Optical fiber tape of low polarization mode dispersion...

Details Optical fiber tape of low polarization mode dispersion... Optical fiber tape of low polarization mode dispersion...

2007-04-24

2007-04-24

Font, Frank G. (Department: 2883)

Optical waveguides

Optical transmission cable

Ribbon cable

C385S128000, C385S141000

Reexamination Certificate

active

11075877

ABSTRACT:
An optical fiber tape having low polarization mode dispersion characteristics and applied to a dense wavelength multiplex (DWDM) transmission system of a transmission rate from several Gb/s to several tens of Gb/S. We have found out that the polarization mode dispersion of an optical fiber tape relates to the loss tangent (tan δ) determined when the dynamic viscoelasticity is measured, and that particularly, if the loss tangent of when a dispersion shift fiber is used is made 0.080 or more and the loss tangent of when a single mode optical fiber is used is made 0.042 or more, the polarization mode coefficient of dispersion (PMD) is reduced to 0.3 ps/√km preferable to realize a DWDM transmission system.

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