Astronomical spectrograph calibration with broad-spectrum frequency combs

Abstract

Broadband femtosecond-laser frequency combs are filtered to spectrographically resolvable frequency-mode spacing, and the limitations of using cavities for spectral filtering are considered. Data and theory are used to show implications to spectrographic calibration of high-resolution, astronomical spectrometers.

References in corpus (2)

• A laser frequency comb that enables radial velocity measurements with a precision of 1 cm s${}^{-1}$
• High-precision wavelength calibration of astronomical spectrographs with laser frequency combs

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