From Event: SPIE Commercial + Scientific Sensing and Imaging, 2017
We describe Geiger-mode avalanche photodiode (GmAPD) cameras designed with asynchronous free-running operation that supports single-photon direct detection and coherent detection 3D LiDAR imaging as well as free-running applications such as free-space optical communications and target acquisition and tracking. Each free-running pixel in the 32x32 focal plane array performs independent time-of-flight measurements with a selectable reset time between 0.1 and 10 μs. Asynchronous reporting of time-of-flight and pixel location data allows continuous operation for arbitrarily long periods of time at sampling rates exceeding 0.7 Gsample/s. We report results for cameras optimized for operation using either 1.0 or 1.5 μm LiDAR sources.
Mark Itzler, Gennaro Salzano, Mark Entwistle, Xudong Jiang, Mark Owens, Brian Piccione, Sam Wilton, Krystyna Slomkowski, Scott C. Roszko, and Esther Wei, "Asynchronous Geiger-mode APD cameras with free-running InGaAsP pixels (Conference Presentation)," Proc. SPIE 10212, Advanced Photon Counting Techniques XI, 102120K (Presented at SPIE Commercial + Scientific Sensing and Imaging: April 13, 2017; Published: 9 June 2017); https://doi.org/10.1117/12.2264573.5460497449001.
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