Performance enhancement of pre-spectrum slicing technique for wavelength conversion

Kharraz, Osayd M.; Ahmad, Harith; Mohammad, Abu Bakar; Forsyth, David I.; Dernaika, Mohamad; Harun, Sulaiman Wadi

doi:10.1016/j.optcom.2015.03.051

Cited by 3 publications

(5 citation statements)

References 24 publications

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“…In this proposed scheme, the wavelength conversion span can be tuned only by varying the modulation frequency applied into the intensity modulator, which means a remarkable improvement when compare with previous works [8]. Varying the PC position these sidebands could appear or not due to the strong dependence between modulation and polarization.…”

Section: Resultsmentioning

confidence: 93%

“…In this proposed scheme, the wavelength conversion span can be tuned only by varying the modulation frequency applied to the intensity modulator, which means a remarkable improvement when compared with previous works [8].…”

Section: Resultsmentioning

confidence: 95%

“…There are a number of all-fiber wavelength converters based on FWM in use today; however, they present several disadvantages, such as the crosstalk noise produced by the satellite signal [5,6], the need for highly nonlinear optical fibers [7][8][9] and their level of complexity [10].…”

Section: Introductionmentioning

confidence: 99%

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Wavelength converter using a highly Er-doped optical fiber ring laser

Pérez-Herrera¹,

Lopez-Amo²,

Rodríguez³

et al. 2018

Laser Phys.

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This work presents an all-fiber wavelength converter based on a highly Er-doped fiber laser which has been experimentally demonstrated. Frequencies from several kilohertz up to tens of gigahertz have been investigated. Making use of the gain competition in the amplifying medium, the wavelength conversion can be carried out over not only one lasing wavelength but over several ones. These analyses have been also carried out for more than one all-fiber ring structure, demonstrating the viability of this wavelength converter. To the best of our knowledge, this is the first time an Er-doped fiber wavelength converter has been validated.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 95%

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Wavelength converter using a highly Er-doped optical fiber ring laser

Pérez-Herrera¹,

Lopez-Amo²,

Rodríguez³

et al. 2018

Laser Phys.

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show abstract

“…The proposed technique can furthermore be used for gain and nonlinearity response characterizations of all SOA types -at almost no cost and without recourse to tunable, high power and bulky coherent sources. This scheme can also be employed to produce GC multi-channels for employment in wavelength division multiplexing passive optical networks systems [12], [25]- [27].…”

Section: Tablementioning

confidence: 99%

“…The carrier lifetime of SOAs is inversely proportional to saturation intensity of light, in which, efficient saturations occurring in gain media lead to higher stimulated recombination rates. The pre-spectrum sliced seed light (PS-SL) technique has been introduced to improve the power efficiency of the conventional spectrum-slicing seed light (SS-SL) technique [12], [13] and to also enhance the modulation bandwidths of amplifiers [14]. The PS-SL technique leads to efficient saturation occurring in gain-clamped (GC) configurations.…”

Section: Introductionmentioning

confidence: 99%

Acceleration of Carrier Lifetime in Gain-Clamped Semiconductor Optical Amplifiers

et al. 2018

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A new method to accelerate the carrier lifetime in semiconductor optical amplifiers (SOAs) is experimentally demonstrated. The four-wave mixing (FWM) effect is induced without recourse to external optical light sources. A pair of fiber Bragg gratings is utilized to generate pre-spectral sliced seed light channels as FWM inputs, by reflecting the backward amplified spontaneous emission from the SOA in a gain-clamped configuration. The theory predicts a three times shorter carrier lifetime, compared to coherent inputs in a travelling-wave arrangement. Furthermore, this method can be a more accurate measure of the nonlinear parameters of SOAs rather than conventional techniques, owing to the polarization-independent nature of the corresponding incoherent products.

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