Measurement of group-velocity dispersion of Bloch modes in photonic-crystal-fiber rocking filters

We use low-coherence interferometry to measure the group-velocity dispersion (GVD) of the fast and slow Bloch modes of structural rocking filters, produced by twisting a highly birefringent photonic crystal fiber to and fro while scanning a focused CO(2) laser beam along it. The GVD curves in the vi...

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Bibliographic Details
Published inOptics letters Vol. 35; no. 23; p. 3982
Main Authors Wong, G K L, Zang, L, Kang, M S, Russell, P St J
Format Journal Article
LanguageEnglish
Published United States 01.12.2010
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Summary:We use low-coherence interferometry to measure the group-velocity dispersion (GVD) of the fast and slow Bloch modes of structural rocking filters, produced by twisting a highly birefringent photonic crystal fiber to and fro while scanning a focused CO(2) laser beam along it. The GVD curves in the vicinity of the resonant wavelength differ dramatically from those of the unperturbed fiber, suggesting that rocking filters could be used in the optimization of, e.g., four-wave mixing and supercontinuum generation. Excellent agreement is obtained between theory and experiment.
ISSN:1539-4794
DOI:10.1364/OL.35.003982