Optelian offers automatic optical power balancing capability to DWDM networks

MARCH 28, 2010 -- Optelian has announced the availability of automatic power balancing for DWDM networks. This capability is designed to enable automatic power measurement and adjustment, thus eliminating the need for a technician to travel to every node in a network with optical spectrum analyzers. The result is significantly reduced costs, Optelian says.

MARCH 28, 2010 -- Optelian has announced the availability of automatic power balancing for DWDM networks. This capability is designed to enable automatic power measurement and adjustment, thus eliminating the need for a technician to travel to every node in a network with optical spectrum analyzers. The result is significantly reduced costs, Optelian says.

Whenever new channels are added to a DWDM system, the optical power levels of existing channels are affected, mainly due to spectral gain variation in optical amplifiers that results from changes in channel loading. Optical power levels of new and existing channels must be balanced to prevent channel power disparities within the system that can lead to degraded or failed optical connections.

The more amplifiers in the system, the bigger this problem is, Optelian explains. Technicians often needed to travel to every node in a network, bringing optical spectrum analyzers to measure optical power levels across all the channels and make any required adjustments to attenuation. Optelian says that the new automatic power measurement capabilities enable optical power levels to be continuously and automatically measured and adjusted at all network nodes without any technician involvement.

“The great advantage of Optelian’s power balancing capability is its cost-effectiveness and ease of implementation,” said Dave Mills, VP Sales at Optelian. “It pays for itself very quickly when there is growth or change on any multi-node DWDM network, especially when the network spans a large geographic area.”

Automatic power balancing is implemented using Optelian’s RDM-2x1 wavelength selective switch together with the OCM-40 optical channel monitor. It can be used with any vendor’s DWDM system, including Optelian’s own LightGAIN system, the company says.

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