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We report on measurements of phase noise dynamics of microwave beat notes observed in low repetition rate silicon nitride based Kerr-comb generators and relate them to results from dispersion simulations and measurements.
We experimentally investigate the initial dynamics of Kerr-frequency comb formation in crystalline MgF2 and planar Si3N4 microresonator and present a universal, platform independent condition for low phase noise performance.
We present for the first time mid-infrared frequency comb generation from micro-resonators. Combs spanning over more than 10 THz around the 2.5 μm-wavelength CW-pump are generated in crystalline MgF2 whispering-gallery mode resonators via four-wave-mixing.
The development of high finesse resonators for broadband frequency combs enabled the extension of the versatile frequency comb technique into the extreme ultraviolet with all its implications. We describe new developments in this field.
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