, Thomas Arthur Driscoll, Dan J. Radecki, Dan J. Radecki, Nan E. Tindal, Nan E. Tindal, John P. Corriveau, John P. Corriveau, Richard Denman, Richard Denman, } "Self-contained eye-safe laser radar using an erbium-doped fiber laser", Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); doi: 10.1117/12.484167; https://doi.org/10.1117/12.484167
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