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首页> 外文期刊>Applied optics >Field trial of active remote sensing using a high-power short-wave infrared supercontinuum laser
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Field trial of active remote sensing using a high-power short-wave infrared supercontinuum laser

机译：使用大功率短波红外超连续谱激光器进行主动遥感的现场试验

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摘要

Field trial results of a 5 W all-fiber broadband supercontinuum (SC) laser covering the short-wave infrared (SWIR) wavelength bands from ～1.55 to 2.35 μm are presented. The SC laser is kept on a 12 story tower at the Wright Patterson Air Force Base and propagated through the atmosphere to a target 1.6 km away. Beam quality of the SC laser after propagating through 1.6 km is studied using a SWIR camera and show a near diffraction limited beam with an M~2 value of <1.3. The SC laser is used as the illumination source to perform spectral reflectance measurements of various samples at 1.6 km, and the results are seen to be in good agreement with in-lab measurements using a conventional lamp source. Spectral stability measurements are performed after atmospheric propagation through 1.6 km and show a relative variability of ～4%-8% across the spectrum depending on the atmospheric turbulence effects. Spectral stability measurements are also performed in-lab and show a relative variability of <0.6% across the spectrum.
机译：提出了覆盖约1.55至2.35μm的短波红外（SWIR）波段的5 W全光纤宽带超连续谱（SC）激光器的现场试验结果。 SC激光保持在赖特·帕特森空军基地的12层塔上，并通过大气传播到1.6公里外的目标。使用SWIR摄像机研究了SC激光传播通过1.6 km后的光束质量，并显示了M〜2值<1.3的近衍射极限光束。 SC激光用作照明源，以在1.6 km处执行各种样品的光谱反射率测量，结果与使用常规灯源的实验室内测量结果非常一致。在大气传播了1.6 km之后进行了光谱稳定性测量，结果表明，取决于大气湍流效应，整个光谱的相对变化为〜4％-8％。光谱稳定性测量也在实验室内进行，并且显示整个光谱的相对变异性<0.6％。

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