A technology that enables a single optical fiber to carry multiple data channels (or wavelengths). Commercial DWDM systems can have as many as 160 separate channels.
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Packet optical transport (POT) networks are optical super-highways that use the most advanced technological enablers, from reconfigurable optical add/drop multiplexers (ROADMs) to amplifiers—and from very high bit rates to dense wavelength-division multiplexers (WDMs).
Packet traffic on submarine networks is steadily on the rise and submarine network operators must meet exacting services while optimizing performance.
Link characterization is essential for verifying that fiber infrastructure will support new equipment being placed into service when upgrading networks from 2.5 Gbit/s to 10 Gbit/s and even to 40 Gbit/s. Although these powerful systems can take network performance to the next level, they require proper installation, tuning and maintenance. Network service providers need to perform several tests to properly characterize their links when planning to increase the capacity of their network.
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