Attenuation properties of 1.06 μm laser radiation in water fog

Yuan Hui; Hao Minglei; Li Fanxian; Shi Qianyi

doi:10.3788/IRLA201847.1006003

The attenuation property of 1.06 m laser radiation in water fog was investigated experimentally. The attenuation of 1.06 m laser radiation in water fog was measured at different meteorological optical range (MOR). Based on experimental data, the equivalent MOR of 1.06 m laser radiation was calculated. The extinction coefficient of 1.06 m laser radiation in water fog at different MOR was calculated based on empirical equation and experiment data, respectively. The comparison of the result shows the empirical extinction coefficient has significant deviation with experiment result, especially at low MOR. A new equation was derived for calculating the extinction coefficient of 1.06 m laser radiation in water fog based on MOR value, which is of great importance in evaluating the attenuation properties of near infrared laser radiation in water fog.

Attenuation properties of 1.06 μm laser radiation in water fog

1. Beijing Institute of Aviation Meteorology,Beijing 100085,China

Received Date: 2018-05-13

Rev Recd Date: 2018-06-17

Publish Date: 2018-10-25

Key words:

Abstract: The attenuation property of 1.06 m laser radiation in water fog was investigated experimentally. The attenuation of 1.06 m laser radiation in water fog was measured at different meteorological optical range (MOR). Based on experimental data, the equivalent MOR of 1.06 m laser radiation was calculated. The extinction coefficient of 1.06 m laser radiation in water fog at different MOR was calculated based on empirical equation and experiment data, respectively. The comparison of the result shows the empirical extinction coefficient has significant deviation with experiment result, especially at low MOR. A new equation was derived for calculating the extinction coefficient of 1.06 m laser radiation in water fog based on MOR value, which is of great importance in evaluating the attenuation properties of near infrared laser radiation in water fog.

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Attenuation properties of 1.06 μm laser radiation in water fog

doi: 10.3788/IRLA201847.1006003

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