Graphene Q-switched 2.78 μm Er3+-doped fluoride fiber laser

Chen Wei, Xiushan Zhu, F. Wang, Y. Xu, Kaushik Balakrishnan, Feng Song, Robert A. Norwood, N. Peyghambarian

Research output: Contribution to journalArticlepeer-review

180 Scopus citations


We report a diode-pumped 2.78 μm Er3+-doped ZBLAN fiber laser passively Q switched by a graphene saturable absorber, which was directly deposited onto a fiber dichroic mirror by the method of optically driven deposition. Stable Q-switched operation with a pulse duration of 2.9 μs and a pulse energy of 1.67 μJ was achieved in a 10mlong gain fiber. The pulse duration was reduced to 1 μs when the gain fiber length was shortened to 2 m. This Letter demonstrates that graphene is a promising and reliable saturable absorber for mid-infrared pulse generation at 3 μm.

Original languageEnglish (US)
Pages (from-to)3233-3236
Number of pages4
JournalOptics letters
Issue number17
StatePublished - Sep 1 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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