Dispersion measurement techniques

The dynamics of Kerr frequency combs strongly depend on the dispersion of the microresonator. Bright dissipative Kerr solitons for example can only form with sufficient anomalous group velocity dispersion. Therefore the measurement of the dispersion is an important characterization step and by now there are a few different techniques in use in different groups with different advantages and disadvantages. Here I briefly summarize the techniques that are known to me and give some references.

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