1310/1490/1550nm Filter Type Wdm Steel Tube Optical Fwdm

1310/1490/1550nm Filter Type Wdm Steel Tube Optical Fwdm  Filter-based Wavelength Division Multiplexer (FWDM) is a kind of WDM multiplexer based on the Thin Film Filter (TFF) technology. The FWDM combines or separates light at different wavelengths in a wide wavelength range and is extensively used in EDFA, Raman amplifiers, and WDM optical networks.    Features:  Low Insertion loss  High Channel Isolation  Low Polarization Dependent Loss Application:  Fiber Amplifier  Long-hual,Metro,Access and FTTx  CATV Fiber Optic Links Optical Specifications:            ParameterFWDM T4/R35FWDM T5/R34FWDM T3/R45FWDM T34/R5Pass Band Wavelength Range (nm)±101480~15001540~15601260~13601260~1360 & 1480~1500Reflection Band 1 Wavelength Range(nm)±101260~13601260~13601480~15001540~1560Reflection Band 2 Wavelength Range (nm)±101540~15601480~15001540~1560Insertion Loss(dB)Reflect Channel≤0.6Pass Channel≤0.8Insertion Loss Variation(dB)15Reflect Channel>30Inertion Loss Temperature Sensitivity(dB/ºC)