Mid-infrared frequency comb with 6.7 W average power based on difference frequency generation

Abstract

We report on the development of a high-power mid-infrared frequency comb with 100 MHz repetition rate and 100 fs pulse duration. Difference frequency generation is realized between two branches derived from an Er:fiber comb, amplified separately in Yb:fiber and Er:fiber amplifiers. Average powers of 6.7 W and 14.9 W are generated in the 2.9 $\mu$m idler and 1.6 $\mu$m signal, respectively. With high average power, excellent beam quality, and passive carrier-envelope phase stabilization, this light source is a promising platform for generating broadband frequency combs in the far infrared, visible, and deep ultraviolet.

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Cited by in corpus (6)

• ${\chi }^{(2)}$ mid-infrared frequency comb generation and stabilization with few-cycle pulses
• Broadband ultraviolet-visible frequency combs from cascaded high-harmonic generation in quasi-phase-matched waveguides
• Widely tunable cavity-enhanced frequency combs
• Two-octave-wide (3-12 μm) mid-infrared frequency comb produced as an optical subharmonic in a nondispersive cavity
• Controlling rotationally-resolved two-dimensional infrared spectra with polarization
• Theory of rotationally resolved two-dimensional infrared spectroscopy including polarization dependence and rotational coherence dynamics