Solution processed MoS2-PVA composite for sub-bandgap mode-locking of a wideband tunable ultrafast Er: fiber laser

Meng Zhang, Richard C T Howe, Robert I. Woodward, Edmund J R Kelleher, Felice Torrisi, Guohua Hu, Sergei V. Popov, J. Roy Taylor, Tawfique Hasan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

215 Citations (Scopus)

Abstract

We fabricate a free-standing few-layer molybdenum disulfide (MoS2)-polymer composite by liquid phase exfoliation of chemically pristine MoS2 crystals and use this to demonstrate a wideband tunable, ultrafast mode-locked fiber laser. Stable, picosecond pulses, tunable from 1,535 nm to 1,565 nm, are generated, corresponding to photon energies below the MoS2 material bandgap. These results contribute to the growing body of work studying the nonlinear optical properties of transition metal dichalcogenides that present new opportunities for ultrafast photonic applications. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1522-1534
Number of pages13
JournalNano Research
Volume8
Issue number5
DOIs
Publication statusPublished - 18 May 2015
Externally publishedYes

Keywords

  • liquid phase exfoliation
  • molybdenum disulfide
  • polymer composites
  • saturable absorbers
  • two-dimensional materials
  • ultrafast lasers

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