Next Generation LADAR for Long-range, High-precision NASA Applications

Lead Investigator: Wm. Randall Babbitt, PI and Peter A. Roos, Co-PI, Montana State University

Montana State University - Spectrum Lab will be developing and demonstrating a low-cost, robust, stabilized chirped laser source for laser detection and ranging (LADAR) systems that will be ideal for a number of space-based NASA applications.  The stabilized chirped laser will be capable of rapidly measuring the distance between space-based objects.  The laser would enable ultra-high resolution astronomical imaging and provide accurate measurement and control of the positions of multiple widely separated spacecraft.  The LADAR �would be greatly beneficial to a range of NASA missions and concepts,� according to a NASA expert, including orbital telescope assembly and relative navigation sensing for rendezvous and proximity operations within the Constellation Program.�   The technology �fills a hole� for NASA by providing �more measurement flexibility and higher performance.� 

            Spectrum Labs recent innovations in controlling frequency-swept optical laser sources enables highly linear frequency laser tuning over extremely large optical bandwidths.  Since LADAR resolution is inversely proportional to bandwidth, these broad band sources will enable LADAR resolutions that exceed traditional approaches by several orders of magnitude.  The distance to objects up to 100 km away can be measured with resolutions down to sub-millimeters.