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Gain flattening filters (GFFs) flatten the gain profile in optical amplifiers by selectively removing excess power. The JDSU thin film GFF offers an excellent match to the target loss profile with low excess loss and error function, even for exceptionally deep (>20 dB) and steep GFF (>2.5 dB/nm) profiles. Customized thin film GFFs are available in the C, L, and S bands. All JDSU thin film GFFs fulfill Telcordia GR-1221 requirements. * Steep profiles (> 2.5 dB/nm) |