Applications of Coarse WDM(CWDM)technology

Based on the explanation of Wavelength Division Multiplexing(WDM)concept,the concepts and technical characteristics of Dense Wavelength Division Multiplexing(DWDM)and Coarse Wavelength Division Multiplexing(CWDM)are introduced in this paper. The advantages of CWDM technology and its cost applied in BIP-MAN are analyzed and compared. The status and functions of CWDM in BIP-MAN are discussed finally.