Abstract

A novel all-solid Bragg fiber composed entirely of silica material is proposed in this paper. The core of this Bragg fiber is composed of conventional silica, and the cladding is formed by a set of alternating layers of up-doped and down-doped silica. This all-solid silica Bragg fiber is technically feasible and can simplify the fabrication technique. Dispersion properties of this silica Bragg fiber are investigated, and simulations show that zero dispersion wavelength λ 0 near 1.55 μm with nonlinear coefficient γ about 50 W-1km-1 can be obtained in silica Bragg fiber.

© 2004 Optical Society of America

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References

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J. Lightwave Technol. (1)

J. Opt. Soc. Am. (1)

Nature (1)

J. C. Knight, �??Photonic Crystal Fibres,�?? Nature 424, 847, (2003)
[CrossRef] [PubMed]

OFC (2)

T. Katagiri, Y. Matsuura, and M. Miyagi, �??Fabrication of silica-core photonic bandgap fiber with multilayer cladding,�?? Optical Fiber Communication Conference 2004, WI1

T.P. Hansen, J. Broeng, T.P. Hansen and A. Bjarklev, �??Solid-Core Photonic Bandgap Fiber with Large Anormalous Dispersion,�?? Optical Fiber Communication Conference 2003, FI6

Opt. Express (3)

Science (2)

S.D. Hart et al., �??External Reflection from Omnidirectional Dielectric Mirror Fibers,�?? Science 296, 510 (2002).
[CrossRef] [PubMed]

P. Russell, �??Photonic Crystal Fibers,�?? Science 299, 358, (2003).
[CrossRef] [PubMed]

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Figures (6)

Fig. 1.
Fig. 1.

Schematic diagram of all-solid silica Bragg fiber (a) cross section (b) refractive index profile.

Fig. 2.
Fig. 2.

Modal field pattern of the fundamental mode (HE11) in all-solid silica Bragg fiber with nC=nS, r0 =0.5 μm, Λ = 1.6 μm and a = 0.8 μm. Units of axes are in μm and λ = 1.55 μm.

Fig. 3.
Fig. 3.

Effective indices (neff = β/k) for defect modes in all-solid silica Bragg fiber with a/Λ=0.50. The down-doped defect modes from top are for down-doping level of 0.5%, 1%, and 1.5%, respectively.

Fig. 4.
Fig. 4.

Dispersion of all-solid silica Bragg fiber with r0= 0.5 μm, Λ= 1.6μm and a/Λ=0.50 for different down-doped levels: 0.5% (black), 1% (red), and 1.5% (green).

Fig. 5.
Fig. 5.

Dispersion of all-solid silica Bragg fiber (a) Λ= 1.6μm with a/Λ=0.40 (black), a/Λ=0.50 (red), and a/Λ=0.60 (green), (b) a/Λ=0.50 with Λ= 1.2μm (black), Λ= 1.6μm (red), and Λ= 2μm (green).

Fig. 6.
Fig. 6.

Dispersion of high nonlinear all-solid silica Bragg fiber with λ 0 around 1.55 μm.

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