Resonantly cladding-pumped Yb-free Er-doped LMA fiber laser with record high power and efficiency | Zendy

Jun Zhang | Zendy; Viktor Fromzel | Zendy; Mark Dubinskii | Zendy

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Resonantly cladding-pumped Yb-free Er-doped LMA fiber laser with record high power and efficiency

Author(s) -

Jun Zhang,

Viktor Fromzel,

Mark Dubinskii

Publication year - 2011

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.19.005574

Subject(s) - materials science , fiber laser , optics , cladding (metalworking) , laser , doping , slope efficiency , laser power scaling , optoelectronics , optical fiber , physics , composite material

We report the results of our power scaling experiments with resonantly cladding-pumped Er-doped eye-safe large mode area (LMA) fiber laser. While using commercial off-the-shelf LMA fiber we achieved over 88 W of continuous-wave (CW) single transverse mode power at ~1590 nm while pumping at 1532.5 nm. Maximum observed optical-to-optical efficiency was 69%. This result presents, to the best of our knowledge, the highest power reported from resonantly-pumped Yb-free Er-doped LMA fiber laser, as well as the highest efficiency ever reported for any cladding-pumped Er-doped laser, either Yb-co-doped or Yb-free.

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