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Proceedings Paper

Spectral flattening of supercontinua with a spatial light modulator
Author(s): R. A. Probst; T. Steinmetz; T. Wilken; G. K. L. Wong; H. Hundertmark; S. P. Stark; P. St. J. Russell; T. W. Hänsch; R. Holzwarth; Th. Udem
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Paper Abstract

We demonstrate the generation of broad spectra with a flat intensity distribution from originally highly structured supercontinua, obtained with femtosecond pulses in a photonic crystal fiber. This is accomplished by truncating the spectra at a constant level using a liquid crystal based spatial light modulator. The technique is useful for astronomical spectrograph calibration using frequency combs, where it allows to equalize the optical power of the calibration lines. This enables an improved calibration accuracy by maximizing each line’s signal-to-noise ratio.

Paper Details

Date Published: 26 September 2013
PDF: 8 pages
Proc. SPIE 8864, Techniques and Instrumentation for Detection of Exoplanets VI, 88641Z (26 September 2013); doi: 10.1117/12.2036601
Show Author Affiliations
R. A. Probst, Max-Planck-Institut für Quantenoptik (Germany)
T. Steinmetz, Max-Planck-Institut für Quantenoptik (Germany)
Menlo Systems GmbH (Germany)
T. Wilken, Max-Planck-Institut für Quantenoptik (Germany)
G. K. L. Wong, Max-Planck-Institut für die Physik des Lichts (Germany)
H. Hundertmark, Menlo Systems GmbH (Germany)
S. P. Stark, Max-Planck-Institut für die Physik des Lichts (Germany)
P. St. J. Russell, Max-Planck-Institut für die Physik des Lichts (Germany)
T. W. Hänsch, Max-Planck-Institut für Quantenoptik (Germany)
R. Holzwarth, Max-Planck-Institut für Quantenoptik (Germany)
Menlo Systems GmbH (Germany)
Th. Udem, Max-Planck-Institut für Quantenoptik (Germany)


Published in SPIE Proceedings Vol. 8864:
Techniques and Instrumentation for Detection of Exoplanets VI
Stuart Shaklan, Editor(s)

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