DWDM is also sometimes called wave division multiplexing (WDM)

With the introduction of the fiber optic communication industry by the challenges of the growing demand for bandwidth and speed requirements. These requirements make the present limitations of the various types of communication systems become more prominent. Produce a new technology, which can solve the task faced by the communications industry.

DWDM system bandwidth demand contributed to produce.

Suppliers who have how to effectively cope with a definite increase in the request with a worried frown. The continuous improvement of the optical fiber technology has partially alleviated the pressure on suppliers, and to open new areas of data and voice transmission, but due to the incompatibility of various formats, so that the optical fiber must be strictly restricted to a single format . For those who want to involve a lot of system suppliers, expensive new fiber accounts for a large share of the cost. So, one of the most promising program that specifically address high-speed DWDM technology (Dense Wavelength Division Multiplexing) came into being.

DWDM Mux module is a technology that puts data from different sources together on an optical fiber, with each signal carried at the same time on its own separate light wavelength. Using DWDM, up to 80 (and theoretically more) separate wavelengths or channels of data can be multiplexed into a lightstream transmitted on a single optical fiber. Each channel carries a time division multiplexed (TDM) signal. In a system with each channel carrying 2.5 Gbps (billion bits per second), up to 200 billion bits can be delivered a second by the optical fiber. DWDM is also sometimes called wave division multiplexing (WDM).

Since each channel is demultiplexed at the end of the transmission back into the original source, different data formats being transmitted at different data rates can be transmitted together. Specifically, Internet (IP) data, Synchronous Optical Network data (SONET), and asynchronous transfer mode (ATM) data can all be travelling at the same time within the optical fiber.

Present DWDM key technologies have been basically mature Gb / s level system has been widely used commercial Tb / s-class system is also being planned. DWDM technology reflects the following trends. The first is the continued growth of the system transmission capacity, the program to achieve the expansion of transmission capacity by improving channel rate, increasing the number of multiplexed wavelengths, the widening of the application wavelength range.

DWDM due to the presence of noise, jitter, signal decay effectively test the propagation of high data rate communications system has become more and more difficult, and these issues will lead to a large number of error. In addition to the efficiency and flexibility now have their own, DWDM still faces many of the high-speed test.

DWDM promises to solve the "fiber exhaust" problem and is expected to be the central technology in the all-optical networks of the future.

Which DWDM information you like？Or not, we also have some other information with DWDM at fiberstore.com. Buy DWDM Mux module and DWDM DeMux module from fiber optic products worldwide online store with confidence.