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One of the key advantages of WDM optical transport technology, from both technical and economic standpoint, is the potential for unlimited transmission capacity.
FREMONT, CA: Optical networking refers to a group of technologies and solutions that enable massive amounts of data to be transmitted via a single network link. Optical networking is a highly effective way to build a scalable, high-capacity network while also releasing the capacity locked up in a dark fiber pair.
Data signals from different sources can be coupled, or multiplexed using Wavelength Division Multiplexing (WDM) technologies like Coarse Wavelength Division Multiplexing (CWDM) or Dense Wavelength Division Multiplexing (DWDM), so they can share a single dark pair while maintaining complete separation of the individual data streams.
Because a single fiber may be divided into multiple channels, CWDM and especially DWDM systems are easily expanded. More capacity may be added without expensive improvements when demand changes, either through simple equipment improvements or by expanding the number of wavelengths used on the fiber. Additional services can be switched upon available wavelengths as the optical transport network expands and develops. Active line card modules can be swapped out for units that provide higher bandwidth service rates or use muxponders to transport multiple data streams over a single wavelength. Capacity can be achieved at a fraction of the equipment cost, and the existing fiber mill investment can be preserved.
Overcome Distance Limitations
DWDM systems capable of sustaining links beyond 120km and up to thousands of kilometers with optical amplifiers and signal regeneration capabilities, optical transport systems are capable of transmitting enormous loads of capacity over long distances.
Maximize Network Investments and Dark Fiber Utilization
One of the key advantages of WDM optical transport technology, from both technical and economic standpoint, is the potential for unlimited transmission capacity. In today's standard DWDM systems, not only can the current investment in fiber plants be kept, but a factor of 96 or more may also optimize it.
Today's WDM networks can also provide simple, integrated management solutions that boost operational efficiency dramatically. DWDM networks combined with ROADM technology enable enterprises to create network connections quickly, easily, and dynamically, allowing them to deploy high-bandwidth services in days rather than months. Their staff can remotely discover and handle issues in much less time.