Preventing signal loss in an optical communications network

Details Preventing signal loss in an optical communications network Preventing signal loss in an optical communications network

2007-05-01

2007-05-01

Vanderpuye, Kenneth (Department: 2613)

Optical communications

Fault recovery

Bypass inoperative element

C398S005000, C398S017000, C398S170000

Reexamination Certificate

active

10422926

ABSTRACT:
A redundant optical signal transmission and reception system enables information exchange via an optical communications network without data loss in the event of optical transmitter or receiver failure. In one embodiment, the redundant optical signal system includes a primary transmission link comprising a plurality of optical transmitters and a multiplexor for modulating and combining electrical signals into a primary multiplexed optical signal. In the event of failure of an optical transmitter, a backup transmission link is activated to compensate for the malfunctioning transmitter. The backup transmission link utilizes a backup optical transmitter to modulate the electric signal formerly received by the malfunctioning optical transmitter. The backup transmission link combines the backup optical signal with the primary multiplexed optical signal to form a complete optical signal for transmission over the optical network. In another embodiment, a similar process is performed for providing backup optical signal reception.

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