Abstract

We correct the values of the group delay dispersion of the cavity mirrors and N2, as well as the concentration of CO2, obtained from the measurement of the center frequencies of cavity modes using a comb-based Fourier transform spectrometer. The corrected values of group delay dispersion are a factor of 3 higher, which implies that the precision and accuracy of the dispersion measurements is 0.3 fs2 and 3 fs2, respectively.

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References

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  1. L. Rutkowski, A. C. Johansson, G. Zhao, T. Hausmaninger, A. Khodabakhsh, O. Axner, and A. Foltynowicz, “Sensitive and broadband measurement of dispersion in a cavity using a Fourier transform spectrometer with kHz resolution,” Opt. Express 25(18), 21711–21718 (2017).
    [Crossref]

2017 (1)

Axner, O.

Foltynowicz, A.

Hausmaninger, T.

Johansson, A. C.

Khodabakhsh, A.

Rutkowski, L.

Zhao, G.

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Figures (1)

Fig. 1.
Fig. 1. Group delay dispersion (GDD) of the empty cavity (black solid curve), and the cavity filled with pure N2 at 750 Torr (red solid curve). The dashed curve is the sum of the GDD of N2 calculated using the Sellmeier equation and the experimentally determined empty cavity GDD (dashed black curve).

Equations (1)

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GDD ( ν q 0 ) 1 4 π 2 2 Φ ν 2 = 1 2 π FS R ref 2 Δ ν ν 2 .

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