INS couplers and WDM’s are designed, manufactured, and tested to meet a variety of high performance and environmental requirements. Our high quality couplers are available in single wavelength and dual window varieties in an assortment of split ratios. Our WDM’s feature low insertion loss in combination with high isolation. All device types are available in bare fiber, 900μm, or 3mm ruggedized versions and can be terminated with your choice of connectors or installed in a variety of modules.