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14 GHz visible supercontinuum generation: calibration sources for astronomical spectrographs

MPS-Authors
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Stark,  S. P.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Hundertmark,  H.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  P. St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Stark, S. P., Steinmetz, T., Probst, R. A., Hundertmark, H., Wilken, T., Haensch, T. W., et al. (2011). 14 GHz visible supercontinuum generation: calibration sources for astronomical spectrographs. OPTICS EXPRESS, 19(17), 15690-15695. doi:10.1364/OE.19.015690.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-69A5-7
Abstract
We report the use of a specially designed tapered photonic crystal fiber to produce a broadband optical spectrum covering the visible spectral range. The pump source is a frequency doubled Yb fiber laser operating at a repetition rate of 14 GHz and emitting sub-5 pJ pulses. We experimentally determine the optimum core diameter and achieve a 235 nm broad spectrum. Numerical simulations are used to identify the underlying mechanisms and explain spectral features. The high repetition rate makes this system a promising candidate for precision calibration of astronomical spectrographs. (C) 2011 Optical Society of America