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Updated: Jul 14, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Coherent and incoherent spectral broadening in a photonic crystal fiber
C Gross1, Th Best, D van Oosten
1Johannes Gutenberg-Universität, Staudingerweg 7, D-55128 Mainz, Germany.
Abstract:
The coherence of the spectral broadening process is the key requisite for the application of supercontinua in frequency combs. We investigate the coherence of two subsequent supercontinuum pulses created in a photonic crystal fiber pumped by a femtosecond laser. We measure Young interference fringes from a Michelson-type interferometer at different wavelengths of the output spectrum and analyze their dependence on pump intensity and polarization. The visibility of these fringes is a direct measure of the coherence of the spectral broadening processes.
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