L-band femtosecond fiber laser based on reduced graphene oxide polymer composite saturable absorber

We demonstrate an L-band passively mode-locked erbium-doped fiber laser emitting at 1599.43 nm wavelength at a pulse train of 5.68 MHz. The microfiber reduced graphene oxide composite behaves as a saturable absorber that was fabricated using in-situ wet chemical and dip-coating methods. During opera...

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Main Authors: Ng, E. K., Lau, K. Y., Lee, H. K., Mohd Yusoff, N., Sarmani, A. R., Omar, M. F., Mahdi, M. A.
格式: Article
出版: Optica 2021
在線閱讀:http://psasir.upm.edu.my/id/eprint/94013/
https://opg.optica.org/ome/fulltext.cfm?uri=ome-11-1-59&id=444353
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機構: Universiti Putra Malaysia
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總結:We demonstrate an L-band passively mode-locked erbium-doped fiber laser emitting at 1599.43 nm wavelength at a pulse train of 5.68 MHz. The microfiber reduced graphene oxide composite behaves as a saturable absorber that was fabricated using in-situ wet chemical and dip-coating methods. During operation, a single-pulse soliton was observed at a mode-locking threshold of 40 mW. This is a few times lower than most of the previous assessments in the same class of wavelength band and graphene saturable absorbers. The pulse duration was 568 fs with a maximum average output power of 6.75 mW. In addition, the superiority of this simple fabrication method facilitates its potential of mass production for applications in ultrafast photonics industries.