WDM stands for Wavelength Division Multiplexing. It is a technology used in fiber optic communication networks to increase the bandwidth capacity of a single optical fiber by transmitting multiple signals simultaneously at different wavelengths.

In WDM, different data signals are assigned to different wavelengths of light, which are then transmitted over the same fiber. Each wavelength is modulated with its own data signal, and the resulting optical signals are combined and transmitted over the fiber. At the receiving end, the signals are separated by a demultiplexer into their individual wavelengths, which are then converted back into their original electrical signals.

There are two main types of WDM: Coarse Wavelength Division Multiplexing (CWDM) and Dense Wavelength Division Multiplexing (DWDM). CWDM is used for short-range transmissions and typically supports up to 18 wavelengths. DWDM is used for long-haul transmissions and supports up to 80 or more wavelengths.

WDM technology has revolutionized the telecommunications industry by enabling high-speed data transmission over long distances. It has also reduced the need for costly fiber optic cables and other infrastructure, making it a cost-effective solution for high-bandwidth applications.

FiberWDM, was built by Guangzhou Ruid Ele-tech CO., LTD. is a fiber optical product manufacturer and integrated solution provider. Our primary products include, but are not limited to, the 1x9/XFP/SFP/SFP+/25G SFP28/40G QSFP+/100G/200G/400G QSFP optical transceiver, CWDM/ DWDM/ AAWG Devices, optical amplifier EDFA/100G 1310 SOA/Optical Fiber Repeater OEO, Optical Switch, Network Switch, and also include Network Packet Broker, Optical network OTAP for network security system.