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 …

Burdett (57) ABSTRACT A method for Setting a cut-through optical path in an optical network
System is proposed. Each node device inquires of node devices adjacent to the present …

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 …

(57) ABSTRACT A device (D) is dedicated to optical Switching in a Switching node (NC) of a
transparent optical network. This device (D) comprises i) at least one input port adapted to …

Disclosed is a novel method of allocating resources within an optical network in order to
establish an optical path between a first node and a second node. A query signal, proposing …

In order to set up a bidirectional connection path in an optical transmission system
composed of a number of Switched optical network nodes having a number of unidi …

The optical node comprises two working directional switches (22, 27) connected serially in a
primary ring line (2), respectively ahead of and after an extracting and/or inserting unit (11) …

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 …