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Hybrid Gain Flattening Filters in Optical Fiber Amplifiers

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Author: Xiaolun Zeng, Michelle Derouin
Tuesday, February 25, 2020
Iridian Spectral Technologies

Iridian Spectral Technologies has developed what is referred to as a Hybrid GFF, which combines the functionality of both a WDM and the GFF on one component. Specifically, a Hybrid GFF can block the pump laser from light in the range of approximately 980 nm or 1480 nm while providing gain flattening for signal light amplification — without the need for an additional pump wavelength blocking filter. This article explains what a Hybrid gain flattening filter (GFF) is and how it works. It also details the advantages of using Iridian Spectral Technologies’ Hybrid GFFs in lieu of a conventional two-filter setup in EDFA and other optical filter applications.

File: Iridian_Hybrid_GFF.pdf (804.44 KB)
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CoatingsOpticsfiber opticsHybrid Gain Flattening FiltersGFF'sEDFAfiber amplifiersoptical filterstelecom filtershybrid GFF
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