ROBUST AND COMPACT
Frequency combs in the molecular finger-print region have enabled applications in metrology, spectroscopy and medicine. All these applications benefit from higher average powers that allow for faster acquisition rates and an improved signal-to-noise ratio. This extension complements the compact 50fs-thulium-doped ultrafast fiber laser system and provides a high-power frequency comb in the mid-IR.
The ultrafast mid-IR pulses are achieved through intra-pulse difference-frequency generation, which guarantees passive carrier-envelope-offset stability. The complete frequency-comb nature of the source can be achieved by controlling and stabilizing the fundamental pulse-repetition frequency of the driving laser.
|Central wavelength||5 - 18 µm (tunable)|
|Pulse repetition rate||20MHz (others on request)|
|Average power||up to 100 mW|
|Beam quality||close to diffraction-limited (M2<1.3)|
|Average power stability||< 1% RMS|
|Pulse energy stability||< 1% RMS|
|Beam pointing||< 10 µrad|
|Addional features||Turnkey reliability, temperature-stabilized and dust-sealed housing|
Measured Mid-IR spectrum in publication of collaborators