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