Micro-Optic Wavelength Division Multiplexer (MWDM) is based on thin-film filter technology and patented athermal platform systems for optical devices. The MWDM13CS is used to combine or separate 1310nm band and CWDM signals. This device offers a very flat and wide passband, low insertion loss, and high isolation, which make it ideal for CWDM Network applications and Optical Amplification Systems. MWDM devices are Bellcore GR-1221 qualification tested and are in comliance with industry green initiatives such as Rohs and WEEE. All products are epoxy-free in the optical path.