Influence of upconversion and pump excit
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Prita Nair; B. M. Sivaram; J. P. Raina
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Article
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1996
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John Wiley and Sons
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English
โ 509 KB
## lhe combined effects of upconversion and pump excited state absorption losses on the gain from co-and contmdirectwnallypumped erbium-doped fiber amplifiers have been studied qerimentully and simulated numerically. Our results indicate that for all fiber lengths, contradirectional gain is higher