Flyin optronics' coarse wavelength division multiplexer (cwdm) utilizes thin film coating technology and proprietary design of non-flux metal bonding micro optics packaging. It provideslow insertion loss, high channel isolation, wide pass band, low temperature sensitivity and epoxy free optical path. Features: Low insertion loss Wide pass band High channel isolation High stability and reliability Epoxy-free on optical path Access network Applications: Line monitoring Wdm network Telecommunication Cellular application Fiber optical amplifier Acess network Parameter 4 channel 8 channel 16 channel Mux Demux Mux Demux Mux Demux Channel wavelength (nm) 1270~1610 Center wavelength accuracy (nm) ± 0.5 Channel spacing (nm) 20 Channelpassband (@-0.5db bandwidth (nm) > 13 Insertion loss (db) = 1.6 = 2.5 = 4.5 Channel uniformity (db) = 0.6 = 1.0 = 1.5 Channel ripple (db) 0.3 Isolation (db) Adjacent N/a > 30 N/a > 30 N/a > 30 Non-adjacent N/a > 40 N/a > 40 N/a > 40 Insertion loss temperature sensitivity (db/° c) < 0.005 Wavelength temperature shifting (nm/° c) < 0.002 Polarization dependent loss (db) < 0.1 Polarization mode dispersion < 0.1 Directivity (db) > 50 Return loss (db) > 45 Maximum power handling (mw) 300 Operating temperature (° c) -5~+75 Storage temperature (° c) -40~85 Package dimension (mm) L100 x w80 x h10 L142 x w102 x h14.5