Long period fiber gratings for the mitigation of parasitic laser effects in mid-infrared fiber amplifiers | Zendy

Maximilian Heck | Zendy; Jean-Christophe Gauthier | Zendy; Andreas Tünnermann | Zendy; Réal Vallée | Zendy; Stefan Nolte | Zendy; Martin Bernier | Zendy

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Long period fiber gratings for the mitigation of parasitic laser effects in mid-infrared fiber amplifiers

Author(s) -

Maximilian Heck,

Jean-Christophe Gauthier,

Andreas Tünnermann,

Réal Vallée,

Stefan Nolte,

Martin Bernier

Publication year - 2019

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.27.021347

Subject(s) - optics , materials science , supercontinuum , fiber laser , fiber bragg grating , dispersion shifted fiber , polarization maintaining optical fiber , photonic crystal fiber , optoelectronics , amplifier , grating , long period fiber grating , lasing threshold , optical fiber , fiber optic sensor , wavelength , physics , cmos

A concept to mitigate parasitic lasing in mid-IR fiber amplifiers using a single long period fiber grating is shown. Using tightly confined ultrashort laser pulses at 800 nm, a grating was directly inscribed into the core of an erbium doped fluoride glass fiber showing a strong attenuation down to -27 dB at desired wavelength. The concept reveals great potential to improve the average output power and attainable spectral range of low repetition rate in-amplifier supercontinuum generation.

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