Experimental investigations on range-resolved refractive index structure parameterCn^2, by optical measurements over a 2.0 km free space laser path

P. Sudhakar; K. Anitha Sheela; D. Ramakrishna Rao; Malladi Satyanarayana

doi:10.1117/12.2223418

5 May 2016 Experimental investigations on range-resolved refractive index structure parameter C_n², by optical measurements over a 2.0 km free space laser path

P. Sudhakar, K. Anitha Sheela, D. Ramakrishna Rao, Malladi Satyanarayana

Author Affiliations +

Proceedings Volume 9879, Lidar Remote Sensing for Environmental Monitoring XV; 987919 (2016) https://doi.org/10.1117/12.2223418
Event: SPIE Asia-Pacific Remote Sensing, 2016, New Delhi, India

Abstract

There is growing interest in development of electro-optical systems capable of operation over long atmospheric distances in various atmospheric conditions. Some of these systems include laser communications, remote sensing, active and passive imaging, target tracking and designation and laser beam projection (directed energy) systems. As increasingly sophisticated electro-optical systems are used in the atmosphere, the character of the medium becomes important. Optical turbulence is one of the most important characteristics for propagation through the atmosphere. A single ended experimental setup using the Nd: YAG laser operating at 1064nm is used to study the temporal and spatial variations of refractive index structure parameter C_n² experimentally. In this paper we present the details of the experimental setup used for the measurement of range resolved refractive index structure parameter C_n², over a two way slant 4.0 km free space laser path. Some of the results obtained using the experimental setup are presented and discussed.

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P. Sudhakar, K. Anitha Sheela, D. Ramakrishna Rao, and Malladi Satyanarayana "Experimental investigations on range-resolved refractive index structure parameter C_n², by optical measurements over a 2.0 km free space laser path", Proc. SPIE 9879, Lidar Remote Sensing for Environmental Monitoring XV, 987919 (5 May 2016); https://doi.org/10.1117/12.2223418

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