Optimization of Hybrid Fiber Amplifier Utilizing Combined Serial-Parallel Configuration

Abass, A. K.; Ali, M. H.; Al–Hussein, Savana A. Abd

doi:10.1088/1757-899x/454/1/012014

Cited by 13 publications

(13 citation statements)

References 6 publications

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“…3 c. The results clearly showed the satisfactory performance of the proposed amplifier, which can operate up to -15 dBm without a saturation effect. Finally, the results of our design exhibited a wider gain bandwidth and larger gain level compared with the findings in [9,10,11,12,13,14,15,16,17,18]. Table 1 summarizes the results of the performance evaluation of our work and previous studies.…”

Section: Methodsmentioning

confidence: 57%

Widely Flatness Gain Bandwidth with Double Pass Parallel Hybrid Fiber Amplifier

Gurkaynak

Al-Mashhadani

Ali

et al. 2021

Preprint

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A Widely flatness gain bandwidth with double pass parallel hybrid fiber amplifier is experimentally demonstrated in this study. The proposed design combines serial erbium–Raman fiber amplifier in one branch and Raman fiber amplifier in the second branch. Multiple Raman pump units with a maximum power of 800 mW (250 mW of 1410 nm, 225 mW of 1480 nm, and 325 mW of 1495 nm) are utilized. Pump recycling technique is applied to achieve acceptable pumping efficiency. A maximum flatness gain bandwidth of 80 nm (1525–1605 nm) and average gain level of 22.5 dB are obtained at a small input signal power of -25 dBm and optimum pump power values. By comparison, a wider flatness gain of 90 nm (1520–1610 nm) and average gain level of 11.5 dB are achieved at a large input signal power of -5 dBm.

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Section: Methodsmentioning

confidence: 57%

Widely Flatness Gain Bandwidth with Double Pass Parallel Hybrid Fiber Amplifier

Gurkaynak

Al-Mashhadani

Ali

et al. 2021

Preprint

View full text Add to dashboard Cite

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“…However, two major limitations still exist, namely, phase mismatch between amplified signals after these two branches due to the long signal propagation in DCF and possible absence of dispersion compensation in EDF. Another DCF fiber is connected serially to the EDFA branch in PHFA to overcome these two limitations [15,16,17]. The PHFA design with multiple Raman pump power units (800 mW of 1480 nm and 300 mW of 1495 nm) was reported by [15].…”

Section: Introductionmentioning

confidence: 99%

“…Another DCF fiber is connected serially to the EDFA branch in PHFA to overcome these two limitations [15,16,17]. The PHFA design with multiple Raman pump power units (800 mW of 1480 nm and 300 mW of 1495 nm) was reported by [15]. However, a gain level of only 13.38 dB and a flatness gain bandwidth of 62.5 nm were achieved although high pump power was used.…”

Section: Introductionmentioning

confidence: 99%

“…However, a gain level of only 13.38 dB and a flatness gain bandwidth of 62.5 nm were achieved although high pump power was used. The gain control technique was proposed in the PHFA setup with a maximum Raman pump power of 1.4 W for multiple pump power units [16]. The flatness gain bandwidth and the average gain slightly increased to 65 nm and 16 dB, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…The flatness gain bandwidth and the average gain slightly increased to 65 nm and 16 dB, respectively. Thirty-two input channels were examined in the PHFA design under the same parameters presented by [16] and the system showed acceptable amplification performance in terms of dispersion issue and phase matching [17]. Low and limited flatness gain levels were the main degradation products in previous studies.…”

Section: Introductionmentioning

confidence: 99%

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Widely flatness gain bandwidth with double pass parallel hybrid fiber amplifier

et al. 2021

View full text Add to dashboard Cite

A Widely flatness gainbandwidth with double pass parallel hybrid fiber amplifier is experimentally demonstrated in this study. The proposed design combines serial erbium-Raman fiber amplifier in one branch and Raman fiber amplifier in the second branch. Multiple Raman pump units with a maximum power of 800 mW (250 mW of 1410 nm, 225 mW of 1480 nm, and 325 mW of 1495 nm) are utilized. Pump recycling technique is applied to achieve acceptable pumping efficiency. A maximum flatness gain bandwidth of 80 nm (1525-1605 nm) and average gain level of 22.5 dB are obtained at a small input signal power of -25 dBm and optimum pump power values. By comparison, a wider flatness gain of 90 nm (1520-1610 nm) and average gain level of 11.5 dB are achieved at a large input signal power of -5 dBm.

show abstract

An efficient wide flatness gain bandwidth with parallel hybrid fiber amplifier

Gurkaynak

Al-Mashhadani

et al. 2021

Micro & Optical Tech Letters

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In this article, we experimentally propose an efficient wide flat gain bandwidth with a parallel hybrid fiber amplifier. The setup includes parallel amplifier branches. In the first branch, serial erbium-doped and Raman fiber amplifiers are used. In the second branch, only a Raman fiber amplifier is used. Three Raman pump power units (i.e., 1410, 1480, and 1495 nm) are used to achieve Raman gain at different optical communication bands. At optimum pump powers and at a small-signal power of À30 dBm, an average gain of 18.5 dB with a maximum gain variation of 3 dB and a gain flatness bandwidth of 83 nm, that is, from 1527 to 1610 nm, is achieved. This gain flatness is expanded to 92 nm (1525-1617 nm) at a large input signal power of À5 dBm with an average gain level of 13 dB. In our proposed amplifier, the Raman amplification peaks (1510 and 1595 nm) are chosen to be far from the erbium amplification peak (1530-1570 nm) in order to avoid the overlapping and the saturation in the first amplifier branch. Therefore, due to such wavelength optimization in addition to the recycling the residual Raman pump power, a wide flatness gain bandwidth is achieved for both of low and large input signal powers.

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Optimization of Hybrid Fiber Amplifier Utilizing Combined Serial-Parallel Configuration

Cited by 13 publications

References 6 publications

Widely Flatness Gain Bandwidth with Double Pass Parallel Hybrid Fiber Amplifier

Widely Flatness Gain Bandwidth with Double Pass Parallel Hybrid Fiber Amplifier

Widely flatness gain bandwidth with double pass parallel hybrid fiber amplifier

An efficient wide flatness gain bandwidth with parallel hybrid fiber amplifier

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