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Iridian Spectral Technologies
Div. of IDEX Optical Technologies
Map2700 Swansea Crescent
Ottawa, ON K1G 6R8
Phone: +1 613-741-4513
Fax: +1 613-741-9986

Advances in Gain Flattening Filters

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