High Stability Optical Component 1×1 Gain Flattening Filters
GFF gain flat filters are based on thin film filter technology, designed and manufactured in a high standard according to the erbium-doped fiber emission spectrum. The main function of GFF gain flattening filter is to flaten the emission spectrum of erbium-doped fiber, so that the output spectrum of the light source can achieve good flatness in the whole band.