Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2006-02-21
2006-02-21
Pascal, Leslie (Department: 2633)
Optical communications
Multiplex
Wavelength division or frequency division
C398S081000
Reexamination Certificate
active
07003226
ABSTRACT:
In a wavelength division multiplexed optical transmission system wherein the zero dispersion wavelength of the optical fiber transmission path224is in the 1550 nm region, among multiplexed optical signals, the wavelengths of either of at least two optical signals are allocated between 1450 nm and 1530 nm, or between 1570 nm and 1650 nm.
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Aisawa Shigeki
Jinno Masahiko
Kani Jun-ichi
Norimatsu Seiji
Sakamoto Tadashi
Day Jones
Nippon Telegraph and Telephone Corporation
Pascal Leslie
Singh Dalzid
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