All-optical inverted and noninverted wavelength conversion using two-cascaded semiconductor optical amplifiers

Hamié, Ali; Sharaiha, Ammar; Guégan, Mikael; Bihan, Jean Le

doi:10.1109/lpt.2005.846923

Cited by 24 publications

(16 citation statements)

References 7 publications

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“…If the time derivative on the right-hand side of (1) is replaced by central difference approximation and (8a) is applied, the equivalent equation in coordinates is obtained (9) where is the step size defined as , where is the SOA length and is number of section. Based on this new definition, the forward-and backward-propagating fields at each step are related to adjacent steps.…”

Section: Analytical Modelmentioning

confidence: 99%

“…As the right-hand side of (9) is not constant, the Runge-Kutta method is not a proper choice. Furthermore, convergence does not occur if the FDM is used to solve (9).…”

Section: Analytical Modelmentioning

confidence: 99%

“…We use trapezoidal integration for solving (9). If we integrate (9) over and , respectively, with a small propagation step , two tridiagonal simultaneous matrices are obtained.…”

Section: Analytical Modelmentioning

confidence: 99%

“…Counterpropagation modeling of the SOA plays an essential role in modeling systems such as terahertz optical asymmetric demultiplexers [4], optical logic gates [5], [6], modelocked lasers [7], and wavelength converters [8], [9]. Furthermore, using the SOA in counterpropagation configuration shows a faster gain recovery, that is necessary in all-optical high bitrate applications [10], and also improves the output extinction ratio in all-optical switching applications [11].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comprehensive Finite-Difference Time-Dependent Beam Propagation Model of Counterpropagating Picosecond Pulses in a Semiconductor Optical Amplifier

Razaghi

Ahmadi

Connelly

2009

J. Lightwave Technol.

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Abstract-In this paper, we present a numerical model to study counter pulse propagation in semiconductor optical amplifiers. An improved finite-difference beam propagation method for solving the modified nonlinear Schrödinger equation is applied for the first time in the counterpropagation regime. In our model, group velocity dispersion, two-photon absorption, ultrafast nonlinear refraction, and the change in the gain peak wavelength with carrier density are included, which have not been considered simultaneously in previous counterpropagation models. The model is applied to demonstrate how a subpicosecond and picosecond probe pulse shape and spectrum can be modified by a counterpropagating pump pulse. Based on the results obtained by this model, while subpicosecond probe pulses can be compressed by in this scheme, their time-bandwidth product are also improved significantly. Furthermore, the effects of several parameters are analyzed to obtain the proper probe spectral peak shift using counterpropagating probe pulses. The accuracy and computational efficiency of the new scheme are assessed through numerical examples and are shown to be superior to previously published approaches.Index Terms-Counterpropagation, pulse shaping, semiconductor optical amplifier, ultrafast nonlinear effects.

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Section: Analytical Modelmentioning

confidence: 99%

“…As the right-hand side of (9) is not constant, the Runge-Kutta method is not a proper choice. Furthermore, convergence does not occur if the FDM is used to solve (9).…”

Section: Analytical Modelmentioning

confidence: 99%

“…We use trapezoidal integration for solving (9). If we integrate (9) over and , respectively, with a small propagation step , two tridiagonal simultaneous matrices are obtained.…”

Section: Analytical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comprehensive Finite-Difference Time-Dependent Beam Propagation Model of Counterpropagating Picosecond Pulses in a Semiconductor Optical Amplifier

Razaghi

Ahmadi

Connelly

2009

J. Lightwave Technol.

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show abstract

“…Meanwhile, based on the nonlinearities of SOAs, various simultaneously with inverted and noninverted wavelength conversions have been demonstrated. Schemes based on cross gain modulation (XGM) by use of two cascaded SOAs are fit for higher-speed operation but usually employ more than one SOA [1]. Schemes based on cross polarization modulation (XPloM) usually depend on accurate polarization control and power control, which is quite impractical [2].…”

Section: Introductionmentioning

confidence: 99%

Simultaneously all‐optical inverted and noninverted wavelength conversion employing SOA‐based Sagnac interferometer

Chen

et al. 2007

Micro & Optical Tech Letters

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scheme, standard FDTD, and FDTD (2, 4). Also, both fourth-order schemes permit a coarser discretization than other schemes for a given error bound, which, in turn, allow faster computation time and the storage of less data. CONCLUSIONThe proposed symplectic scheme is more efficient in the calculations at the same computational cost than the mostly used fourthorder symplectic scheme in Refs. 2 and 3, and provides a new approach for solving large computational domain electrodynamics problems. ACKNOWLEDGMENTThis work was partially supported by "The National Natural Science Foundation of China (No. 60371041 and 60671051), China".

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Wavelength conversion based on four-wave mixing in a highly nonlinear fiber in ring configuration

et al. 2011

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An efficient system for generating the four-wave mixing (FWM) effect in a short length of a highly nonlinear fiber (HNLF) is demonstrated using a ring configuration, which to our knowledge is the first of its kind to be reported. The conversion efficiency obtained is -4 dB for a HNLF length of 100 m when pumped with a 90 mW diode pump laser at 1490 nm in ring configuration which is the highest ever reported. The signal-to-noise (SNR) ratio is 43 dB. The conversion efficiency and SNR are flat over a span of 20 nm and can provide an effective means of wavelength conversion for telecommunication applications.

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All-optical inverted and noninverted wavelength conversion using two-cascaded semiconductor optical amplifiers

Cited by 24 publications

References 7 publications

Comprehensive Finite-Difference Time-Dependent Beam Propagation Model of Counterpropagating Picosecond Pulses in a Semiconductor Optical Amplifier

Comprehensive Finite-Difference Time-Dependent Beam Propagation Model of Counterpropagating Picosecond Pulses in a Semiconductor Optical Amplifier

Simultaneously all‐optical inverted and noninverted wavelength conversion employing SOA‐based Sagnac interferometer

Wavelength conversion based on four-wave mixing in a highly nonlinear fiber in ring configuration

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