Complex soliton patterns formation in a multi-wavelength Er-doped fiber laser

We report on the emission of complex soliton patterns from a multi-wavelength mode-locked Er-doped fiber laser through nonlinear polarization rotation (NPR). The optical spectrum exhibits three distinct well-separated spectral peaks centred at 1567 nm, 1585 nm, and 1616 nm. It is mainly attributed t...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-05, Vol.1919 (1), p.12004
Main Authors: Salhi, M., Kemel, M., Nady, A., Semaan, G., Sanchez, F.
Format: Article
Language:English
Subjects:
Birefringence
Doped fibers
Fiber lasers
Physics
Solitary waves
Tunable filters
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Summary:We report on the emission of complex soliton patterns from a multi-wavelength mode-locked Er-doped fiber laser through nonlinear polarization rotation (NPR). The optical spectrum exhibits three distinct well-separated spectral peaks centred at 1567 nm, 1585 nm, and 1616 nm. It is mainly attributed to the linear losses and the nonlinear birefringence filtering inside the cavity. Each wavelength in the spectrum contributes by its own soliton dynamics to a composite-state soliton regime. This is verified by using an external optical tunable filter with 0.5 nm filter bandwidth to filter out the lasing at each wavelength. By controlling the cavity parameters, this regime still can be operated in harmonic states.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1919/1/012004