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Gold nanorod saturable absorber for passive mode-locking at 1 μm wavelength

  • Z. Kang
  • , Q. Li
  • , X. J. Gao
  • , L. Zhang
  • , Z. X. Jia
  • , Y. Feng
  • , G. S. Qin
  • , W. P. Qin

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

Gold nanorods (GNRs) were used as a saturable absorber (SA) for passive mode-locking at 1 μm wavelength. The GNR-SA film was fabricated by mixing GNRs with sodium carboxymethylcellulose. The longitudinal surface plasmon resonance absorption of GNRs was used to induce mode-locking. By using the GNR-SA film, stable passive mode-locking at 1039 nm was experimentally demonstrated in an ytterbium-doped fiber laser cavity pumped by a 980 nm laser diode. The laser produced ∼440 ps pulses with a repetition rate of 36.6 MHz and an average output power of ∼1.25 mW for a pump power of ∼82 mW.

Original languageEnglish
Article number035102
JournalLaser Physics Letters
Volume11
Issue number3
DOIs
StatePublished - Mar 2014
Externally publishedYes

Keywords

  • fiber lasers
  • laser materials
  • modelocking

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