Colorless, directionless, contentionless optical network using MxN wavelength selective switches
First Claim
1. An optical node, comprising:
- D (D≥
2) input ports;
D output ports; and
D degrees, each degree, of the D degrees, including an inbound M×
N (M≥
D, N≥
2D) wavelength selective switch (WSS) and an outbound M×
N WSS,where each inbound M×
N WSS includes;
an input that connects to a respective input port of the D input ports,D−
1 common inputs that connect to D−
1 drop outputs, each of a respective inbound M×
N WSS of the other degrees,D−
1 express outputs that connect to D−
1 express inputs, each of a respective outbound M×
N WSS of the other degrees,D−
1 drop outputs that connect to D−
1 common inputs, each of a respective inbound M×
N WSS of the other degrees, andat least one local drop port, andwhere each outbound M×
N WSS includes;
an output that connects to a respective output port of the D input ports,D−
1 common outputs that connect to D−
1 add inputs, each of a respective outbound M×
N WSS of the other degrees,D−
1 express inputs that connect to D−
1 express outputs, each of a respective inbound M×
N WSS of the other degrees,D−
1 add inputs that connect to D−
1 common outputs, each of a respective outbound M×
N WSS of the other degrees, andat least one local add port.
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Accused Products
Abstract
An optical node may include D (D≥2) input ports, D output ports, and D degrees. Each degree may include an inbound M×N (M≥D, N≥2D) WSS and an outbound M×N WSS. Each inbound M×N WSS may include an input connected to one of the D input ports; inputs connected to outputs of inbound M×N WSSs of the other degrees; outputs connected to inputs of outbound M×N WSSs of the other degrees; outputs connected to inputs of inbound M×N WSSs of the other degrees; and a local drop port. Each outbound M×N WSS may include an output connected to one of the D input ports; outputs connected to inputs of outbound M×N WSSs of the other degrees; inputs connected to outputs of inbound M×N WSSs of the other degrees; inputs connected to outputs of outbound M×N WSSs of the other degrees; and a local add port.
9 Citations
20 Claims
-
1. An optical node, comprising:
-
D (D≥
2) input ports;D output ports; and D degrees, each degree, of the D degrees, including an inbound M×
N (M≥
D, N≥
2D) wavelength selective switch (WSS) and an outbound M×
N WSS,where each inbound M×
N WSS includes;an input that connects to a respective input port of the D input ports, D−
1 common inputs that connect to D−
1 drop outputs, each of a respective inbound M×
N WSS of the other degrees,D−
1 express outputs that connect to D−
1 express inputs, each of a respective outbound M×
N WSS of the other degrees,D−
1 drop outputs that connect to D−
1 common inputs, each of a respective inbound M×
N WSS of the other degrees, andat least one local drop port, and where each outbound M×
N WSS includes;an output that connects to a respective output port of the D input ports, D−
1 common outputs that connect to D−
1 add inputs, each of a respective outbound M×
N WSS of the other degrees,D−
1 express inputs that connect to D−
1 express outputs, each of a respective inbound M×
N WSS of the other degrees,D−
1 add inputs that connect to D−
1 common outputs, each of a respective outbound M×
N WSS of the other degrees, andat least one local add port. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An optical node, comprising:
-
D (D≥
2), input ports,D output ports, and D degrees, where each degree includes an inbound M×
N (M≥
D, N≥
2D) wavelength selective switch (WSS) associated with a respective input port, and an outbound M×
N WSS associated with a respective output port,where each inbound M×
N WSS is to;receive optical signals from one input port and from inbound M×
N WSSs of other degrees,provide optical signals to the inbound M×
N WSSs of the other degrees for local drop at the other degrees,provide optical signals to outbound M×
N WSSs of the other degrees, for their respective output ports, andprovide optical signals to local drop ports; and where each outbound M×
N WSS is to;receive optical signals from the inbound M×
N WSSs of the other degrees and from the outbound M×
N WSSs of the other degrees for its respective output port,receive optical signals from local add ports for its respective output port, and provide optical signals from local add ports to the outbound M×
N WSSs of the other degrees for their respective output ports. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An optical node architecture, comprising:
-
D (D≥
2) input ports and D output ports; andD degrees, each including an inbound M×
N (M≥
D, N≥
2D) wavelength selective switch (WSS) and an outbound M×
N WSS,where each inbound M×
N WSS includes;an input that connects to a respective input port, a set of inputs that connect to a set of outputs, each of a respective inbound M×
N WSS of other degrees,a set of outputs that connect to a set of inputs, each of a respective outbound M×
N WSS of the other degrees,a set of outputs that connect to a set of inputs, each of a respective inbound M×
N WSS of the other degrees, andat least one local drop port, and where each outbound M×
N WSS includes;an output that connects to a respective output port, a set of outputs that connect to a set of inputs, each of a respective outbound M×
N WSS of the other degrees,a set of inputs that connect to a set of outputs, each of a respective inbound M×
N WSS of the other degrees,a set of inputs that connect to a set of outputs, each of a respective outbound M×
N WSS of the other degrees, andat least one local add port. - View Dependent Claims (18, 19, 20)
-
Specification