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

30 Citations (Scopus)
155 Downloads (Pure)

Abstract

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
Volume28
Issue number28
Early online date1 Jan 2018
DOIs
Publication statusPublished - Jul 2018
MoE publication typeA1 Journal article-refereed

Keywords

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

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