Improved CO2 lidar receiver based on ultralow-noise FPA technology

Phillip L. Jacobson; George E. Busch; David C. Thompson; Dennis K. Remelius; F. David Wells

doi:10.1117/12.366428

22 October 1999 Improved CO₂ lidar receiver based on ultralow-noise FPA technology

Phillip L. Jacobson, George E. Busch, David C. Thompson, Dennis K. Remelius, F. David Wells

Proceedings Volume 3757, Application of Lidar to Current Atmospheric Topics III; (1999) https://doi.org/10.1117/12.366428
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

A high sensitivity, CO₂ lidar detector, based on recent advances in ultra-low noise, readout integrated circuits (ROIC), is being developed. This detector will combine a high speed, low noise focal plane array with a dispersive grating spectrometer. The spectrometer will filter the large background flux, thereby reducing the limiting background photon shot noise. In order to achieve the desired low noise levels, the HgCdTe FPA will be cooled to approximately 50 K. High speed, short pulse operation of the lidar system should enable the detector to operate with the order of a few noise electrons in the combined detector/ROIC output. Current receiver design concepts will be presented, along with their expected noise performance.

Citation Download Citation

Phillip L. Jacobson, George E. Busch, David C. Thompson, Dennis K. Remelius, and F. David Wells "Improved CO₂ lidar receiver based on ultralow-noise FPA technology", Proc. SPIE 3757, Application of Lidar to Current Atmospheric Topics III, (22 October 1999); https://doi.org/10.1117/12.366428

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