Tm/Ho-doped fiber laser systems using coaxial fiber | Zendy

Krysta A. Boccuzzi | Zendy; G. Alex Newburgh | Zendy; John R. Marciante | Zendy

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Tm/Ho-doped fiber laser systems using coaxial fiber

Author(s) -

Krysta A. Boccuzzi,

G. Alex Newburgh,

John R. Marciante

Publication year - 2019

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.027396

Subject(s) - fiber laser , materials science , optics , coaxial , dispersion shifted fiber , laser , polarization maintaining optical fiber , graded index fiber , laser power scaling , fiber , slope efficiency , optoelectronics , double clad fiber , fiber optic sensor , physics , telecommunications , computer science , composite material

Coaxial fiber lasers are studied via numerical simulations as an alternative to conventional cladding-pumped fiber lasers. The coaxial fiber consists of a Ho-doped core surrounded by a Tm-doped ring. When pumped at 805 nm, this fiber type resulted in a 54% power conversion efficiency, defined as the ratio of output signal power to total input pump power. The performance of this laser was numerically compared to conventional Tm/Ho doped fiber lasers under the same pump conditions. Simulations of a Tm:fiber laser pumping a Ho:fiber laser yielded a maximum 43% power conversion efficiency, while simulations of a Tm/Ho co-doped fiber laser yielded a maximum power conversion efficiency of 34%. These results demonstrate that the coaxial fiber laser has the potential for a significant efficiency improvement over conventional methods in addition to being a more compact system.

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