High power resonant pumping of Tm-doped fiber amplifiers in core- and cladding-pumped configurations | Zendy

Daniel Creeden | Zendy; Benjamin Johnson | Zendy; Glen A. Rines | Zendy; Scott D. Setzler | Zendy

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High power resonant pumping of Tm-doped fiber amplifiers in core- and cladding-pumped configurations

Author(s) -

Daniel Creeden,

Benjamin Johnson,

Glen A. Rines,

Scott D. Setzler

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.029067

Subject(s) - materials science , slope efficiency , cladding (metalworking) , optics , fiber laser , optical amplifier , amplifier , optoelectronics , core (optical fiber) , doping , double clad fiber , optical pumping , optical fiber , laser , dispersion shifted fiber , fiber optic sensor , physics , wavelength , metallurgy , composite material , cmos

We have demonstrated ultra-high efficiency amplification in Tm-doped fiber with both core- and cladding-pumped configurations using a resonant tandem-pumping approach. These Tm-doped fiber amplifiers are pumped in-band with a 1908 nm Tm-doped fiber laser and operate at 1993 nm with >90% slope efficiency. In a core-pumped configuration, we have achieved 92.1% slope efficiency and 88.4% optical efficiency at 41 W output power. In a cladding-pumped configuration, we have achieved 123.1 W of output power with 90.4% optical efficiency and a 91.6% slope efficiency. We believe these are the highest optical efficiencies achieved in a Tm-doped fiber amplifier operating in the 2-micron spectral region.

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