Saturable absorber incorporating graphene oxide polymer composite through dip coating for mode-locked fiber laser

E. K. Ng, K. Y. Lau, H. K. Lee, M. H. Abu Bakar, Y. Mustapha Kamil, M. F. Omar, M. A. Mahdi*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Fabrication of microfiber saturable absorbers (SA) is a tedious process. This work demonstrates a simplified method of microfiber SA fabrication by integrating graphene oxide/polymethylsiloxane (GO/PDMS) using dip-coating technique. The idea is to enhance light-matter interaction between graphene and propagating light modes within the microfiber by enhancing the binding strength and proximity of the graphene-polymer composite to the microfiber. The implementation of GO/PDMS SA in an erbium-doped fiber laser cavity has successfully generated ultrashort pulses with pulse duration of 629 fs in the C-band emission region. The success of this work contributes to better insight towards simplifying the fabrication technique of microfiber SAs.

Original languageEnglish
Article number109619
JournalOptical Materials
Volume100
DOIs
Publication statusPublished - 1 Feb 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • fiber lasers
  • Microfiber
  • Optical pulses
  • Saturable absorber

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