Enhanced triple-pass hybrid erbium doped fiber amplifier using distribution pumping scheme in a dual-stage configuration

Almukhtar, Aya A.; Al-Azzawi, Alabbas A.; Cheng, X.S.; Reddy, P. Harshavardhan; Dhar, Anirban; Paul, Mukul Chandra; Ahmad, Harith; Harun, Sulaiman Wadi

doi:10.1016/j.ijleo.2020.164191

Cited by 18 publications

(12 citation statements)

References 21 publications

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“…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: Resultsmentioning

confidence: 58%

“…The new HFA demonstrates enhanced amplifier performance in terms of large fiber span, wide gain flatness bandwidth, and improved pump efficiency [1,2,3,4]. A serial combination was performed first between the two amplifiers to form a serial hybrid-fiber amplifier (SHFA) [5,6,7,8,9]. SHFA generally has one single path with two amplification stages.…”

Section: Introductionmentioning

confidence: 99%

“…However, no flatness gain bandwidth was recorded at small input signal power of -30 dBm and high noise fiugere of 10.6 dB was recrded. At same large input signal power of -10 dBm, a gain level of 19 dB and noise figure of 9.3 dB were achieved by [9]. However, flatness gain bandwidth was reduced to 45 nm (1555-1600) and no study was conducted at low input signal power.…”

Section: Introductionmentioning

confidence: 99%

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Widely flatness gain bandwidth with double pass parallel hybrid fiber amplifier

et al. 2021

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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.

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Section: Resultsmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Widely flatness gain bandwidth with double pass parallel hybrid fiber amplifier

et al. 2021

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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: 58%

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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“…According to [20, 21], the L‐band EDFA requires a longer length of erbium‐doped fibre (EDF) as compared to that of C‐band EDFA. In this respect, a hybrid EDFA in conjunction with multi‐stage configuration has been proven to increase the gain bandwidth and reduce the fibre non‐linearities impairments [22–24].…”

Section: Introductionmentioning

confidence: 99%