Active synchronization and modulation of fiber lasers with a graphene electro-optic modulator

Diao Li, Hui Xue, Yadong Wang, Mei Qi, Wonjae Kim, Changfeng Li, Juha Riikonen, Zhaoyu Ren, Jintao Bai*, Harri Lipsanen, Zhipei Sun

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    14 Citations (Scopus)

    Abstract

    We report the synchronization of two actively Q-switched fiber lasers operating at 1.5 μm and 2 μm with a shared broadband graphene electro-optic modulator. Two graphene monolayer sheets separated with a high-k HfO2 dielectric layer are configured to enable broadband light modulation. The graphene electro-optic modulator is shared by two optical fiber laser cavities (i.e., an erbium-doped fiber laser cavity and a thulium/holmium-codoped fiber laser cavity) to actively Q-switch the two lasers, resulting in stable synchronized pulses at 1.5 μm and 2 μm with a repetition rate ranging from 46 kHz to 56 kHz.
    Original languageEnglish
    Pages (from-to)3497-3500
    JournalOptics Letters
    Volume43
    Issue number15
    DOIs
    Publication statusPublished - 1 Aug 2018
    MoE publication typeA1 Journal article-refereed

    Funding

    European Union’s Seventh Framework Programme (FP7) (631610, 696656); Academy of Finland (276376, 284548, 295777, 304666, 312297, 312551, 314810); China Scholarship Council (CSC); International Science and Technology Cooperation Project (2014DFR10780); National Science Foundation for Young Scholars of China (61505162); Natural Science Basic Research Plan in Shaanxi Province of China (2016JQ6059); Foundation of the Education Committee of Shaanxi Province (14JK1756).

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