Method for remodulating an optical stream with independent data

Details Method for remodulating an optical stream with independent data Method for remodulating an optical stream with independent data

2006-09-05

2006-09-05

Leung, Christina Y. (Department: 2613)

Optical communications

Transmitter

Including specific optical elements

C398S090000, C398S176000

Reexamination Certificate

active

07103287

ABSTRACT:
A method and apparatus for remodulating an optical data stream such that a second modulated data stream is optically transported along with a first modulated data stream. In one embodiment, an optical signal having modulated thereon a first data stream is split into a plurality of reduced power optical signals, wherein at least one of the reduced power optical signals is remodulated to additionally include a second data stream. The first data stream is preferably Manchester encoded, the data rate of the second data stream is preferably one half the data rate of the first data stream.

REFERENCES:
patent: 4451827 (1984-05-01), Kahn et al.
patent: 5751455 (1998-05-01), Shibutani et al.
patent: 5815295 (1998-09-01), Darcie et al.
patent: 6359951 (2002-03-01), Morriss et al.

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