2020
DOI: 10.3116/16091833/21/1/35/2020
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New dispersion-compensated Raman-amplifier cascade with a single-pump parametric amplifier for dense wavelength-division multiplexing

Abstract: In this work a dispersion-compensated Raman amplifier has been cascaded with a single-pump parametric amplifier to build a dense wavelengthdivision multiplexed (DWDM) system. This hybrid system demonstrates a flat gain in the L-band. Our hybrid has been evaluated for a 25 GHz 96-channel system at 40 Gbps in the band spreading from 189 to 191.375 THz. The results demonstrate the gain larger than 16.9 dB and the gain ripple less than 5.82 dB, with no gainflattening technique used. The novelty of our design lies … Show more

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Cited by 2 publications
(4 citation statements)
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“…Kerr nonlinearity represents the most common form of self-phase modulation, when the refractive index is proportional to the intensity of light. In more general 'non-Kerr' cases, it is proportional to some function of the intensity [1][2][3][4][5]. In other words, the refractive index in the case of Kerr nonlinearity is a constant multiple of the intensity, while in a non-Kerr situation, the response of optical medium sometimes depends on the intensity raised to a positive power or, more generally, it is a sum of two terms, each of which being proportional to the intensity raised to some positive power.…”
Section: Introductionmentioning
confidence: 99%
“…Kerr nonlinearity represents the most common form of self-phase modulation, when the refractive index is proportional to the intensity of light. In more general 'non-Kerr' cases, it is proportional to some function of the intensity [1][2][3][4][5]. In other words, the refractive index in the case of Kerr nonlinearity is a constant multiple of the intensity, while in a non-Kerr situation, the response of optical medium sometimes depends on the intensity raised to a positive power or, more generally, it is a sum of two terms, each of which being proportional to the intensity raised to some positive power.…”
Section: Introductionmentioning
confidence: 99%
“…In practical implementations, the usable bandwidth for long reach transmission is limited by the gain bandwidth of applied amplification technology. In the case of widely used erbium-doped fiber amplifier (EDFA), the gain bandwidth covers only C (1530-1565 nm) and partly L (1565-1625 nm) bands (5)(6)(7)(8)(9)(10). To overcome this limitation, multiple amplification technologies can be used in parallel to form multiband amplifiers and transmission systems [4][5][6][7][8][9].…”
Section: Introductionmentioning
confidence: 99%
“…A very promising approach for mitigating FRA and FOPA drawbacks is hybrid amplification methods that have been extensively studied for various applications [5,8,31,[41][42][43][44][45][46][47][48][49]. This combination is the Raman assisted FOPA (RA-FOPA) amplifier.…”
Section: Introductionmentioning
confidence: 99%
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