Tunable Laser for High-Performance, Low-Cost Distributed Sensing Platform

The proposed effort will integrate identified performance optimization approaches to produce a tunable laser module exhibiting cost and performance characteristics appropriate for NASA’s needs. The technology will considerably improve NASA's flight test measurement and in-situ monitoring capability over the current state of the art, opening up new distributed sensing possibilities for real-time, in-situ airframe / space frame measurements. In addition to supporting distributed static strain and temperature measurements, the technology helps enable distributed modal analysis, non-destructive evaluation, and identification / characterization of transient events. With an improved understanding of distributed airframe / space frame structural dynamics, the technology will lead to improved airframe and component designs. With improved, integrated real-time feedback control signal generation and structural health monitoring, future aircraft and space-flight vehicles will operate more safely, predictably, and efficiently.