Performance investigation of 120 Gb/s all-optical logic XOR gate using dual-reflective semiconductor optical amplifier-based scheme

Kotb, Amer; Zoiros, Kyriakos E.; Chen, Guo

doi:10.1007/s10825-018-1243-4

Cited by 37 publications

(5 citation statements)

References 38 publications

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“…This design modification in the active medium cavity conveniently allows an optical signal coming from one (forward) direction to have its intensity increased and at the same time its information content altered as it exits from the other (backward) direction without using additional fiber hardware and fiber connections. The RSOAs downstream amplification and upstream modulation dual functionality together with their capability of providing higher gain with lower injection currents, less polarization dependency, higher modulation linearity, lower noise figure and less temperature sensitivity than their conventional counterparts [2,3] has rendered these elements indispensable for the realization of modern access applications which critically rely on the manipulation of bidirectionally flowing data [4][5][6][7][8][9][10][11][12] and where wavelength-independent, i.e., color-less, operation is highly desired [13]. Still, the data rates that RSOAs can support in these applications are limited by the RSOAs slow direct (electrical) modulation speed, which in turn is constrained by RSOAs finite modulation bandwidth being as low as very few GHz according to evidence based on experimental measurements [14] and numerical simulations [15].…”

Section: Introductionmentioning

confidence: 99%

Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop

et al. 2020

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The feasibility of employing a birefringent fiber loop to enhance the performance of a directly modulated reflective semiconductor optical amplifier is experimentally demonstrated for the first time. The birefringent fiber loop acts as an optical filter of opposite slope than that of the reflective semiconductor optical amplifier electro-optical response and counteracts the finite reflective semiconductor optical amplifier modulation bandwidth of only 0.89 GHz. By proper adjustment of its detuning, the birefringent fiber loop tailors the spectral components that physically manifest due to the reflective semiconductor optical amplifier dynamic perturbation subject to direct modulation in the saturated gain regime, and suppresses the pattern-dependent distortions in the time domain. In this manner, the birefringent fiber loop manages to significantly improve the quality characteristics of the encoded signal at higher data rates than those enabled by the reflective semiconductor optical amplifier limited modulation capability. Owing to the birefringent fiber loop, the reflective semiconductor optical amplifier modulation range is extended to 4 Gb/s at the raw bit error rate of 1.0×10−9, and to 11 Gb/s at the forward error correction limit of 3.8×10−3. These results, which are unique against the evaluation criterion adopted in the first case, and the modulation speed achieved with post-filtering schemes in the second, highlight the beneficial role that the birefringent fiber loop can play in supporting reflective semiconductor optical amplifier operation for intensity amplification and modulation purposes.

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Section: Introductionmentioning

confidence: 99%

Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop

et al. 2020

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“…7(d). The impact of ASE noise has been added numerically to the XOR output power [30][31][32][33] in order to obtain realistic results.…”

Section: Xor Resultsmentioning

confidence: 99%

Theoretical Implementation of All-Optical XOR Gate at 160 Gb/s Using Semiconductor Optical Amplifiers-Based Turbo-Switched Mach-Zehnder Interferometer

Kotb¹,

Guo²

2018

Journal of Advanced Optics &Amp; Photonics

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The implantation of an all-optical eXclusive-OR (XOR) gate run at 160 Gb/s using semiconductor optical amplifiers (SOAs)-based turbo-switched Mach-Zehnder interferometer (TS-MZI) is theoretically investigated and verified. The dependence of the quality factor (QF) on the signal and SOA key operating parameters is examined and assessed, including the impact of amplified spontaneous emission in order to obtain realistic results. A higher QF is obtained when using SOAs-based TS-MZI than when using conventional SOAs-based MZI.

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“…The all-optical non-inverted parity generator and checker based on SOAs is shown in Figure 1. From the principle of the optical generator and checker circuit, we found that it can be composed of XOR [14][15][16] and XNOR [17,18] gate, the dotted line section, and the entire working in Figure 1 correspond to the parity generator and checker, respectively.…”

Section: Principlementioning

confidence: 99%

“…Due to the integration of potential and good non-linear characteristics of semiconductor optical amplifiers, people have a strong research interest. There are extensive studies in all-optical signal processing and all-optical calculations, such as switches, clocked flip-flops [13], logic gates [14][15][16][17][18], subtracter and adder [19][20][21][22], decoder/encoder [20,23], and comparator [23,24]. It can be seen from the research of various all-optical technologies that semiconductor optical amplifiers have broad application prospects in future optical communication systems.…”

Section: Introductionmentioning

confidence: 99%

All-Optical Non-Inverted Parity Generator and Checker Based on Semiconductor Optical Amplifiers

Han

Chen

et al. 2021

Applied Sciences

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An all-optical non-inverted parity generator and checker based on semiconductor optical amplifiers (SOAs) are proposed with four-wave mixing (FWM) and cross-gain modulation (XGM) non-linear effects. A 2-bit parity generator and checker using by exclusive NOR (XNOR) and exclusive OR (XOR) gates are implemented by first SOA and second SOA with 10 Gb/s return-to-zero (RZ) code, respectively. The parity and check bits are provided by adjusting the center wavelength of the tunable optical bandpass filter (TOBPF). A saturable absorber (SA) is used to reduce the negative effect of small signal clock (Clk) probe light to improve extinction ratio (ER) and optical signal-to-noise ratio (OSNR). For Pe and Ce (even parity bit and even check bit) without Clk probe light, ER and OSNR still maintain good performance because of the amplified effect of SOA. For Po (odd parity bit), ER and OSNR are improved to 1 dB difference for the original value. For Co (odd check bit), ER is deteriorated by 4 dB without SA, while OSNR is deteriorated by 12 dB. ER and OSNR are improved by about 2 dB for the original value with the SA. This design has the advantages of simple structure and great integration capability and low cost.

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Performance investigation of 120 Gb/s all-optical logic XOR gate using dual-reflective semiconductor optical amplifier-based scheme

Cited by 37 publications

References 38 publications

Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop

Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop

Theoretical Implementation of All-Optical XOR Gate at 160 Gb/s Using Semiconductor Optical Amplifiers-Based Turbo-Switched Mach-Zehnder Interferometer

All-Optical Non-Inverted Parity Generator and Checker Based on Semiconductor Optical Amplifiers

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