The AWG CWDM4 of HYC is based on silicon chip technology. It has compact, easy-to-assemble structure and good reliability. It can replace TFF (thin film filter) type CWDM. It is widely used in 40G and 100G high-speed active optical modules for optical signal Mux and Demux, such as QSFP+, QSFP28, etc.Fiber Optic Passive Devices Manufacturer ODM JDM - HYC Co., Ltd