High power Yb-doped photonic bandgap fiber oscillator at 1178 nm | Zendy

Xinyan Fan | Zendy; Meishin Chen | Zendy; Akira Shirakawa | Zendy; Kenichi Ueda | Zendy; Christina B. Olausson | Zendy; Jens K. Lyngsø | Zendy; Jes Broeng | Zendy

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High power Yb-doped photonic bandgap fiber oscillator at 1178 nm

Author(s) -

Xinyan Fan,

Meishin Chen,

Akira Shirakawa,

Kenichi Ueda,

Christina B. Olausson,

Jens K. Lyngsø,

Jes Broeng

Publication year - 2012

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.20.014471

Subject(s) - materials science , fiber bragg grating , optics , optoelectronics , lasing threshold , photonic crystal fiber , fiber laser , amplified spontaneous emission , photonic crystal , fiber , photonics , wavelength , laser , physics , composite material

An ytterbium-doped solid-core photonic bandgap fiber oscillator in an all-fiber format is investigated for high power at an extreme long wavelength. The photonic bandgap fiber is spliced with two fiber Bragg gratings to compose the cavity. The sharp-cut bandpass distributed filtering effect of the photonic bandgap fibers efficiently suppresses amplified spontaneous emission in the conventional high-gain region. Fine adjustment of the short cut-off wavelength by coiling with tighter diameter is performed to suppress parasitic lasing. A record output power of 53.6 W with a slope efficiency of 53% at 1178 nm was demonstrated.

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