Dispersion-Managed Solitons and Chirped Return to Zero

Menyuk, Curtis R.; Carter, Gary M.; Kath, William L.; Mu, R.-M.

doi:10.1016/b978-012395173-1/50007-4

Cited by 10 publications

(3 citation statements)

References 54 publications

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“…The DMS system is highly nonlinear, meaning that both dispersion and nonlinearity determine the signal evolution, while the CRZ system is quasilinear and the evolution is mostly determined by dispersion [14], [15]. Thus we are studying the four split-step implementations using two different types of systems.…”

Section: Single-channel Systemsmentioning

confidence: 99%

Optimization of the split-step fourier method in modeling optical-fiber communications systems

Sinkin

Holzlöhner

Zweck

et al. 2003

J. Lightwave Technol.

487

253

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Abstract-We studied the efficiency of different implementations of the split-step Fourier method for solving the nonlinear Schrödinger equation that employ different step-size selection criteria. We compared the performance of the different implementations for a variety of pulse formats and systems, including higher order solitons, collisions of soliton pulses, a single-channel periodically stationary dispersion-managed soliton system, and chirped return to zero systems with single and multiple channels. We introduce a globally third-order accurate split-step scheme, in which a bound on the local error is used to select the step size. In many cases, this method is the most efficient when compared with commonly used step-size selection criteria, and it is robust for a wide range of systems providing a system-independent rule for choosing the step sizes. We find that a step-size selection method based on limiting the nonlinear phase rotation of each step is not efficient for many optical-fiber transmission systems, although it works well for solitons. We also tested a method that uses a logarithmic step-size distribution to bound the amount of spurious four-wave mixing. This method is as efficient as other second-order schemes in the single-channel dispersion-managed soliton system, while it is not efficient in other cases including multichannel simulations. We find that in most cases, the simple approach in which the step size is held constant is the least efficient of all the methods. Finally, we implemented a method in which the step size is inversely proportional to the largest group velocity difference between channels. This scheme performs best in multichannel optical communications systems for the values of accuracy typically required in most transmission simulations.

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Section: Single-channel Systemsmentioning

confidence: 99%

Optimization of the split-step fourier method in modeling optical-fiber communications systems

Sinkin

Holzlöhner

Zweck

et al. 2003

J. Lightwave Technol.

487

253

View full text Add to dashboard Cite

show abstract

“…For example, RZ formats rather than non-return-to-zero (NRZ) formats have been applied in long-haul fiber transmission systems to extend transmission distance due to a possible higher tolerance to many fiber transmission impairments [38,39]. As a result, the characteristics of RZ pulses in such systems play a critical role in optimizing system performance.…”

Section: Tunable Optical Rz-to-nrz Format Conversionmentioning

confidence: 99%

Spectral line‐by‐line shaping for optical and microwave arbitrary waveform generations

Huang

Jiang

Leaird

et al. 2008

Laser & Photonics Reviews

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Spectral line-by-line shaping is a key enabler towards optical arbitrary waveform generation, which promises broad impact both in optical science and technology. In this paper, generation of optical and microwave arbitrary waveforms using the spectral line-by-line shaping technique is reviewed. Compared to conventional pulse shaping, significant new physics arises in the line-by-line regime, where the shaped pulse fields generated from one laser pulse now overlap with those generated from adjacent pulses. This leads to coherent interference effects related to the properties of optical frequency combs which serve as the source in these experiments. We explore such effects in a series of experiments using several different high-repetitionrate optical combs, including harmonically mode-locked lasers and continuous-wave lasers that are externally phase modulated either with or without the help of an optical cavity. As an application of line-by-line pulse shaping, we describe generation of microwave electrical arbitrary waveforms that can be reprogrammed at rates approaching 10 GHz.Significance of line-by-line shaping: combining optical frequency combs with spectral pulse shaping

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“…Dependendo se o chirp é o mesmo para todos os bits ou se toma valores opostos para bits adjacentes, o formato resultante recebe a denominação de RZ com chirp (CRZ) ou RZ com chirp alternado (ACRZ -Alternate-chirp RZ), respectivamente [1,2,[76][77][78][79]. Os formatos CRZ e ACRZ são gerados usando modulação de três estágios, consistindo de um modulador de dados NRZ, um modelador de pulso RZ controlado senoidalmente, livre de chirp e um modulador de fase adicional controlado por um sinal senoidal.…”

Section: Keying)unclassified

Estudo de formatos especiais na modulação digital para comunicações ópticas

Silveira¹

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Dispersion-Managed Solitons and Chirped Return to Zero

Cited by 10 publications

References 54 publications

Optimization of the split-step fourier method in modeling optical-fiber communications systems

Optimization of the split-step fourier method in modeling optical-fiber communications systems

Spectral line‐by‐line shaping for optical and microwave arbitrary waveform generations

Estudo de formatos especiais na modulação digital para comunicações ópticas

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