Ho3+-Doped All-Fiber Laser Q-Switched by D-Shaped Fiber Carbon-Nanotube Saturable Absorber

Shijie Fu, Xiushan Zhu, Minghong Tong, Masoud Mollaee, Kort Wiersma, Khawlah Alyahyaei, Jie Zong, Arturo Chavez, Nasser Peyghambarian

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


D-shaped fiber deposited with single-wall carbon-nanotubes was used as fiber-optic saturable absorber to achieve Q-switched Ho3+-doped fluoride fiber laser in all-fiber configuration with superior compactness and reliability. Stable Q-switched operation at 1192 nm was established at the pump power of 290 mW. When the pump power was increased to 1280 mW, Q-switched laser with a pulse duration of 1.1 μ s and pulse energy of 0.11 μ at a repetition rate of 127 kHz was obtained. This all-fiber laser exhibits high stability with a radio-frequency signal-to-noise ratio >50 dB.

Original languageEnglish (US)
Article number8890795
Pages (from-to)1960-1963
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number24
StatePublished - Dec 15 2019


  • Fiber laser
  • Q-switched
  • carbon nanotube
  • fluoride fiber

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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