Zinc-oxide/PDMS-clad tapered fiber saturable absorber for passively mode-locked erbium-doped fiber laser

F. D. Muhammad*, S. A. S. Husin, E. K. Ng, K. Y. Lau, C. A. C. Abdullah, M. A. Mahdi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We propose and demonstrate a passively mode-locked erbium-doped fiber laser (EDFL) based on zinc-oxide/polydimethylsiloxane (ZnO/PDMS) saturable absorber (SA) that evanescently interacts with the light on a tapered fiber. The ZnO/PDMS composite is coated on the whole surface of the tapered fiber to guarantee the maximum efficiency of the SA device, with a measured insertion loss of 0.87 dB and a modulation depth of 6.4%. The proposed laser can generate soliton mode-locking operation at a threshold power of 33.07 mW. The generated output pulse yields a repetition rate and pulse width of 9.77 MHz and 1.03 ps, respectively. These results indicate that the proposed ZnO/PDMS-clad tapered fiber could be useful as an efficient, compatible, and low-cost SA device for ultrafast laser applications.

Original languageEnglish
Article number054204
Number of pages6
JournalCHINESE PHYSICS B
Volume30
Issue number5
DOIs
Publication statusPublished - May 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • fiber laser
  • mode-locked
  • saturable absorber
  • tapered fiber
  • zinc-oxide

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