Gain Dynamics Of Erbium-Doped Fiber Amplifiers

Desurvire, E.; Giles, C.R.

doi:10.1117/12.963143

Cited by 87 publications

(121 citation statements)

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“…The power density per unit wavelength term represents the contribution of the spontaneous emission into the guided mode [12]. We note that in contrast to the linear power equation that appears in "classical" EDFA theory [8], [9], (1) includes additional terms due to the varying refractive index contributions. Equation (1), coupled with a set of rate equations for the atomic populations of Er ions [12], formulate the basis of our spectrally resolved pulse model.…”

Section: Theoretical Modelmentioning

confidence: 99%

“…Furthermore, our model includes the effect of spontaneous emission noise on the pulse dynamics [9]. Our approach is limited to pulsewidths of a few hundred femtoseconds, for which we can assume thermal equilibrium of the atomic populations within each Er manifold [9]. The new model is employed to demonstrate the effects of dopant dispersion on the amplification of short optical pulses in the technologically important 1.55-m range wavelengths.…”

Section: Introductionmentioning

confidence: 99%

“…The model allows us to calculate the time-dependent power spectrum of the pulse, and thus to simultaneously analyze the signal in the time and spectral domains, which is more compliant with the experimentalist's observations. Furthermore, our model includes the effect of spontaneous emission noise on the pulse dynamics [9]. Our approach is limited to pulsewidths of a few hundred femtoseconds, for which we can assume thermal equilibrium of the atomic populations within each Er manifold [9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spectrally Resolved Approach for Modeling Short Pulse Amplification in Er$^{3+}$-Doped Fibers

Yahel

Hess

Hardy

2006

IEEE Photon. Technol. Lett.

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Abstract-We study pulse propagation in Er 3+ -doped fiber amplifiers (EDFA) within the framework of a spectrally resolved pulse rate-propagation equations model. Our model accounts for the effects of gain dispersion, gain saturation, waveguide and chromatic dispersion, and amplified spontaneous emission. This model allows us to approximate the effects of nonlinear resonant dispersion on short pulse amplification in doped fibers, without reverting to the generalized nonlinear Schroedinger equation. Numerical results of the time-dependent power spectrum of the amplified pulse demonstrate subpicosecond pulse propagation in EDFAs.Index Terms-Erbium (Er), optical fiber amplifiers, optical fiber dispersion, optical pulse amplifiers.

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Section: Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spectrally Resolved Approach for Modeling Short Pulse Amplification in Er$^{3+}$-Doped Fibers

Yahel

Hess

Hardy

2006

IEEE Photon. Technol. Lett.

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“…In a co-pumped design, low gain and low noise figure is achieved in contrast to the counter-pumped design where the gain and noise figure is relatively higher [6]. As a compromise bi-directional pumping scheme were introduced to achieve higher gain with notably high noise figures= [7].…”

Section: Introductionmentioning

confidence: 99%

New pumping scheme for high gain and low noise figure in an erbium-doped fiber amplifier

Sinivasagam

Abushagur

Dimyati

et al. 2005

IEICE Electron. Express

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Abstract:We propose a new pumping method for optical fiber amplifiers at 1480 nm and 980 nm that is able to provide high gain and low noise-figure. The gain and noise figure obtained were 38.3 dB and 5.5 dB with an improvement of 3.8 dB and 1.4 dB, respectively, at 1550 nm, for −30 dBm input power when compared to its counterpumped design. This design also delivers higher gain and lower noise figure when compared to the common bi-directional dual-pumped designs. A power conversion efficiency of 44.5% was achieved in this design. Keywords: Optical amplifiers, pumping methods, erbium-doped Classification: Photonics devices, circuits, and systems References

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“…, (4) where hf is the photon energy, nsp,Ei and nsp,E2 are the spontaneous emission factors [8] of the EDFAs and neq,RA is the equivalent input noise factor [5] for the RA [5]. The optimal HFA setup (Raman/EDFA gain balancing) is the one that maximizes OSNRi for each LSPAN and for each LDCF (and consequently each value of Dresji)-Therefore, the optimization is done on OSNRi [4] Defining the total link length (2000 km) and the span length (we considered LSPAN = 50 and LSPAN = 80 km), NSPAN is consequently defined (NSPAN = 40 and ^SPAN = 25), and OSNRTARGET is fixed by imposing the target BER.…”

Section: N^pan^l Nip^i^mentioning

confidence: 99%

Simultaneous Optimization of Hybrid Fiber Amplifiers and Dispersion Maps

Curri

Tenenbaum

2005

Optical Networks and Technologies

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Abstract:Multi-span optical systems using Hybrid Fiber Amplifiers are optimized for the lowest BER under dispersion management for a 2000 Km link operating at 42.7 Gbit/s. The best span configuration including optimum Raman/Erbium gain balance and ideal dispersion compensation degree is found. It is shown that hybrid amplifier configurations behave better than EDFA-only and Raman-only systems, accumulating less noise and nonlinearities.

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Gain Dynamics Of Erbium-Doped Fiber Amplifiers

Cited by 87 publications

References 0 publications

Spectrally Resolved Approach for Modeling Short Pulse Amplification in Er$^{3+}$-Doped Fibers

Spectrally Resolved Approach for Modeling Short Pulse Amplification in Er$^{3+}$-Doped Fibers

New pumping scheme for high gain and low noise figure in an erbium-doped fiber amplifier

Simultaneous Optimization of Hybrid Fiber Amplifiers and Dispersion Maps

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