Hybrid bi-directional three color wave division multiplexer and

Details Hybrid bi-directional three color wave division multiplexer and Hybrid bi-directional three color wave division multiplexer and

1996-12-09

1998-01-27

Healy, Brian

Optical waveguides

With optical coupler

Plural

385 15, 385 16, 385 31, 385 39, 385 42, 385 44, 385 46, 359114, 359115, 359124, 359127, G02B 628, H04J 1402

Patent

active

057129363

ABSTRACT:
A hybrid, bi-directional, three-color, wave-division multiplexer (HB3-WDM), fiber optic communication system employs a combination of wide band and narrow band WDMs to multiplex three pairs of optic signals over two fiber optic cables. The three pairs of signals include two pairs in a range centered about 1550 nm and one pair in a range centered about 1330 nm. In one embodiment, modularized HB3-WDMs are used to modify a pre-existing, multi-cable, bi-directional, two-color WDM system. The modified system communicates thirty percent more data while maintaining pre-existing signal attenuation levels and pre-existing back-up capabilities.

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