Abstract

Photonic crystal fibers are highly attractive as nonlinear media as they combine a large nonlinear coefficient and a highly ustomizable zero dispersion wavelength - flexibility not found in any other medium. However, the high dispersion slope at the zero-dispersion wavelength demonstrated so far is very limiting to the useful bandwidth. We propose a new fiber design comprising a hybrid core-region with three-fold symmetry that enables unprecedented dispersion control while maintaining low loss and a high nonlinear coefficient. The lowest dispersion slope obtained is 1·10-3ps/(km·nm2) or one order of magnitude lower than for conventional slope reduced nonlinear fibers. The nonlinear coefficient is more than 11 (W·km)-1 and loss below 7.9 dB/km at 1.55 µm has been achieved.

© 2003 Optical Society of America

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History
Original Manuscript: May 28, 2003
Revised Manuscript: June 13, 2003
Published: June 30, 2003

References

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Author Affiliations

K. Hansen

Crystal Fibre A/S

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