An all fiberized, 1.89-μm Q-switched laser employing carbon nanotube evanescent field interaction

M. Jung, J. Koo, Y. M. Chang, P. Debnath, Y. W. Song, J. H. Lee

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

An all-fiber-integrated, Q-switched thulium-doped fiber laser based on carbon nanotube (CNT) evanescent field interaction is experimentally demonstrated. It is shown that a saturable absorber based on a CNT-deposited D-shaped fiber can readily be incorporated into a thulium-doped fiber ring cavity for a passive Q-switching operation at a wavelength of ~1.89 μm. Using the laser scheme stable Q-switched pulses with a temporal width of ~7.155 μs could be obtained at a repetition rate of 14.18 kHz. The temporal stability of the output pulses was also investigated.

Original languageEnglish
Pages (from-to)669-673
Number of pages5
JournalLaser Physics Letters
Volume9
Issue number9
DOIs
StatePublished - 2012

Keywords

  • Fiber lasers
  • Laser materials
  • Optical properties of nanotubes
  • Q-switching

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