Patent ID: 8625988
Filing Date: 2014-01-07
Classification: H04J,H04Q

Abstract:
1. An optical switch, comprising: a large scale switching device having at least a first input, a second input, a first output, and a second output, wherein the first input is coupled to a first optical fiber, and the second input is coupled to a second optical fiber; a small scale switching device having a third input, a fourth input, and a third output, wherein the third input of the small scale switching device is coupled to the first output of the large scale switching device and the fourth input of the small scale switching device is coupled to the second output of the large scale switching device; and a controller configured to establish a cross connect in the large scale switching device between the second input and the second output, wherein the small scale switching device is configured to automatically switch from the third input to the fourth input upon establishment of the cross connect in the large scale switching device and without instruction from the controller.