Electronics Letters · 1990 · 44 citations · 4 references
EngineeringLaser ScienceLaser PhysicsOptical MetrologyLaser ApplicationsFiber OpticsLaser FabricationSurface-emitting LasersCoherent SourceInjection LaserHigh-power LasersLaser OpticsSemiconductor LasersOptical PropertiesOptical SensorLight DetectionLaser-based SensorOptical SystemsFeedback Semiconductor LaserPhotonicsLidarOptical SensorsOptoelectronics
An air-spaced coherent LIDAR (light detection and ranging) employing a two-section distributed feedback (DFB) injection laser is demonstrated. The relative distance of a mirror target was detected with 0.1 μm resolution. The absolute distance of a diffuse target was measured with 1 cm accuracy. These results indicate that semiconductor lasers developed for communication systems may be useful for sensing applications such as robotic vision, surface profiling and automated fabrication.
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