Fiber Optics - Wavelength Division Mux & Demux

Fiber optic wavelength division multiplexers (WDMs) and demultiplexers (DWDMs) are electronic devices that are used in fiber optic communication systems to combine or separate optical signals of different wavelengths. They are designed to enable high-capacity data transmission over long distances by using different wavelengths of light to carry multiple signals.

Fiber optic WDMs and DWDMs use different technologies to combine or separate optical signals, including:

1. Passive devices: Passive devices use filters or gratings to separate or combine optical signals at different wavelengths. They do not require external power to operate and are typically used in low-speed applications.

2. Active devices: Active devices use optical amplifiers and other active components to separate or combine optical signals at different wavelengths. They require external power to operate and are typically used in high-speed applications.

Fiber optic WDMs and DWDMs come in different configurations and designs, depending on the application and the required performance. They can be integrated into a fiber optic network or mounted in a separate enclosure, depending on the application and the space available.