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Linearly polarized, Q-switched Er-doped fiber laser based on reduced graphene oxide saturable absorber

2012; American Institute of Physics; Volume: 101; Issue: 24 Linguagem: Inglês

10.1063/1.4770373

1520-8842

Grzegorz Soboń, Jarosław Sotor, Joanna Jagiełło, Rafał Koziński, K. Librant, Mariusz Zdrojek, L. Lipińska, Krzysztof M. Abramski,

Laser-Matter Interactions and Applications

We demonstrate generation of linearly polarized pulses from a passively Q-switched Erbium-doped fiber laser. The cavity was designed using only polarization maintaining fibers and components, resulting in linearly polarized output beam with degree of polarization at the level of 97.6%. Reduced graphene oxide was used as a saturable absorber for Q-switched operation. The laser was capable of delivering 1.85 μs pulses with 125 nJ pulse energy at 115 kHz repetition rate.