PT-symmetry of coupled fiber lasers | Zendy

Dmitry V. Churkin | Zendy; Sergey Smirnov | Zendy; Maxim O. Makarenko | Zendy; Ilya D. Vatnik | Zendy; Sergey V. Suchkov | Zendy; Andrey A. Sukhorukov | Zendy

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PT-symmetry of coupled fiber lasers

Author(s) -

Dmitry V. Churkin,

Sergey Smirnov,

Maxim O. Makarenko,

Ilya D. Vatnik,

Sergey V. Suchkov,

Andrey A. Sukhorukov

Publication year - 2017

Publication title -

anu open research (australian national university)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1117/12.2284985

Subject(s) - fiber laser , fiber , symmetry (geometry) , double clad fiber , polarization maintaining optical fiber , materials science , power (physics) , phase (matter) , optical fiber , physics , optics , optoelectronics , fiber optic sensor , quantum mechanics , mathematics , geometry , composite material

In this work, we propose a concept of a coupled fiber laser exhibiting PT-symmetry properties. We consider a system operated via Raman gain. The scheme comprises two identical fiber loops (ring cavities) connected by means of two fiber couplers with variable phase shift between them. We show that by changing the phase shift one can switch between generation regimes, realizing either PT-symmetric or PT-broken solution. Furthermore, the paper investigates some peculiarities of the system such as power oscillations and the role of nonlinear phase shift in fiber rings.

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