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Tunable degree of polarization in a Figure-8 fiber laser

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posted on 2023-01-12, 16:09 authored by Banoj Kumar Nayak, Cijy Mathai, Dmitry Panna, Eyal Buks
We experimentally study a fiber loop laser in the Figure-8 configuration, and explore the dependency of the degree of polarization on controlled parameters. To account for the experimental observations, a mapping is derived to evaluate the polarization time evolution. Nonlinearity induced by Kerr effect and gain saturation gives rise to rich dynamics. We find that degree of polarization can be increased by tuning the system into a region where the mapping has a locally stable fixed point.

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