Research Article

Fabrication and Characterization of a High-Gain Yb-Er Codoped Phosphate Glass Optical Amplifier

Figure 5

Signal net gain spectrum obtained for four different signal input powers −30 dBm, −20 dBm, −10 dBm, and 0 dBm at wavelengths ranging from 1515 to 1575 nm. Injected pump power is  mW.
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