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

11 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
Number of pages8
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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