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Opt Lett. 2003 May 15;28(10):783-5.

Doped photonic bandgap fibers for short-wavelength nonlinear devices.

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  • 1Research Center COM, Technical University of Denmark, Building 345v, DK-2800 Kgs. Lyngby, Denmark.


Microstructured photonic bandgap fibers with a doped honeycomb cladding structure and the guiding defect defined by the absence of doping are proposed as nonlinear optical fibers for short wavelengths. It is shown that zero-dispersion wavelengths below 500 nm and corresponding effective areas of 1-2 microm2 can be obtained if structures with interhole distances near 600 nm can be fabricated. The cutoff wavelength for guidance of second-order modes can be controlled by variation of the radius and index contrast of the doped regions.

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