FWDM Optical Filter 3 Channel FC SC APC UPC FWDM 1310nm 1490nm 1550nm Optical Filter
FWDM, is known as Filter WDM. As its name suggests, it is a WDM device based on Thin Film Filters (TFF) technology. This filter technology took a revolutionary step forward as a result of developments driven by the challenging requirements of WDM optical communications systems. Using the Thin Film Filters to perform the Multiplexing or DeMultiplexing functions, FWDM can combine or separate light at different wavelengths in a wide wavelength range and offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability.

Parameter		FWDM T1550/R1310&1490
Pass Band Wavelength Range(nm)		1540~1550
Reflection band Wavelength Range(nm)		1260~1360/1480~1500
Insertion Loss(dB)	Pass Channel	≤0.6
	Refection Channel	≤0.4
Pass Band Ripple(dB)		＜0.3
Isolation(dB)	Pass Channel	＞30
	Refection Channel	＞15
Insertion Loss Temperature Sensitivity(dB)		＜0.5
Polarization Dependent Loss(dB)		＜0.1
Polarization Mode Dispersion (ps)		＜0.1
Directivity(dB)		＞50
Return Loss(dB)		＞45
Maximum Power Handing(mW)		300
Operating Temperature(℃)		-5~+75
Storage Temperature(℃)		-40~+85
Package Dimension(mm)		φ5.5xL38