
Gain
flattening
filters
FBG, DFB & photosensitive fibers
Exail’s GFF based on Fiber Bragg Grating (FBG) technology represents an easy and effective solution to flatten the gain in a WDM systems.
Fast prototyping made possible by our highly flexible production lines. The FBG technology achieves low systematic errors leading to stochastic accumulation of the error function in cascading GFFs.
iXtra technology based on chirped and slanted FBG written on our specialty fiber pushes the limits of flattening by achieving a very low ripple and a high return loss.


Features
Benefits
Customized filter profile in the C, L and S bands
Tight compensation of gain fluctuations
Low excess loss
Low magnitude ripple (down to 0.02 dBpp) with iXtra technology
Dissipative filtering with iXtra technology
Low systematic errors
Weak PDL and PMD
PM fiber available
Fulfill Telcordia GR-1209 or GR-1221 requirements
Custom design on request
Athermal or non-athermal package, recoat
WDM in optical fiber communication (Long-haul, Metro)
Clean-up filtering
ASE source flattening, spectral shaping
Raman amplifier