Product Name: Polarization Maintaining C/L Band Filter WDM Description: These C/L Band Filter Wavelength Division Multiplexer ( C/L Band WDM) devices use stable Thin Film Filters and advanced packaging technology to achieve good performance and excellent environmental stability. The devices combine or separate light at different wavelength in a wide wavelength range while maintaining signal polarization. They could be used to combine or separate C band wavelength signals and L band wavelength signals in DWDM systems. It provides low insertion loss, high channel isolation, high extinction ratio and low temperature sensitivity.