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 language | English (US) |
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Pages (from-to) | 27-29 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 21 |
Issue number | 1 |
DOIs | |
State | Published - 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