Two-type modulation produces chaos and quasi-period in an erbium-doped fiber laser containing a digital photon attenuator

Senlin Yan

doi:10.1117/12.2644320

9 September 2022 Two-type modulation produces chaos and quasi-period in an erbium-doped fiber laser containing a digital photon attenuator

Senlin Yan

Author Affiliations +

Proceedings Volume 12328, Second International Conference on Optics and Image Processing (ICOIP 2022); 123280S (2022) https://doi.org/10.1117/12.2644320
Event: Second International Conference on Optics and Image Processing (ICOIP 2022), 2022, Taian, China

Abstract

We present a two-type modulation method and study how to produce chaos and quasi-period in an erbium-doped fiber laser, as well as give a 2-level laser physical model including a digital photo attenuator controlling of lasing photon, and a modulator shifting the pumping. The laser appears chaos and some quasi-cycle when the pump of the laser is modulated and the digital modulation is operated to absorb lasing photon using the digital photon attenuator. We illustrate a route to chaos by altering the pump modulation levels and the absorption levels of the digital photon attenuator while a cycle, a three-cycle, a four-cycle, and other quasi-cycle and chaos show in the laser. We analyze the effect of the levels of the photon attenuation and the pump modulation setting in other values on dynamical behaviour of the laser, and give a route away from chaos while a quasi-cycle movement and chaos are found. And we find the threecycle distribution and chaos distribution via adjusting the absorption and modulation levels and frequencies. We find that the absorption modulation levels and frequencies lead to the dynamics behaviour of the laser. Our results have certain reference value to laser optics, and chaos.

Citation Download Citation

Senlin Yan "Two-type modulation produces chaos and quasi-period in an erbium-doped fiber laser containing a digital photon attenuator", Proc. SPIE 12328, Second International Conference on Optics and Image Processing (ICOIP 2022), 123280S (9 September 2022); https://doi.org/10.1117/12.2644320

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