Passively Mode-Locked Solid-State Laser with Absorption Tunable Graphene Saturable Absorber Mirror

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Yiran Wang
  • Baitao Zhang
  • He Yang
  • Jia Hou
  • Xiancui Su
  • Zhipei Sun

  • Jingliang He

Research units

  • Hangzhou Dianzi University
  • Shandong University
  • Liaocheng University

Abstract

Two-dimensional layered materials have attracted huge interest in the generation of ultrafast laser for their excellent saturable absorption properties. However, it is still challenging to precisely control their saturable absorption properties. Here, by alternatively changing the electric field intensity on the surface of high-reflection mirror, we successfully control the nonlinear absorption properties (e.g., saturable fluence, modulation depth) of graphene-based saturable absorber mirrors (GSAM) at the optical telecommunication wavelength of 1.3 mu m and their applications in solid-state lasers for the first time. Modulation depth of 1.2% is obtained from a GSAM with deposition of a lambda/8 ( = 1.3 mu m) thick SiO2 layer between the monolayer graphene and a high-reflection mirror, while modulation depth is increased to 4.3% with a lambda/4 thick SiO2 layer insertion in another GSAM. Pulses with the duration of 20 ps (lambda/8 thick SiO2 insertion) and 7.4 ps (lambda/4 thick SiO2 insertion) are achieved, respectively, based on the two mirrors. Our results indicate that this method is easy and reliable to versatility modulate the saturable absorption properties of other two-dimensional layered materials beyond graphene for the generation of ultrafast solid-state lasers.

Details

Original languageEnglish
Article number8674562
Pages (from-to)2927-2931
Number of pages5
JournalJournal of Lightwave Technology
Volume37
Issue number13
Publication statusPublished - 1 Jul 2019
MoE publication typeA1 Journal article-refereed

    Research areas

  • Graphene saturable absorber, mode-locked lasers

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