A high efficiency Faraday filter used in sodium wind lidar

Zhilin Hu; D.A. Krueger; C.Y. She

doi:10.1364/ORS.2001.OMD9

Optical Remote Sensing
OSA Trends in Optics and Photonics (Optica Publishing Group, 2001),
paper OMD9
•https://doi.org/10.1364/ORS.2001.OMD9

A high efficiency Faraday filter used in sodium wind lidar

Zhilin Hu, D. A. Krueger, and C. Y. She

Optical Remote Sensing 2001

Coeur d'Alene, Idaho United States
ISBN: 1-55752-667-2

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Z. Hu, D. A. Krueger, and C. Y. She, "A high efficiency Faraday filter used in sodium wind lidar," in Optical Remote Sensing, A. Sawchuk, ed., Vol. 52 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2001), paper OMD9.

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Abstract

A high efficiency sodium vapor Faraday filter used in sodium lidar is discussed. The new generation has lower working temperature 124 C and magnetic leakage. These prolong the lifetime of the filter and increase the total efficiency of the receiving system. The improved filter increased the transmission by a factor of three to 28% with a bandwidth (FWHM) of 2GHz. The new filters have proven invaluable for making daytime measurements with the sodium wind lidars in Fort Collins and in Norway.

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