A dual-comb spectrometer based on a pair of ultra-broadband optical parametric oscillators is demonstrated. It provides the simultaneous acquisition of 350,000 spectral data points, spaced by a 115 MHz intermodal interval over the 3.1–5.5 µm spectral range.
- A. V. Muraviev
- V. O. Smolski
- K. L. Vodopyanov