06381045 is referenced by 12 patents.

Dual concentric core fiber is used for optical communication. Inbound messages lying in a first wavelength channel are received from a terminal portion of the fiber, and outbound messages lying in a second such channel are injected into the terminal portion. The optical fiber has at least one annular portion surrounding a central core portion. The inbound messages are received from the annular portion, and the outbound messages are injected into the central core portion. Alternatively, the inbound messages are received from the central core portion, and the outbound messages are injected into the annular portion.

Title
Method and apparatus for bidirectional communication over a single optical fiber
Application Number
9/103925
Publication Number
6381045 (B1)
Application Date
June 24, 1998
Publication Date
April 30, 2002
Inventor
Mujibun Nisa Khan
Holmdel
NJ, US
Bernard Raymond Eichenbaum
Basking Ridge
NJ, US
David John DiGiovanni
Montclair
NJ, US
Assignee
Lucent Technologies
NJ, US
IPC
H04J 14/02
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