Abstract
We demonstrate the use of a bi-directional mode-locked thulium doped fiber ring laser as a single cavity free-running dual-comb source. We consider the effect of group-velocity dispersion on the repetition rate difference between the two combs and demonstrate a tunable repetition rate difference from 48-229 Hz. Dual-comb spectroscopy of atmospheric H2O near 1.87 μm is performed over a 1.47-m air path in laboratory with a peak single-shot signal-to-noise ratio of 27.5.
Original language | English (US) |
---|---|
Article number | 8456546 |
Pages (from-to) | 1772-1775 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 30 |
Issue number | 20 |
DOIs | |
State | Published - Oct 15 2018 |
Keywords
- Fiber lasers
- atmospheric measurements
- fiber nonlinear optics
- infrared spectra
- laser applications
- optical fibers
- optical sensors
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering