Boertjes

David Boertjes, Nepean CA

Patent application number	Description	Published
20110200324	METHOD AND SYSTEM FOR OPTICAL CONNECTION VALIDATION - An optical add/drop multiplexer (OADM) having an Add path for adding optical channel signals input through a plurality of Add ports to an outbound dense wavelength division multiplexed (DWDM) signal, and a Drop path for switching selected channels from an inbound DWDM signal to one or more of a plurality of Drop ports. The OADM has a loopback connection between the Add path and the Drop path. The loopback connection couples a selected loopback channel wavelength from the Add path to the Drop path. The physical connection between a transceiver and the OADM can be verified by connecting the transmitter to an Add port of the OADM and the receiver to a Drop port of the OADM. The OADM is controlled to switch the selected loopback channel wavelength in the Drop path to at least one intended drop port to which the receiver should be connected, and the transmitter is controlled to transmit a predetermined test signal using the loopback channel wavelength. Detecting the test signal by the receiver verifies that the receiver is connected to the at least one intended drop port.	08-18-2011

Patent application number	Description	Published
20100027998	OPTICAL ROUNDABOUT SWITCH - An optical roundabout comprising optical switching elements arranged in a ring, the routing of the inputs of each internal optical switch to its outputs being ganged, each internal optical switching element having add and drop ports, and connected to its next optical switching element around the ring by an optical waveguide.	02-04-2010

Patent application number	Description	Published
20090116837	METHOD AND SYSTEM FOR CONTROLLING OPTICAL NETWORKS - An optical control system is described which is capable of maintaining and optimizing a fiber-optic transport system within it's domain of control while interacting with other optical systems which are controlled independently. This allows the optical system to be incorporated as a building block into a larger optical network in a relatively arbitrary fashion. This provides an underlying control system for a non-linear system like optics network that is flexible and extensible.	05-07-2009