Electronic EDFA gain control for the suppression of transient gain dynamics in long-haul transmission systems

Pachnicke, Stephan; Obholz, Martin; Voges, E.; Krummrich, Peter M.; Gottwald, E.

doi:10.1109/ofc.2007.4348399

Cited by 10 publications

(5 citation statements)

References 5 publications

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“…The amplifier was optimized to deliver a 20 dB of amplification for 40 C-band-channels with -17 dBm input power at the EDFA, each. Electronic pump control is implemented according to [6] to operate the…”

Section: Simulation Resultsmentioning

confidence: 99%

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Dynamic Model of Spectral Hole Burning for EDFAs with 980-nm-Pumping

Holtmannspoetter¹,

Schmauß²

2011

Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2011

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Section: Simulation Resultsmentioning

confidence: 99%

“…left shows the control deviation (see[6]) for two exemplary drop events. During drop event a), 38 out of 40 channels are dropped instantaneously, the surviving channels are at 1530 nm and 1561 nm.…”

mentioning

confidence: 99%

Dynamic Model of Spectral Hole Burning for EDFAs with 980-nm-Pumping

Holtmannspoetter¹,

Schmauß²

2011

Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2011

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“…In this system, an EDFA with a 20 dB gain, which is independent of the wavelength, is used as a preamplifier [41].…”

Section: Optical Amplifiermentioning

confidence: 99%

Design and performance evaluation of a dispersion compensation unit using several chirping functions in a tanh apodized FBG and comparison with dispersion compensation fiber

2014

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In this work, various dispersion compensation methods are designed and evaluated to search for a cost-effective technique with remarkable dispersion compensation and a good pulse shape. The techniques consist of different chirp functions applied to a tanh fiber Bragg grating (FBG), a dispersion compensation fiber (DCF), and a DCF merged with an optimized linearly chirped tanh FBG (joint technique). The techniques are evaluated using a standard 10 Gb/s optical link over a 100 km long haul. The linear chirp function is the most appropriate choice of chirping function, with a pulse width reduction percentage (PWRP) of 75.15%, lower price, and poor pulse shape. The DCF yields an enhanced PWRP of 93.34% with a better pulse quality; however, it is the most costly of the evaluated techniques. Finally, the joint technique achieved the optimum PWRP (96.36%) among all the evaluated techniques and exhibited a remarkable pulse shape; it is less costly than the DCF, but more expensive than the chirped tanh FBG.

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“…As already mentioned, in this paper an electrical feedback loop (Section 2) is deployed to control the pump power. In extensive simulations the controller parameters have been analyzed for different scenarios [7] relevant for practical applications.…”

Section: Optimization Of Controller Parametersmentioning

confidence: 99%

Transient gain dynamics in long-haul transmission systems with electronic EDFA gain control

et al. 2007

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͑Doc. ID 82678͒ We report our investigations on the impact of transients stemming from channel reconfiguration or network failure. Erbium-doped fiber amplifier (EDFA) gain dynamics are considered by an average-inversion-level model. The simulation model is also verified by laboratory experiments. In extensive simulations, optimal sets of parameters for an electronic EDFA gain controller have been determined. We show that better results can be obtained if the gain controller is optimized for a chain of EDFAs and not a single amplifier only. Additionally, an efficient simulation methodology to calculate the combined bit error ratio (BER) is presented by coupling simulations of transient phenomena with bit-based simulations incorporating nonlinear fiber effects.

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Electronic EDFA gain control for the suppression of transient gain dynamics in long-haul transmission systems

Abstract: An electronic feedback gain control for the suppression of transients in EDFA chains is analyzed. It is shown that the optimal parameters for a single amplifier do not lead to optimal results for cascaded EDFAs.

Cited by 10 publications

References 5 publications

Dynamic Model of Spectral Hole Burning for EDFAs with 980-nm-Pumping

Dynamic Model of Spectral Hole Burning for EDFAs with 980-nm-Pumping

Design and performance evaluation of a dispersion compensation unit using several chirping functions in a tanh apodized FBG and comparison with dispersion compensation fiber

Transient gain dynamics in long-haul transmission systems with electronic EDFA gain control

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