23 March 1993 Multiwavelength pumping of erbium-doped fiber amplifiers in the 980-nm band
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A technique for significantly increasing the pump power in an erbium doped fiber amplifier by multiplexing pump lasers at different wavelengths is demonstrated. Two pump lasers with a wavelength separation of at least 10 nm are combined with an insertion loss of less than 0.5 dB. The performance tradeoffs as a result of multiwavelength pumping are discussed.
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Jagannath Chirravuri, Andrew Silletti, William J. Miniscalco, Richard W. Davies, Wayne F. Sharfin, Ta-Sheng Wei, "Multiwavelength pumping of erbium-doped fiber amplifiers in the 980-nm band", Proc. SPIE 1789, Fiber Laser Sources and Amplifiers IV, (23 March 1993); doi: 10.1117/12.141131; https://doi.org/10.1117/12.141131

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