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- W2070036354 abstract "Optical turbulence degrades the quality of laser beam propagation and the quality of the image of optical system, limiting the spatial resolution that can be obtained. A novel single-air-gap fiber optical interferometric system useful for non-contact measurement of the fine structure of optical turbulence is presented. The main idea of this system is based on the application of a specially constructed optical fiber Mach-Zehnder interferometer to measure the phase fluctuations effected by the random fluctuations of refractive index in the turbulent atmosphere. The light source is a long coherence length infrared laser operating at the wavelength of 1.31μm and the optical path exposed to the atmosphere can be adjusted to a most suitable value according to the operational environment. Theoretical estimation illustrates that the system can measure the minimal atmospheric refractive index fluctuation up to 10<sup>-10</sup> during a 2cm propagation path. It is easy to have a calibration of the system and the result shows that the voltage refractive index sensitivity is about 2.1x10<sup>-6</sup> V<sup>-1</sup>. The system is integrated and well fixed in a burly airproof box with only the sensing arm exposed to the air. It follows that the system is suitable for the measurement of atmospheric turbulence over land and ocean surfaces." @default.
- W2070036354 created "2016-06-24" @default.
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- W2070036354 date "2006-02-13" @default.
- W2070036354 modified "2023-10-18" @default.
- W2070036354 title "An optical fiber interferometric system for non-contact measurement of atmospheric optical turbulence" @default.
- W2070036354 doi "https://doi.org/10.1117/12.678081" @default.
- W2070036354 hasPublicationYear "2006" @default.
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