A new design of low-loss and ultra-flat zero dispersion photonic crystal fiber using hollow ring defect

New hollow ring defect structure is introduced in photonic crystal fiber design for ultra- flat zero dispersion with very low waveguide losses. The hollow ring defect consisted of a central hole surrounded by a doped silica ring provides highly flexible defect engineering capabilities in photonic cr...

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Bibliographic Details
Published in:Optics communications 2012-09, Vol.285 (20), p.4082-4087
Main Authors: Lee, Sejin, Ha, Woosung, Park, Jiyoung, Kim, Soan, Oh, Kyunghwan
Format: Article
Language:English
Subjects:
Bending loss
Confinement loss
Optical waveguide design
Photonic crystal fibers
Splice loss
Zero dispersion
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Summary:New hollow ring defect structure is introduced in photonic crystal fiber design for ultra- flat zero dispersion with very low waveguide losses. The hollow ring defect consisted of a central hole surrounded by a doped silica ring provides highly flexible defect engineering capabilities in photonic crystal fibers to achieve precise control of dispersion value and dispersion slope while independently maintaining low waveguide losses, which was not attainable in previous designs. A nearly flat zero dispersion of D=0±0.51ps/nmkm was obtained in the wavelength range of 1.44–1.61μm with the maximum slope of −2.7×10−2ps/nm2km. The confinement loss was less than 5.75×10−8dB/m along with the bending loss of 2.8×10−6dB/m for the radius of 10mm, and splice loss of less than 1.57dB to conventional single mode fiber at 1.55μm.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2012.05.063