High-reliability fiber optic repeater

Details High-reliability fiber optic repeater High-reliability fiber optic repeater

1985-10-09

1987-08-18

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455607, 455612, H04B 900

Patent

active

046882600

ABSTRACT:
A T-connection fiber-optical repeater employs redundant electrical-to-optical converters for generating optical signals to be distributed to terminal devices connected the repeater, and redundant optical-to-electrical converters for receiving optical signals from the terminal devices. Reliability is markedly increased by including one or two mixing stars in the fiber system between the converter and the repeaters. The number of converters and supporting circuitry that is needed can be reduced by coupling more than one fiber from the star or stars to each converter. The reliability of the repeater can be further enhanced by using redundant optical-to-electrical converters to receive optical signals from other repeaters and by using redundant electrical-to-optical converters to emit optical signals to other repeaters. Monitoring optical-to-electrical converters can be coupled to the stars in order to detect failure of electrical-to-optical converters connected to the stars.

REFERENCES:
patent: 4027153 (1977-05-01), Kach
patent: 4227260 (1980-10-01), Vojvodich et al.
patent: 4233589 (1980-11-01), Rawson et al.
patent: 4246475 (1981-01-01), Altman
patent: 4406513 (1983-09-01), Raphael
patent: 4457581 (1984-07-01), Johnson et al.
patent: 4566134 (1986-01-01), Harbour et al.
AMP Incorporated catalog, "Optimate Fiber Optic Interconnection System," issued 3-85, cover and pp. 53-54.

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