Analysis of non-linear refractive index influences on four-wave mixing conversion efficiency in semiconductor optical amplifiers

Hosseini, Seyed Hadi; Razaghi, Mohammad; Das, Narottam

doi:10.1016/j.optlastec.2011.08.016

Cited by 8 publications

(10 citation statements)

References 17 publications

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“…(3) [9][10][11][12][13][14] is used for the simulation of pulse propagation with different input pulse shapes in SOAs. The MNLSE uses the complex envelope V z , τ ( ) function of an optical pulse which is given in Eq.…”

Section: Modified Nonlinear Schrödinger Equation (Mnlse) For Soa Modementioning

confidence: 99%

“…We assumed the same values of A 1, A 2, B 1 and B 2 as for an AlGaAs/GaAs bulk SOA [9][10][11][12][13][14]. Generally, the fast Fourier transformation BPM (FFT-BPM) is used for analysis of the optical pulse propagation in optical fibres by successive iterations of the Fourier transformation and the inverse Fourier transformation.…”

Section: Modified Nonlinear Schrödinger Equation (Mnlse) For Soa Modementioning

confidence: 99%

“…Therefore, it is not possible to separate (3) into the linear propagation term and phase compensation term, and it is difficult to calculate (3) using the FFT-BPM. For this reason, we have used the FD-BPM [9][10][11][12][13][14] to solve this MNLSE.…”

Section: Modified Nonlinear Schrödinger Equation (Mnlse) For Soa Modementioning

confidence: 99%

“…This analysis is based on the MNLSE considering the non-linearities in SOA, such as self-phase modulation (SPM), two-photon absorption (TPA), group velocity dispersion (GVD), carrier depletion (CD), carrier heating (CH), spectral-hole burning (SHB), gain spectrum dynamics, and gain saturation in the SOA [5,7]. To solve the MNLSE, the finite-difference beam propagation method (FD-BPM) is used because of its short convergence time and excellent accuracy of the simulated results [8][9][10][11][12][13][14][15][16]. For simulation of pulse propagation with small propagation steps, FD-BPM is considered as the best method compared to others [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…To solve the MNLSE, the finite-difference beam propagation method (FD-BPM) is used because of its short convergence time and excellent accuracy of the simulated results [8][9][10][11][12][13][14][15][16]. For simulation of pulse propagation with small propagation steps, FD-BPM is considered as the best method compared to others [8][9][10][11][12][13][14]. In this paper, we have numerically investigated and compared the output waveforms or Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/optcom propagated pulses characteristics and the gain saturation characteristics for different types of input pulse shapes in SOAs.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of pulse propagation and gain saturation characteristics among different input pulse shapes in semiconductor optical amplifiers

Barua

Das

Nordholm

et al. 2016

Optics Communications

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a b s t r a c tThis paper presents the pulse propagation and gain saturation characteristics for different input optical pulse shapes with different energy levels in semiconductor optical amplifiers (SOAs). A finite-difference beam propagation method (FD-BPM) is used to solve the modified nonlinear Schrödinger equation (MNLSE) for the simulation of nonlinear optical pulse propagation and gain saturation characteristics in the SOAs. In this MNLSE, the gain spectrum dynamics, gain saturation are taken into account those are depend on the carrier depletion, carrier heating, spectral hole-burning, group velocity dispersion, self-phase modulation and two photon absorption. From this simulation, we obtained the output waveforms and spectra for different input pulse shapes considering different input energy levels. It has shown that the output pulse shape has changed due to the variation of input parameters, such as input pulse shape, input pulse width, and input pulse energy levels. It also shown clearly that the peak position of the output waveforms are shifted toward the leading edge which is due to the gain saturation of the SOA. We also compared the gain saturation characteristics in the SOA for different input pulse shapes.

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Section: Modified Nonlinear Schrödinger Equation (Mnlse) For Soa Modementioning

confidence: 99%

Section: Modified Nonlinear Schrödinger Equation (Mnlse) For Soa Modementioning

confidence: 99%

Section: Modified Nonlinear Schrödinger Equation (Mnlse) For Soa Modementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of pulse propagation and gain saturation characteristics among different input pulse shapes in semiconductor optical amplifiers

Barua

Das

Nordholm

et al. 2016

Optics Communications

View full text Add to dashboard Cite

show abstract

Low-power, high-performance, and small-footprint, single-pump optical parametric amplifier for photonic integrated circuits

Kumar

Sen

2022

Journal of Applied Physics

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A single-pump optical parametric amplifier (OPA) is modeled using a p-toluene sulfonate (PTS) filled silicon-based slotted photonic crystal waveguide (SPCW). The PTS-SPCW has CMOS-process compatibility and offers slow-light enhanced nonlinearity of PTS due to extreme optical confinement in SPCW. The adverse effects of two-photon absorption and free carrier absorption are absent in PTS in the standard optical communication window. The coupled nonlinear Schrödinger’s equations have been modified to analyze the OPA under slow-light propagation. Performances of the OPA are evaluated in both the high- and low- dispersive zones of the structure. The high dispersive zone exhibits high group indices to the operating waves, leading to a high parametric gain ([Formula: see text] dB) and high conversion efficiency ([Formula: see text] dB) utilizing a 350 [Formula: see text] long PTS-SPCW and a pump power of 65 mW. However, this zone degrades the shape of a [Formula: see text] ps pulse due to self-phase and cross-phase modulation. On the other hand, in the low dispersive zone, a similar parametric gain and conversion efficiency (both [Formula: see text] dB) are attained utilizing a 1250 [Formula: see text] long PTS-SPCW and a pump power of 150 mW. Nevertheless, this zone degrades a 5 ps pulse only after a distance of 1500 [Formula: see text]. The analyses show a 30 nm bandwidth considering a gain above 30 dB. Investigation of the effect of fabrication imperfections shows excellent performance sustainability of the OPA up to a random error of 40 nm. These remarkable performances make this low-powered, small-footprint OPA suitable for achieving tunable optical amplification in photonic integrated circuits.

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Demonstration and optimisation of an ultrafast all-optical AND logic gate using four-wave mixing in a semiconductor optical amplifier

Razaghi¹,

Nosratpour²,

Das³

2013

Quantum Electron.

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Analysis of non-linear refractive index influences on four-wave mixing conversion efficiency in semiconductor optical amplifiers

Cited by 8 publications

References 17 publications

Comparison of pulse propagation and gain saturation characteristics among different input pulse shapes in semiconductor optical amplifiers

Comparison of pulse propagation and gain saturation characteristics among different input pulse shapes in semiconductor optical amplifiers

Low-power, high-performance, and small-footprint, single-pump optical parametric amplifier for photonic integrated circuits

Demonstration and optimisation of an ultrafast all-optical AND logic gate using four-wave mixing in a semiconductor optical amplifier

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