Flyin Optronics' MMWDM utilizes thin film coating technology and proprietary design of non-flux metal bonding micro optics packaging. It provides low insertion loss, high channel isolation, low temperature sensitivity and epoxy free optical path. Features 1， Wide Operating Wavelength Range 2， Low inertion loss 3， Ultra Flat Wide Passband 4， High Channel Isolation 5， High stability and reliability 6， Epoxy-free on Optical Path Applications 1， System Monitoring 2， WDM Network 3， Transmitters and Fiber lasers 4， Fiber Optical amplifier 5， Fiberoptic Instruments