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Characterization of fiber amplifiers Lecture-5
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EDFA architecture Figure: EDFA architecture Characterization of DFA
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Three level Energy System Figure: Three level energy system Characterization of DFA
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Rate Equations for three level Energy System. Characterization of DFA
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Modeling of EDFA…………. Characterization of DFA
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Modeling of EDFA Characterization of DFA
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Noise figure of EDFA Characterization of DFA
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Figure: Gain and NF in dB as a function of pump power in mW using a 10 m long EDF at 1550 nm signal wavelength and injected signal power of -35 dBm. From the numerical simulation. Characterization of DFA
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Figure: Population in the upper state (N2) and ground state (N1) as a function of position along a 21 m long EDF at 1550 nm using 14 mW of pump power and injected signal power of -35 dBm. From the numerical simulation. Characterization of DFA
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Figure: Gain as a function of EDF length at 1550 nm signal wavelength using 14 mW of pump power and injected signal power of -35 dBm. Characterization of DFA
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Figure: Gain and NF in dB as a function of pump power in mW using a 10 m (non- optimized) and 21 m (optimized) long EDF at 1550 nm signal wavelength and injected signal power of -35 dBm. Characterization of DFA
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Figure: Gain and NF in dB as a function of signal power in dBm using a 21 m long EDF at 1550 nm signal wavelength and injected pump power of 14 mW. Characterization of DFA
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Figure: Absorption and emission cross sections of Erbium near 1500 nm for the fiber mentioned in table -1. Characterization of DFA
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Figure: Gain in dB as a function of signal wavelength for various pump powers and injected signal power of -35 dBm using a 21 m long EDF Characterization of DFA
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Figure: Gain in dB as a function of pump power in mW and signal power in dBm using a 21 m long EDF at 1550 nm signal wavelength. Characterization of DFA
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Figure: NF in dB as a function of pump power in mW and signal power in dBm using a 21 m long EDF at 1550 nm signal wavelength. Characterization of DFA
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