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US 7,623,744 B2Granted
Methods and apparatus to make substantially uniform losses in optical cross connects
AssigneeTellabs Operations, Inc.
InventorJerry C. Chen
Life of this patent
Estimating the term…
Abstract
A method for cross connecting optical signals includes using a common beam steerer to direct a set of optical signals from a set of input ports to a set of output ports. The method further includes adjusting a curvature of the common beam steerer so that paths of the optical signals have substantially the same effective path length.
Claims20
An apparatus for cross connecting optical signals, comprising:
- a first plurality of ports, members of the first plurality of ports are adapted for at least one of receiving, transmitting optical signals;
- a second plurality of ports, members of the second plurality of ports are adapted for at least one of receiving, transmitting optical signals;
- and
- a common beam steerer having a curved surface, wherein the first and second pluralities of ports are positioned relative to the common beam steerer so that a plurality of paths of optical signals transmitted between the members of the first and second pluralities of ports and steered by the common beam steerer has substantially the same effective path length.
1 more element
An apparatus for cross connecting optical signals, comprising:
- a first input port;
- a second input port;
- a first output port;
- a second output port;
- a first beam steerer, adapted to receive a first optical signal from the first input port and direct the first optical signal to the first output port;
- a second beam steerer, adapted to receive a second optical signal from the second input port and direct the second optical signal to the second output port;
- and
- a first collimator adapted to collimate the first optical signal so that a path of the first optical signal has substantially the same insertion loss as a path of the second optical signal.
5 more elements
Dependencies are inferred from the claim text.