High-speed CW lidar retrieval using spectral lock-in algorithm

Jeff Pruitt; Michael E. Dobbs; Matthew Gypson; Benjamin R. Neff; William E. Sharp

doi:10.1117/12.506947

23 December 2003 High-speed CW lidar retrieval using spectral lock-in algorithm

Jeff Pruitt, Michael E. Dobbs, Matthew Gypson, Benjamin R. Neff, William E. Sharp

Proceedings Volume 5154, Lidar Remote Sensing for Environmental Monitoring IV; (2003) https://doi.org/10.1117/12.506947
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

A continuous-wave (CW) NIR carbon-dioxide monitoring system, incorporating Wavelength Modulation Spectroscopy (WMS), has been developed and was tested aboard the Spirit of Goodyear airship platform. The data shows sensitivities nearly identical to previous ground-based tests but with much higher information rates (100Hz). These tests were conducted over regions with varying ground albedo and included path lengths up to 1.5 km. The system utilized commercial-off-the-shelf (COTS) components including telecom laser diodes and amplifiers. Currently, the system is limited by Erbium Doped Fiber Amplifier (EDFA) spectral bandwdith, but the ever-increasing average power of quantum cascade lasers coupled with the development of midwave fiber technology could make this CW-based architecture a viable solution for future airborne sensors in the MWIR region.

Citation Download Citation

Jeff Pruitt, Michael E. Dobbs, Matthew Gypson, Benjamin R. Neff, and William E. Sharp "High-speed CW lidar retrieval using spectral lock-in algorithm", Proc. SPIE 5154, Lidar Remote Sensing for Environmental Monitoring IV, (23 December 2003); https://doi.org/10.1117/12.506947

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