Self-saturation of amplified spontaneous emission in a fiber amplifier

The dependence of erbium-doped fiber amplifier (EDFA) performance on amplifier self-saturation is studied by tuning the pump wavelength over a 5 nm band centered at 980 nm. Gain and noise figure are degraded at the peak pump absorption wavelength, which shows the strongest effect of amplifier self-s...

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Bibliographic Details
Main Authors: M.A. Mahdi,, S. Thirumeni,, P. Poopalan,
Format: Article
Published: Universiti Kebangsaan Malaysia 2001
Online Access:http://journalarticle.ukm.my/3814/
http://www.ukm.my/jsm/english_journals/vol30_2001/vol30_01page187-194.html
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Summary:The dependence of erbium-doped fiber amplifier (EDFA) performance on amplifier self-saturation is studied by tuning the pump wavelength over a 5 nm band centered at 980 nm. Gain and noise figure are degraded at the peak pump absorption wavelength, which shows the strongest effect of amplifier self-saturation. It is shown experimentally that tuning the pump wavelength away from the peak pump absorption provides 1 -2 dB improvement in pump­ to-signal conversion. The effect of amplifier self-saturation is also dependent on the signal wavelength where high gain and noise figure penalties are obtained at 1530 nm (± 5 nm) band.