Optical waveguides – With optical coupler – Plural
Patent
1990-07-20
1991-10-08
Lee, John D.
Optical waveguides
With optical coupler
Plural
385 27, 359333, 359345, G02B 628
Patent
active
050548760
ABSTRACT:
An optical fiber telecommunication line composed of a number of series connected optical cables arranged end-to-end includes an active core optical fiber amplifier for the transmitted signals between each adjacent pair of optical cables. Two pumping optical radiation sources are connected to each active core optical fiber within each of the amplifiers, one source for each end of a single active core optical fiber. One of these two sources is placed into service and the second one is kept in reserve to be placed into service if the first one fails. A microprocessing circuit causes the sources to send distinctive recognizable alarm signals indicative of the state of an associated amplifier to terminal stations at the ends of the line and to receive therefrom control signals to control and exchange the functions between the two sources as necessary.
REFERENCES:
patent: 4636029 (1987-01-01), Johansson et al.
patent: 4680809 (1987-07-01), Hartkopf et al.
patent: 4815804 (1989-03-01), Desurvire et al.
patent: 4863230 (1989-09-01), Webb
patent: 4886334 (1989-12-01), Aoki
patent: 4958910 (1990-09-01), Taylor et al.
Fontana Flavio
Grasso Giorgio
Righetti Aldo
Heartney Phan T.
Lee John D.
Societa Cavi Pirelli S.p.A.
LandOfFree
Optical fiber telecommunication line including amplifiers distri does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical fiber telecommunication line including amplifiers distri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber telecommunication line including amplifiers distri will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-253612