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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