Long range 3D imaging with a 32x32 Geiger mode InGaAs/InP camera

Philip A. Hiskett; Karen J. Gordon; Jeremy W. Copley; Robert A. Lamb

doi:10.1117/12.2050540

28 May 2014 Long range 3D imaging with a 32×32 Geiger mode InGaAs/InP camera

Philip A. Hiskett, Karen J. Gordon, Jeremy W. Copley, Robert A. Lamb

Proceedings Volume 9114, Advanced Photon Counting Techniques VIII; 91140I (2014) https://doi.org/10.1117/12.2050540
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

This paper reports the performance of a long range 3D imaging system operating at a wavelength of 1550nm incorporating a Geiger mode 32x32 array InGaAs/InP camera. A cross-correlation technique were used to mitigate range aliasing and therefore enable the measurement of the absolute range to single or multiple surfaces within the instantaneous field of view of each pixel in the 2D array. The system uses a fibre amplified laser source operating at an average pulse repetition rate of 125kHz with pulse energies of 2.4μJ per pulse. Measurements of the absolute range to remote manmade Lambertian surfaces and foliage at ranges up to 10km with range accuracy of better than 4cm are reported. The simultaneous imaging and measurement of the absolute range of two remote manmade Lambertian surfaces separated by >1km is also presented.

Citation Download Citation

Philip A. Hiskett, Karen J. Gordon, Jeremy W. Copley, and Robert A. Lamb "Long range 3D imaging with a 32×32 Geiger mode InGaAs/InP camera", Proc. SPIE 9114, Advanced Photon Counting Techniques VIII, 91140I (28 May 2014); https://doi.org/10.1117/12.2050540

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