Micro-Optic Wavelength Division Multiplexer (MWDM) is based on thin-film filter technology and patented athermal platform systems for optical devices. The MWDM 6470/7064 is used to combine (or separate) conventional bands (1530-1560nm) with (or from) longer wavelength band (1574-1610nm) signals. This device has a very flat and wide passband, low insertion loss, and high isolation making this the ideal device for high-power Optical Amplification Systems and DWDM Network applications. The MWDM is used in high-power applications in DWDM systems. MWDM devices are Bellcore GR-1221 qualification tested and are in compliance with industry green initiatives such as Rohs and WEEE. All products are epoxy-free in the optical path.