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    Pump Mode Characterization of Annular Cladding Erbium-Doped Fibers Using Low-Coherence Interferometry

Pump Mode Characterization of Annular Cladding Erbium-Doped Fibers Using Low-Coherence Interferometry

11 March 2018

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We characterize core and cladding pump modes of annular cladding 6-core 3-mode erbium-doped fibers using low-coherence interferometry (LCI). Efficient mode conversion at pump wavelength for modal gain equalization is also demonstrated and characterized by LCI.

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