Optimax Systems, Inc. - Ultrafast Coatings 2024 LB

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Advances in Gain Flattening Filters

Author: Xiaolun Zeng and Michelle Derouin
Wednesday, June 1, 2022
Iridian Spectral Technologies

Gain flattening filters (GFFs), used to smooth out unequal optical signal intensities over a specified wavelength range in optical amplifiers, have evolved significantly over the past 20 years. While the packaging and materials utilized to construct these components have remained almost unchanged, advances including improved coating processes and optimized manufacturing control have pushed GFF performance to new heights.

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