Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1991-12-12
1994-02-08
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359127, 359137, 359161, 359167, 359177, H04B 1008, H04B 1012, H04J 1402
Patent
active
052853055
ABSTRACT:
An optical communication network includes at least one single-mode fiber, referred to as a "primary fiber," for transmission between a central office and a distribution node, and at least one multiplicity of single-mode fibers, referred to as "distribution fibers," for transmission between the distribution node and a multiplicity of optical network units (ONUs). Transmissions are exchanged between the primary and distribution fibers via at least one optical coupler located at the distribution node. The network is passive in the sense that all monitoring of the transmission media and the ONUs can be performed at the central office, without active intervention at remote locations. The network includes a monitor and a multiplicity of bypass lines by means of which at least a portion of inbound signals from the distribution fibers are transmitted to the monitor without passing through the optical coupler at the distribution node.
REFERENCES:
patent: 4306313 (1981-12-01), Baldwin
patent: 4590619 (1986-05-01), Winzer
patent: 4709418 (1987-11-01), Fox
patent: 4902086 (1990-02-01), Henry et al.
patent: 4977593 (1990-12-01), Ballance
C. Dragone, et al., "Efficient Multichannel Integrated Optics Star Coupler on Silicon," IEEE Photon. Tech. Lett. 1, Aug. 1989, pp. 241-243.
C. Dragone, "An N x N Optical Multiplexer Using a Planar Arrangement of Two Star Couplers," IEEE Photon. Tech. Lett. 3, Sept. 1991, pp. 812-815.
C. Dragone, et al., "Integrated Optics N x N Multiplexer on Silicon," IEEE Photon. Tech. Lett. 3, Oct. 1991, pp. 896-899.
J. R. Stern, et al., "Passive Optical Local Networks for Telephony Applications and Beyond," Elect. Lett. 23, (1987) 1255-57.
I. Sankawa, "Fault Location Technique for In-Service Branched Optical Fiber Networks," IEEE Photon. Tech. Lett. 2, (1990) 766-68.
I. Sankawa, et al., "Fiber Measurement Techniques For Passive Double Star Networks," Third IEEE Workshop on Local Optical Networks, (Sep. 24, 1991), 4.2-1 to 4.2-10.
K. Kumozaki et al., "A Study on the Maintenance Aspects of Passive Double Star Networks For Local Loops," IEEE Workshop on Local Optical Networks (May 1990), Section 4.3/1.
Cohen Leonard G.
Winters Jack H.
AT & T Bell Laboratories
Finston Martin I.
Pascal Leslie
LandOfFree
Optical communication network with passive monitoring 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 communication network with passive monitoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical communication network with passive monitoring will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-702185