Optical Switches are provided in an optical transmission System having at least two optical
nodes in optical commu nication over a primary optical path and a backup optical path. An …

Optical switches are provided in an optical transmission system having at least two optical
nodes in optical communication over a primary optical path and a backup optical path. An …

Optical switches are provided in an optical transmission system having at least two optical
nodes in optical communication over a primary optical path and a backup optical path. An …

An optical switch for routing optical signals is disclosed. The optical switch has an optical
signal path for routing said optical signals between at least a first port and at least a second …

An optical transmission system capable of time difference correction without increasing
guard times, thereby improving optical packet transmission efficiency. An optical switching …

An apparatus is provided for multiplexing optical signals in an optical network. In
accordance with one aspect of the invention, the apparatus includes a plurality of input fibers …

A 2× 2 optical switch routs each light signal received from input ports to selected output. The
optical switch has an adjustable light signal steering element, a fixed light signal steering …

An optical transmission system capable of time difference correction without lengthening
guard times, thereby improving optical packet transmission efficiency. A switching processor …

In an optical network, a logical channel is established between two optical Switches in
response to a control message over multiple optical linkS. At least one optical transmission …

In accordance With the present invention, an archi tectural arrangement is provided for
launching an optical system signal into an optical transport netWork Where the optical …