All-optical parity checker with bit-differential delay

Poustie, A.; Blow, K.J.; Kelly, Anthony E.; Manning, R.J.

doi:10.1016/s0030-4018(99)00070-x

Cited by 68 publications

(26 citation statements)

References 12 publications

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“…Examples of their work include binary counters and parity checkers [91], [92]. No doubt all-optical logic for optical networks is an exciting field of research where we can expect much innovation.…”

Section: All-optical Logical Gatesmentioning

confidence: 99%

Semiconductor optical amplifier-based all-optical gates for high-speed optical processing

Stubkjaer

2000

IEEE J. Select. Topics Quantum Electron.

456

161

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Abstract-Semiconductor optical amplifiers are useful building blocks for all-optical gates as wavelength converters and OTDM demultiplexers. This paper reviews the progress from simple gates using cross-gain modulation and four-wave mixing to the integrated interferometric gates using cross-phase modulation. These gates are very efficient for high-speed signal processing and will open up interesting new areas, such as all-optical regeneration and high-speed all-optical logic functions.Index Terms-Add/drop multiplexer, optical gate, optical processing, semiconductor optical amplifier, wavelength converter.

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Section: All-optical Logical Gatesmentioning

confidence: 99%

Semiconductor optical amplifier-based all-optical gates for high-speed optical processing

Stubkjaer

2000

IEEE J. Select. Topics Quantum Electron.

456

161

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“…It has been shown by combining switches based on nonlinear interference effects that more sophisticated all-optical logic functionalist can be realized. In particular, proof of concept has been given for optical address recognizers [13]- [15], optical bit-level synchronizers [16], [17], optical clock recovery circuits [18], optical shift registers with inverters [19], [20], optical memories with read-write abilities [21]- [24], binary half-and full adders [25], [26], pseudorandom number generators [27], optical parity checkers [28], and optical packet switches [29].…”

mentioning

confidence: 99%

All-Optical Logic Based on Ultrafast Gain and Index Dynamics in a Semiconductor Optical Amplifier

Dorren

Yang

Mishra

et al. 2004

IEEE J. Select. Topics Quantum Electron.

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Abstract-We investigate nonlinear carrier dynamics in a multiquantum-well semiconductor optical amplifier (SOA) in the context of ultrafast all-optical logic. A rate-equation model is presented that accounts for two-photon absorption, free-carrier absorption, self-and cross phase modulation, carrier heating, spectral, spatial hole burning, and self-and cross polarization modulation. The nonlinear refractive index dynamics is investigated theoretically and experimentally. We find nonlinear phase changes larger than radians, which recovers on a timescale in the order of 1 ps. We also investigate a nonlinear AND gate that consists of an SOA that is placed in an asymmetric Mach-Zehnder interferometer. We show that the gate can be operated using 800-fJ optical pulses with duration of 200 fs while having a contrast ratio larger than 11 dB.Index Terms-Optical logic, optical signal processing ultrafast carrier dynamics, semiconductor optical amplifier.

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“…Work has also been presented on the realization of an all-optical flip-flop in which lasing is induced in one or other of two SOAs to signify the SET or RESET states [58]. Additional optical functionalities such as parity checking [59], pseudorandom number generation [60], and clock division [61,62] have all been realized using all-optical gates based on SOAs.…”

Section: D Optical Logicmentioning

confidence: 99%

Semiconductor optical amplifiers: performance and applications in optical packet switching [Invited]

2004

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Semiconductor optical amplifiers (SOAs) are a versatile core technology and the basis for the implementation of a number of key functionalities central to the evolution of highly wavelength-agile all-optical networks. We present an overview of the state of the art of SOAs and summarize a range of applications such as power boosters, preamplifiers, optical linear (gain-clamped) amplifiers, optical gates, and modules based on the hybrid integration of SOAs to yield high-level functionalities such as all-optical wavelength converters/regenerators and small space switching matrices. Their use in a number of proposed optical packet switching situations will also be highlighted.

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All-optical parity checker with bit-differential delay

Cited by 68 publications

References 12 publications

Semiconductor optical amplifier-based all-optical gates for high-speed optical processing

Semiconductor optical amplifier-based all-optical gates for high-speed optical processing

All-Optical Logic Based on Ultrafast Gain and Index Dynamics in a Semiconductor Optical Amplifier

Semiconductor optical amplifiers: performance and applications in optical packet switching [Invited]

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