Abstract
We report on a mid-IR frequency comb source of unprecedented tunability covering the entire 3-10 μm molecular fingerprint region. The system is based on difference frequency generation in a GaSe crystal pumped by a 151 MHz Yb:fiber frequency comb. The process was seeded with Raman-shifted solitons generated in a highly nonlinear suspended-core fiber with the same source. Average powers up to 1.5 mW were achieved at the 4.7 μm wavelength. © 2012 Optical Society of America.
Original language | English |
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Pages (from-to) | 2232-2234 |
Journal | Optics Letters |
Volume | 37 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2012 |