Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2006-02-14
2006-02-14
Glick, Edward J. (Department: 2882)
Optical waveguides
With optical coupler
Plural
C398S083000
Reexamination Certificate
active
06999654
ABSTRACT:
An add/drop node of an optical WDN-network which has two fiber paths for light of a plurality of channels propagating in opposite directions comprises two add/drop modules (231, 23r) for each of the channels. All the modules are identically constructed. Each module comprises an add device (251, 25r) for adding light to one of the paths and a drop device (27r,271) for deflecting a portion of light from a second one of the paths. A module comprises a house (41) enclosing the add device and the drop device. A first fixed connector (53, 73) is attached to the house for connection in the first path and to a an optical fiber (45, 65) which extends freely from the house and has a first free connector (43, 63) at its free end to be attached to the fixed connector of a neighboring add/drop module for continuing the first path through the considered add/drop module to the neighboring module. In the same way a second fixed connector is attached to the house for connection in the second path and to a second optical fiber which extends freely from the house and has a second free connector at its free end to be attached to the fixed second connector of a neighboring add/drop module for continuing the second path through the considered add/drop module to the neighboring module.
REFERENCES:
patent: 5680235 (1997-10-01), Johansson
patent: 5754545 (1998-05-01), Shinbashi et al.
patent: 5774606 (1998-06-01), De Barros et al.
patent: 5778132 (1998-07-01), Csipkes et al.
patent: 5832156 (1998-11-01), Strasser et al.
patent: 5953141 (1999-09-01), Liu et al.
patent: 5982791 (1999-11-01), Sorin et al.
patent: 6160616 (2000-12-01), Ohtomo et al.
patent: 6163392 (2000-12-01), Condict et al.
patent: 6169616 (2001-01-01), Cao
patent: 6195186 (2001-02-01), Asahi
patent: 6333799 (2001-12-01), Bala et al.
patent: 6631018 (2003-10-01), Milton et al.
patent: 6684005 (2004-01-01), Egnell et al.
patent: 0920153 (1999-06-01), None
patent: 9826531 (1998-06-01), None
patent: WO 99/65165 (1999-12-01), None
Zhong, “New Bi-Directional WDM Ring Networks with Dual Hub Nodes”, IEEE, 1997, vol. 1, pp. 556-560.
Zhong, IEEE, vol. 1, pp. 556-560 (1997).
Ho et al., Electronics Letters, vol. 34, Issue 10, pp. 947-948 (1998).
Zhao et al., Optical Fiber Communications Conference, vol. 1, pp. 183-185 (1999).
Bonnedal Dag
Egnell Lars
Hulten Ola
Johansson Bengt
Lidén Fredrik
Aka Chan LLP
Cisco Technology Inc.
Glick Edward J.
Kao Chih-Cheng Glen
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