Wavelength division multiplexer 1) Approved by ROHS and TLC. 2) Low IL and High RL. 3) Precise coupling ratio. Wavelength division multiplexerFeatures;1) Single mode and multi mode fiber available;2) Low insertion loss, high RL and low PDL;3) Precise coupling ratio;4) φ0.9mm, φ2.0mm, φ3.0mm fiber optic cable optional;5) Industry standard and custom housing available;6) Variety of FC, SC, LC, MU, ...