The Supercontinuum (SC) has certain advantages in atmospheric transmission by virtue of its wide spectrum, high brightness and good directionality, etc. In this paper, two SC sources, laser-pumped photonic crystal fiber generating supercontinuum and random fiber laser structure outputting supercontinuum, are used to carry out an experimental study of atmospheric transmission at a distance of about 1 km. By analyzing the changes of power, time domain, spectrum and spot distribution pre- and post-transmission, the effect of atmospheric turbulence on the supercontinuum transmission is studied from the experimental point of view, which lays a solid foundation for future space transmission applications of SC.
Linearly-polarized supercontinuum (SC) generated in an all-polarization-maintaining random fiber laser (RFL) structure is demonstrated. A visible to near-infrared SC spanning from 600 nm to 1900 nm is generated in a 100 m polarizationmaintaining germanium doped fiber (GDF). The measured polarization extinction ratio (PER) at all wavelengths from 800 nm to 1700 nm is greater than 18 dB, verifying the SC is well linearly-polarized. The results proved RFL can be a simple and cost effective linearly-polarized SC generation method for practical applications such as hyperspectral imaging and remote sensing.
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