Independent control of EDFA gain shape and magnitude usingexcited-state trapping |
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| Authors: | Yadlowsky M.J. |
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| Affiliation: | Div. of Sci. & Technol., Corning Inc., NY; |
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| Abstract: | Controlled use of excited-states of erbium are used to decouple the magnitude and shape of the gain spectrum of an erbium-doped fiber amplifier (EDFA) containing a low phonon energy glass. This makes it possible to operate a single EDFA at multiple gains without the gain flatness degradation referred to as dynamic gain-tilt. Dynamic gain-tilt free operation is demonstrated in the long-wavelength portion of the erbium gain spectrum using an erbium-doped ZBLAN fiber |
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