Optical fiber, and optical transmission line and optical...

Details Optical fiber, and optical transmission line and optical... Optical fiber, and optical transmission line and optical...

2004-07-13

2008-03-04

Kim, Ellen E. (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

Reexamination Certificate

active

07340141

ABSTRACT:
Disclosed is an optical fiber suitable for an optical transmission line used in WDM system, particularly a single-mode optical fiber whose zero-dispersion wavelength is positioned in a short wavelength band (less than 1,370 mm) so as to enable high-speed mass-storage signal transmission over S-C-L bands (1,460˜1,625 nm) and whose dispersion value and effective sectional area are optimized. In the optical fiber, a dispersion value is at least 9 ps
m-km at 1,460 nm, an effective sectional area is 45-65 μm2at 1,460 rim, a zero-dispersion wavelength exists at 1,370 nm or less, and a dispersion slope is positive. In addition, RDS (Relative Dispersion Slope) is 0.0032˜0.0038 nm−1at 1,550 nm. Thus, the optical fiber enables to repress non-linearity and signal distortion to the maximum during 320 km repeaterless transmission with a transmission rate of 10 Gb/s or more over S-C-L bands, a channel spacing of 50 GHz or less, 16 channels, and a signal power of 0 dBm/ch or 2 dBm/ch.

REFERENCES:
patent: 6396987 (2002-05-01), de Montmorillon et al.
patent: 6618532 (2003-09-01), Sasaoka et al.
patent: 6633714 (2003-10-01), de Montmorillon et al.
patent: 2002/0067903 (2002-06-01), Fleury et al.
patent: 2003/0063878 (2003-04-01), Matsuo et al.
patent: 01-169410 (1989-07-01), None

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