Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-10-08
1998-11-17
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359110, 359130, 359141, 359161, H04J 1402, H04B 1017
Patent
active
058384774
ABSTRACT:
An optical submarine branching unit employing an optical circuit structure which is small in the number of optical components used, permits reduction of optical insertion loss and is well compatible with the ADD/DROP function suitable for use in wavelength multiplex transmission. An optical fiber pair provided in an optical submarine cable connecting between first and second points is branched toward a third point, an optical circulator capable of reversing the direction of rotation of an optical input/output is provided as optical switching means by which, in the event of a failure in the branch transmission system having the branched optical fiber pair, the optical fiber pair is connected between the first and second points directly without being branched to the third point.
REFERENCES:
patent: 4978189 (1990-12-01), Blonder et al.
patent: 5026137 (1991-06-01), Tokumitsu
patent: 5204771 (1993-04-01), Koga
patent: 5615290 (1997-03-01), Harasawa et al.
patent: 5633741 (1997-05-01), Giles
Edagawa Noboru
Miyakawa Tetsuyuki
Taga Hidenori
Yamamoto Shu
Kokusai Denshin Denwa Kabushiki Kaisha
Pascal Leslie
LandOfFree
Optical submarine branching device 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 submarine branching device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical submarine branching device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-890357