Dispersion-shifted fiber

Details Dispersion-shifted fiber Dispersion-shifted fiber

1997-01-15

1998-02-24

Ngo, John

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385141, 385142, 385144, G02B 610

Patent

active

057218005

ABSTRACT:
The present invention relates to a dispersion-shifted fiber having a structure for effectively lowering polarization-mode dispersion. This dispersion-shifted fiber is a single-mode optical fiber mainly composed of silica glass and has a zero-dispersion wavelength set within the range of at least 1.4 .mu.m but not longer than 1.7 .mu.m. In particular, at least the whole core region of the dispersion-shifted fiber contains fluorine.

REFERENCES:
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patent: 5327516 (1994-07-01), Chraplyvy et al.
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patent: 5504829 (1996-04-01), Evans et al.
patent: 5568583 (1996-10-01), Akasaka et al.
Namihira, "Relationship Between Nonlinear Effective Area and Modefield Diameter for Dispersion Shifted Fibres", Electronics Letters, vol. 30, No. 33, Feb. 1994, pp. 262-264.
Ogai et al, "Development and Performance of Fully Fluorine-Doped Single-Mode Fibers", Journal of Lightwave Technology, vol. 6, No. 10, Oct. 1988.
Tewari et al, "Dispersion-Shifted Dual-Shape Core Fibers: Optimization Based on Spot Size Definitions", Journal of Lightwave Technology, vol. 10, No. 1, Jan. 1992, pp. 1-5.

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