The rare-earth-doped fiber lasers have spectral line-width in the range of _________________

Name: The rare-earth-doped fiber lasers have spectral line-width in the range of _________________
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Rare-earth-doped fiber lasers typically have a narrow spectral linewidth, which is in the range of 0.1 to 1 nm. This narrow linewidth is a result of the homogeneous broadening mechanisms in the doped fiber, which limit the spectral width of the laser output.

The Rare-Earth-Doped Fiber Lasers Have Spectral Line-Width in the Range