
This passive optical device is designed to combine or separate light signals at 1310nm and 1550nm wavelengths. It is used in telecommunication engineering to increase the transmission capacity of optical fiber networks.

This 3-port filter wavelength division multiplexer combines or separates optical signals at different wavelengths. It features low insertion loss, high isolation, and excellent environmental stability, suitable for optical amplification, fiber optic sensing, and WDM systems.