5pcs New Optical Fiber Multiplexer Demultiplexer FWDM 1310/1490/1550nm 1:2 SC Connector Optical Equipment Special Free Shipping

1. WDM concept

WDM (wavelength division multiplexing) is a technology that transmits multiple wavelengths of optical signals in a single fiber at the same time.

The basic principle of optical wavelength division multiplexing (WDM) is that the optical signals of different wavelengths are combined (multiplexed) at the sending end and coupled to the same optical fiber on the optical cable line for transmission. At the receiving end, the optical signals of combined wavelengths are separated (demultiplexed) and further processed to recover the original signals and then sent to different terminals. Therefore, this technology is called optical wavelength division multiplexing, Referred to as optical wavelength division multiplexing technology.

Performance parameters of optical wavelength division multiplexer

Low insertion loss

Large isolation

Flat in band, steep change in out band insertion loss

Good temperature stability

Many multiplexing channels
Small size

Optical fiber demultiplexer multiplexer

In order to ensure high quality, stability and reliability, the filter type WDM selects the film filter with excellent performance. The filter type WDM can realize the combination and division of optical signals of two communication windows, double the transmission capacity of a single optical fiber, and realize bidirectional fiber communication. It is widely used in optical fiber upgrading, expansion or introduction of comprehensive new services, such as radio and television, telecommunications , Internet, etc