Experimental validation of double-pass discrete Raman amplifier limitation for large signals

Ali, M. I. Md; Zamzuri, A. K.; Ahmad, A.; Mohamad, R.; Mahdi, Mohd Adzir

doi:10.1109/lpt.2005.863630

Cited by 6 publications

(6 citation statements)

References 7 publications

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“…The effect of SBS was also observed in a specific configuration of Raman amplifier, as reported in Ref. 7. In this case, the impact of SBS in a double-pass discrete Raman amplified 4 Â 10 Gb/s system was experimentally investigated along with SBS threshold.…”

Section: Introductionmentioning

confidence: 65%

“…The obtained result is shown in Figure 6 for a link with SMF, DCF, and Raman amplification. The Brillouin threshold is dependent on signal energy distribution [7]. The k 3 and k 4 signal channels present first-order Brillouin lines, which are not visible in the first channel.…”

Section: Single High Pump Power Laser Raman Amplifier Settingmentioning

confidence: 96%

“…This effect can be intensified in single mode fiber (SMF) transmission systems using narrow-linewidth single frequency lasers [5] and give place to interchannel interference between counterpropagating signal waves in bidirectional transmission systems [6]. SBS has been already reported in a specific configuration using DRAs [7]. However, the continued Raman pump lasers evolution has enhanced the pump power and also reduced the spectral linewidth of such devices.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Brillouin effect characterization in all‐Raman amplified 4 × 40 Gb/s WDM system

Pontes

Segatto

Barbero

et al. 2012

Micro & Optical Tech Letters

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This article analyzes experimentally the limitations observed in a 45 km Raman amplified 4 Â 40 Gb/s transmission system operating under multiple pump and single high pump power configurations. A signal-to-noise ratio of 19.2 dB, an extinction ratio of 10.4 dB and a jitter of 1097 fs are achieved for moderate pump powers and higher order stimulated Brillouin scattering lines give rise to system degradation for pump power levels more than 0.5 W.

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Section: Introductionmentioning

confidence: 65%

Section: Single High Pump Power Laser Raman Amplifier Settingmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Brillouin effect characterization in all‐Raman amplified 4 × 40 Gb/s WDM system

Pontes

Segatto

Barbero

et al. 2012

Micro & Optical Tech Letters

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“…Due to its low convert efficiency, Raman Amplifier (RA) which is one of the key components of the high-speed and high-capacity communications systems can only assist EDFA but can be substituted in commercial operation [1][2][3]. Therefore, it is an ideal application to combine the RA with EDFA.…”

Section: Introductionmentioning

confidence: 99%

Impact analysis on performance optimization of the hybrid amplifier (RA + EDFA)

Yuan

Liang

Wang

et al. 2011

Optik

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“…The stimulated Brillouin scattering (SBS) is one of the most important nonlinear effects in single mode fiber transmission systems, which employ narrow-linewidth single frequency lasers [9] and may lead to interchannel interference between counterpropagating signal waves in bidirectional transmission systems [10]. SBS was already reported in a specific configuration used in DRAs [11].…”

Section: Introductionmentioning

confidence: 99%

Rayleigh assisted Brillouin effects in distributed Raman amplifiers under saturated conditions at 40 Gb/s

Giraldi

Rocha

Neto

et al. 2010

Micro & Optical Tech Letters

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mm. The strips of the three-line-microstrip section have a width of 1.4 mm and are separated a distance of 0.2 mm. The microstrip sections have a width of 4.6 mm to achieve a characteristic impedance of 50 X.For the circuit simulation, the characteristic impedances and propagation constants of the ee, oo, and oe modes have been obtained from an electromagnetic analysis performed with Agilent TM Momentum. The via holes have been modeled using the model proposed in [8]. Figure 5 compares the measured and simulated [using the circuit model of Figure 4(b)] S 11 and S 21 parameters of the designed filter, showing a good agreement. The measured and simulated insertions losses are 1.2 and 0.7 dB, respectively. The measured and simulated bandwidths are 9.7 and 10.1%, respectively. The results validate both the multimodal approach and the filter structure proposed in this letter. CONCLUSIONSIn this letter, a new two-pole compact BPF using an asymmetric short-circuited spurline resonator is presented. It has been analyzed by means of a new multimodal model for a microstrip to three-linemicrostrip cross. This multimodal model provides a useful tool to parametrically study the dependence of the filter performance on its dimensions. Based on this parametric study, a series of design rules has been obtained, which allow a rapid fine tuning of the filter central frequency and bandwidth. Finally, a BPF with a 1.9-GHz center frequency has been designed, simulated, and measured. Simulations and measurements show a good agreement, and therefore, validate both the filter structure and its multimodal model. ACKNOWLEDGMENTS

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Experimental validation of double-pass discrete Raman amplifier limitation for large signals

Cited by 6 publications

References 7 publications

Brillouin effect characterization in all‐Raman amplified 4 × 40 Gb/s WDM system

Brillouin effect characterization in all‐Raman amplified 4 × 40 Gb/s WDM system

Impact analysis on performance optimization of the hybrid amplifier (RA + EDFA)

Rayleigh assisted Brillouin effects in distributed Raman amplifiers under saturated conditions at 40 Gb/s

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