Fosco couplers and WDM’s are designed to meet Telcordia requirements. Our high quality, low cost couplers are available in single wavelength and dual window varieties in an assortment of split ratios.

Our WDM’s feature low insertion loss and high isolation. All device types are available with bare fiber, 900μm, or 3mm jacket, and can be terminated with your choice of connectors or installed in rack mount modules.