We present an echelle spectrograph that is optimized for characterization of frequency combs for astronomical applications (astro-combs). In spite of its very compact and cost-efficient design, it allows viewing the spectrum of a frequency comb in nearly the same way as a full-sized high-resolution echelle spectrograph as used at astronomical observatories. This is of great value for testing and characterizing astro-combs during their assembly phase. The spectrograph can further be utilized to effectfully demonstrate the remarkable capabilities of astro-combs.
CITATION STYLE
Probst, R. A., Steinmetz, T., Wu, Y., Grupp, F., Udem, T., & Holzwarth, R. (2018). A compact echelle spectrograph for characterization of astro-combs. In Exploring the World with the Laser: Dedicated to Theodor Hänsch on his 75th Birthday (pp. 433–446). Springer International Publishing. https://doi.org/10.1007/978-3-319-64346-5_25
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