Graphene Actively Mode-Locked Lasers

Jakub Bogusławski*, Yadong Wang, Hui Xue, Xiaoxia Yang, Dong Mao, Xuetao Gan, Zhaoyu Ren, Jianlin Zhao, Qing Dai, Grzegorz Soboń, Jarosław Sotor, Zhipei Sun

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)
172 Downloads (Pure)


Actively mode-locked lasers offer varying degrees of flexibility for a wider range of applications than their passively modulated counterparts, due to their capability for electrically controlled ultrahigh repetition rate operation. Graphene based electrooptic modulators with unique advantages of broad operation bandwidth and ultrafast speed are suitable for light modulation in various optoelectronic applications. Here, an actively mode-locked laser with a graphene based electrooptic modulator is reported for the first time. The active mode-locking technique combined together with the intracavity nonlinear pulse shortening effect allows the generation of transform-limited 1.44 ps pulses with pulse energy of 844 pJ. The electrically controlled repetition rate of generated pulses, a key performance advantage of active mode-locking, is also demonstrated. These results provide a practical and effective approach for actively mode-locked lasers with broad operation bandwidth and compact footprint, which contributes a new way for applications of two-dimensional (2D) layered materials in ultrafast lasers.

Original languageEnglish
Article number1801539
JournalAdvanced Functional Materials
Issue number28
Early online date1 Jan 2018
Publication statusPublished - Jul 2018
MoE publication typeA1 Journal article-refereed


  • Electrooptic materials
  • Graphene
  • Mode-locked lasers
  • Photonics

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  • Projects


    Sun, Z., Das, S., Generalov, A. & Uddin, M.


    Project: Academy of Finland: Other research funding

    Finnish Centre of Excellence in Quantum Technology

    Sun, Z., Turunen, M., Wang, Y., Du, L., Bai, X. & Cui, X.


    Project: Academy of Finland: Other research funding

    High-performance ultrafast mid-infrared fiber lasers for health and wellbeing applications

    Turunen, M., Sun, Z., Wang, Y., Dai, Y., Yang, H., Jussila, H. & Salomaa, V.


    Project: Academy of Finland: Other research funding



    Anna Rissanen (Manager)

    Aalto University

    Facility/equipment: Facility

  • Cite this

    Bogusławski, J., Wang, Y., Xue, H., Yang, X., Mao, D., Gan, X., Ren, Z., Zhao, J., Dai, Q., Soboń, G., Sotor, J., & Sun, Z. (2018). Graphene Actively Mode-Locked Lasers. Advanced Functional Materials, 28(28), [1801539].