Optical subscriber network transmission system

Details Optical subscriber network transmission system Optical subscriber network transmission system

1991-12-13

1994-11-29

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359113, 359173, H04B 1012

Patent

active

053695178

ABSTRACT:
The invention relates to an optical subscriber network transmission system and, in particular, means for smoothly enlarging the transmission capacity in such system. The invention shortens the time of service interruption during changeover of transmission line capacities by use of a spare optical transmission line. Installation of a low cost spare optical fiber line permits testing of transmission lines without service interruption. Successive changeovers are performed using the auxiliary fiber keeping service interruption to a minimum.

REFERENCES:
patent: 5175639 (1992-12-01), Takasaki
Lin, "Passive Optical Subscriber Loops with Multiaccess" Journal of Lightwave Technology, Nov. 7, 1989 #11.
Stauffer, "FT3C-A Lightwave System for Metropolitan and Intercity Applications"; IEEE Journal on Selected Area in Communications vol. SAC-1 #3 pp. 413-419, Apr. 1983.

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