Passively gain-switched and self mode-locked thulium fiber laser at 1950 nm

Hong Xi Tsao, Chun Hsiang Chang, Shih Ting Lin, Jinn Kong Sheu, Tzong Yow Tsai

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


We propose and demonstrate a CW-pumped, passively gain-switched and self-mode-locked thulium fiber laser at 1950 nm. In the system, a thulium fiber served as a saturable absorber Q-switch in a 980 nm pumped erbium fiber resonator and was intra-cavity excited by the self-induced Q-switching resonance at 1570 nm. A coupled 1950 nm resonator including the gain-switched thulium fiber was self mode-locked with a pump threshold of 70 mW. The mode-locked pulses had a maximum peak power of 250 W and a pulse duration of 720 ps.

Original languageEnglish
Pages (from-to)354-357
Number of pages4
JournalOptics and Laser Technology
Publication statusPublished - 2014 Jan 1

All Science Journal Classification (ASJC) codes

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

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