- Other Conference Item
A fully stabilized optical frequency comb provides equally spaced frequencies for a precise ruler in optical frequency metrology. This talk will review recent progress in dual-comb generation from diode pumped solid-state and vertical emitting semiconductor lasers. In dual-comb modelocked operation, the initially unpolarized beam is split with an intracavity birefringent crystal. A mode-locked integrated external-cavity surface-emitting laser (MIXSEL) integrates both the gain and the saturable absorber layer within the same semiconductor wafer which simplifies the laser geometry to a linear straight cavity with excellent noise performance. A dual-comb gigahertz optically pumped MIXSEL has been used for molecular spectroscopy and lidar applications without the need of any additional stabilization. More recently a dual-comb diode-pumped Yb:CaF2 laser has been demonstrated at 140 MHz. For lidar applications we compare both lasers demonstrating micron precision over a potential ambiguity range of multi-kilometers and multi-kilohertz update rates. Show more
Book titleFrontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI
Journal / seriesProceedings of SPIE
Pages / Article No.
Organisational unit03371 - Keller, Ursula / Keller, Ursula
MoreShow all metadata