The coarse Add/Drop module is used to drop and add one or more ITU wavelength channels spacing in CWDM systems. The module is based on environmentally stable Thin Film Filter technology. It has wide bandwidth, low insertion loss, high isolation and high power handling capability and high isolation The related products are below: 1310/1550nm WDM 1310/1550nm Standard WDMs 1310/1550nm Add/Drop WDMs 1310/1550nm Relay WDMs 980/1550nm WDM 1480/1550nm WDM Coarse WDM Add/Drop Module (COADMM Series) Coarse Wavelength Division Multiplexer Module(4 channels / 8channels) Coarse WDM Add/Drop Module (COADMM Series) Oplinkbay is a profesional manufacturer and supplier of optical communication products in shenzhen china, welcome for inquiry