978 nm single frequency actively Q-switched all fiber laser

Qiang Fang, Wei Shi, Xueping Tian, Bo Wang, Jianquan Yao, Nasser Peyghambarian

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


A single-frequency actively Q-switched all-fiber laser at 978 nm was developed using a 2-cm-long commercial ytterbium-doped silica fiber and a pair of silica-fiber-based Bragg gratings. The Q-switching is enabled by the stress-induced polarization modulation in the short linear fiber laser cavity. The laser generates actively Q-switched single-frequency laser pulses with a pulse repetition rate ranging from tens of kilohertz to hundreds of kilohertz. The pulse duration and the average/peak power have been characterized. This is, to the best of our knowledge, the first demonstration of a single-frequency all-fiber Q-switched laser below 1 μm using commercial highly ytterbium-doped silica fiber.

Original languageEnglish (US)
Article number6758373
Pages (from-to)874-876
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number9
StatePublished - May 1 2014


  • 978 nm silica fiber laser
  • Single frequency
  • actively Q-switch

ASJC Scopus subject areas

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


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