Narrowband pulsed THz source using eyesafe region fiber lasers and a nonlinear crystal

Matthew A. Leigh, Wei Shi, Jie Zong, Zhidong Yao, Shibin Jiang, Nasser Peyghambarian

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We report a high-power single-frequency fiber laser system in the eyesafe wavelength region that pumps a GaSe crystal through difference frequency generation, producing narrowband terahertz (THz). Two single-frequency continuous-wave fiber seed lasers are modulated, then amplified with a three-stage single-mode amplifier. The resulting pulses are transform-limited and high power, producing a peak THz power of 26.4 mW with narrow linewidth. This is significantly higher than earlier THz sources based on narrowband fiber lasers in the eyesafe region.

Original languageEnglish (US)
Pages (from-to)27-29
Number of pages3
JournalIEEE Photonics Technology Letters
Volume21
Issue number1
DOIs
StatePublished - Dec 1 2009

Keywords

  • Nonlinear optics
  • Optical fiber amplifiers
  • Optical fibers
  • Single-frequency lasers
  • Teraherz (THz) generation

ASJC Scopus subject areas

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

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