4.4–5.2 μm wavelength tunable, coherent MIR frequency comb generation based on Yb-doped fiber laser

摘要

Offset free, 4.4-5.2 μm wavelength tunable, mid-infrared optical frequency comb was generated through DFG pumped by Yb-doped fiber laser system. Coherence verification was performed by beat-note measurement using quantum cascade laser.