Graphene Q-switched Ho3+-doped ZBLAN fiber laser at 1190 nm

Shujing Liu, Xiushan Zhu, Gongwen Zhu, Kaushik Balakrishnan, Jie Zong, Kort Wiersma, Arturo Chavez-Pirson, R. A. Norwood, N. Peyghambarian

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

We report Q-switched pulse operation of holmium (Ho3-)-doped ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) at ∼1190 nm in an all-fiber ring laser by using a fiber-optic graphene saturable absorber, which was fabricated by depositing graphene onto the flat surface of a side-polished D-shaped fiber. Stable Q-switched operation was established at a pump power of 180 mW with a repetition rate of 24 kHz and pulse width of 5.7 μs. When the pump power was increased to 1125 mW, 0.44 μJ Q-switched pulses with a repetition rate of 111 kHz and a pulse width of 0.8 μs were generated.

Original languageEnglish (US)
Pages (from-to)147-150
Number of pages4
JournalOptics letters
Volume40
Issue number2
DOIs
StatePublished - Jan 15 2015

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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