Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2006-04-18
2006-04-18
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S024000, C385S126000, C398S081000, C398S158000
Reexamination Certificate
active
07031581
ABSTRACT:
In a wavelength division multiplexed transmission path, the used waveband can be selected from the widest possible waveband among the S-band, C-band, and L-band. The wavelength division multiplexed transmission path has a dispersion-compensating transmission path comprising a dispersion-shifted fiber, which has positive chromatic dispersion throughout a range of wavelengths from 1460 nm to 1630 nm, and one type of dispersion-compensating fiber, or two or more types of dispersion-compensating fiber having different chromatic dispersion having negative chromatic dispersion in a compensation waveband, selected from the abovementioned range; the residual chromatic dispersion of the wavelength division multiplexed transmission path is adjusted so as to be greater than −1.0 ps
m/km or equal to and less than or equal to +1.0 ps
m/km in a used waveband of the wavelength division multiplexed transmission path, which is selected from the abovementioned range.
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Aikawa Kazuhiko
Matsuo Shoichiro
Saitou Manabu
Bell Boyd & Lloyd LLC
Fujikura Ltd.
Petkovsek Daniel
Ullah Akm Enayet
LandOfFree
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