Semiconductor Optical Amplifiers

Dutta, Niloy K.; Wang, Qiang

doi:10.1142/5879

Cited by 98 publications

(66 citation statements)

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“…All optical logic gates are very important in signal regeneration, addressing, switching and data encoding [1].They serve a vital part in upcoming high-speed communication system [2]. In recent years, some prevalent optical logic gates systems have been studied which are Mach-Zehnder interferometer (MZI) [3,4], dual semiconductor-optical amplifier (SOA) [1], and ultrafast nonlinear interferometer (UNI) [5].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of XOR Logic Gate Based on Two-Photon Absorption

et al. 2016

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Abstract. Two-photon absorption with high intensity pump beam occurs in a SOA depends on fast phase change of a weak probe signal. This work analysed optical XOR logic function using two-photon absorption induced fast phase change. A rate equation for SOA and both input data signals A and B with high intensity, configured in the form of MZI has also been proved. The model shows that XOR operation at 10 Gb/s with good signal to noise ratio is obtained with high input intensities. The result on the generation of XOR indicates that operations on 10 Gb/s with a high signal to noise ratio can easily be implemented. The average input power into the SOA is 20 dbm corresponding to the peak power of 5.5 dBm at 10 Gb/s when the width of the input pulse 3.6 ps. The short narrow pulse width is utilised in the study for stronger effect of two-photon absorption.

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Section: Introductionmentioning

confidence: 99%

Design and Analysis of XOR Logic Gate Based on Two-Photon Absorption

et al. 2016

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“…The development of all-optical logic technology is important for a wide range of applications in all-optical networks, including high-speed all-optical packet routing and optical encryption [2]. An important step in the development of all-optical logic technology, which includes key functionalities at the fundamental and system levels such as buffering, demultiplexing, clock recovery, packet processing, wavelength conversion, data regeneration, and optical encryption/decryption, is the demonstration of optical logic elements that can operate at ultrahigh speeds [3].…”

Section: Introductionmentioning

confidence: 99%

All-Optical Binary Full Adder Using Logic Operations Based on the Nonlinear Properties of a Semiconductor Optical Amplifier

Kaur

Kaler

Kamal

2015

Journal of the Optical Society of Korea

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We propose a new and potentially integrable scheme for the realization of an all-optical binary full adder employing two XOR gates, two AND gates, and one OR gate. The XOR gate is realized using a Mach-Zehnder interferometer (MZI) based on a semiconductor optical amplifier (SOA). The AND and OR gates are based on the nonlinear properties of a semiconductor optical amplifier. The proposed scheme is driven by two input data streams and a carry bit from the previous less-significant bit order position. In our proposed design, we achieve extinction ratios for Sum and Carry output signals of 10 dB and 12 dB respectively. Successful operation of the system is demonstrated at 10 Gb/s with return-to-zero modulated signals.

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“…All-optical processing has many applications, such as wavelength conversation, add-drop multiplexing, regeneration clock recovery, simple bit-pattern recognition, address recognition, signal processing, and packet synchronization [1][2][3]. Subtraction is one of the most important operations in Boolean functions and is used in binary subtraction, binary counting, arithmetic logic units, encryption, and decryption in security networks.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a High-Speed All-Optical Subtractor using a Quantum-Dot Semiconductor Optical Amplifier-Based Mach-Zehnder Interferometer

Salehi¹,

Taherian²

2014

Journal of the Optical Society of Korea

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This paper presents the simulation and design of an all-optical subtractor using a quantum-dot semiconductor optical amplifier Mach-Zehnder interferometer (QD-SOA MZI) structure consisting of two cascaded switches, the first of which produces the differential bit. Then the second switch produces the borrow bit by using the output of the first switch and the subtrahend data stream. Simulation results were obtained by solving the rate equations of the QD-SOA. The effects of QD-SOA length, peak power and current density have been investigated. The designed gate can operate at speeds of over 250 Gb/s. The simulation results demonstrate a high extinction ratio and a clear and wide-opening eye diagram.

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Semiconductor Optical Amplifiers

Cited by 98 publications

References 0 publications

Design and Analysis of XOR Logic Gate Based on Two-Photon Absorption

Design and Analysis of XOR Logic Gate Based on Two-Photon Absorption

All-Optical Binary Full Adder Using Logic Operations Based on the Nonlinear Properties of a Semiconductor Optical Amplifier

Performance Analysis of a High-Speed All-Optical Subtractor using a Quantum-Dot Semiconductor Optical Amplifier-Based Mach-Zehnder Interferometer

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