Pumping wavelength dependence on gain factor of a 0.98 μm pumped Er3+ fiber amplifier
- 18 December 1989
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 55 (25) , 2573-2575
- https://doi.org/10.1063/1.101982
Abstract
Gain characteristics of an Er3+‐doped fiber are investigated with different pump wavelengths using a tunable Ti:sapphire laser in the 0.98 μm band. Maximum gain was obtained at a pump wavelength of 0.980 μm and the gain profile can be fully explained in terms of the pump absorption spectrum. The 3 dB gain bandwidth for the pump wavelength was 10–14 nm. A gain coefficient of 2.6 dB/mW was obtained for a 60 ppm Er3+‐doped fiber with an absorbed pump power of 9 mW.Keywords
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