Soliton shepherding: All-optical active soliton control over global distances

Widdowson, T.; Malyon, D.J.; Ellis, A.D.; Smith, K.; Blow, K.J.

doi:10.1049/el:19940673

Cited by 31 publications

(7 citation statements)

References 8 publications

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“…3 presents the lowest-order families of such localized solutions on the line in the parameter space . If the pulses (1), (2), and (3), were interacting only with the central pulse but not with each other, then the bifurcation pattern for each of this pulses would be similar to that shown in Fig. 2.…”

Section: Formation Of Bpw Solitonsmentioning

confidence: 74%

“…Thin dotted, dashed, and dash-dotted curves in Fig. 3 correspond to the solitons of three independent pulses (1), (2), and (3), shown with branches of corresponding two-mode solitons of the BPW system with pairwise interactions, , and , respectively (cf. Fig.…”

Section: Formation Of Bpw Solitonsmentioning

confidence: 99%

“…For any bit-parallel optical fiber transmission, the crucial problem is maintaining the alignment of pulses corresponding to parallel bits of the same word. Unlike the fiber ribbon cable, a single-fiber BPW link presents a unique possibility of dynamical control of the pulse alignment by employing the so-called pulse shepherding effect [2], [3]. This effect arises from the interaction of copropagating pulses through the nonlinear cross-phase-modulation (XPM) effect.…”

Section: Introductionmentioning

confidence: 99%

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Multichannel soliton transmission and pulse shepherding in bit-parallel-wavelength optical fiber links

Ostrovskaya

Kivshar

Mihalache

et al. 2002

IEEE J. Select. Topics Quantum Electron.

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We study basic principles of the bit-parallel-wavelength (BPW) pulse transmission in multichannel single-mode optical fiber links for high-performance computer networks. We develop a theory of the pulse shepherding effect that allows simultaneous propagation of pulses in parallel bit slots by binding them into a multicomponent BPW soliton. We describe families of the BPW solitons and bifurcation cascades in a system of incoherently coupled nonlinear Schrödinger equations that model the multichannel multiwavelength transmission in a single-mode optical fiber. We demonstrate high robustness of the composite BPW solitons, due to their underlying linear stability, to a moderate pulse walkoff.

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Section: Formation Of Bpw Solitonsmentioning

confidence: 74%

Section: Formation Of Bpw Solitonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multichannel soliton transmission and pulse shepherding in bit-parallel-wavelength optical fiber links

Ostrovskaya

Kivshar

Mihalache

et al. 2002

IEEE J. Select. Topics Quantum Electron.

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“…A nonlinear optical loop mirror (see Section 2.3.3) can act as a fast saturable absorber and reduce the timing jitter of solitons, while also stabilizing their amplitude [202]. Re-timing of a soliton train can also be accomplished by taking advantage of XPM [203]. The technique overlaps the soliton data stream and another pulse train composed of only 1 bits (an optical clock) inside a fiber where XPM induces a nonlinear phase shift on each soliton in the signal bit stream.…”

Section: Timing Jittermentioning

confidence: 99%

Fiber-Optic Communications

Palais¹

2008

Applications of Nonlinear Fiber Optics

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Soon after the nonlinear effects in optical fibers were observed experimentally, it was realized that they would limit the performance of fiber-optic communication systems [1]. However, nonlinear effects were found to be mostly irrelevant for system design in the 1980s because both the bit rate and link lengths were limited by fiber losses and group-velocity dispersion (GVD). The situation changed dramatically during the 1990s with the advent of optical amplification, dispersion management, and wavelength-division multiplexing (WDM). These advances increased link lengths to beyond 1000 km and single-channel bit rates to beyond 10 Gb/s. As a result, the nonlinear effects in optical fibers became of paramount concern for optimizing a lightwave system [2]- [5]. This chapter focuses on how the nonlinear effects influence the design of WDM lightwave systems. The loss-and dispersion-management techniques are discussed first in Section 7.1 as an introduction to system-related issues. Section 7.2 is then devoted to the impact of five major nonlinear effects stimulated Brillouin and Raman scattering (SBS and SRS), self-and cross-phase modulation (SPM and XPM), and four-wave mixing (FWM). Section 7.3 focuses on optical solitons that employ SPM to advantage and can be used for designing WDM systems. Section 7.4 describes intrachannel nonlinear effects that become important for high-speed channels in pseudo-linear lightwave systems.

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“…Several high speed time synchronization techniques have been proposed, including soliton shepherding [5], the combination of all-optical phase modulation and dispersion using Gaussian and parabolic pulses [6], and square pulse generation and sampling [7]. Several of these techniques are highly energy efficient [7], with minimal excess losses from temporal shaping of signal pulses.…”

Section: Introductionmentioning

confidence: 99%

Time-division-multiplexing using pulse position locking for 100 Gb/s applications

Chow¹,

Ellis²,

Parmigiani³

2009

Opt. Express

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Abstract:Recently, there is a great interest in pushing communication technologies to 100 Gb/s. However, there are still many challenges to perform high speed (> 40 Gb/s) clock and data recovery, and data timedivision-multiplexing (TDM). Here, we propose and numerically analyze an asynchronous optical packet retimer using parabolic or sinusoidal phase modulation and linear dispersion. This scheme is named pulse position locking (PPL). Numerical simulation shows that this scheme can effectively resynchronize input signals with arbitrary delays to the local clock, and reduce input jitter. The scheme can also be applied to TDM 10 Gb/s and 40 Gb/s signals to over 100 Gb/s.

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Soliton shepherding: All-optical active soliton control over global distances

Cited by 31 publications

References 8 publications

Multichannel soliton transmission and pulse shepherding in bit-parallel-wavelength optical fiber links

Multichannel soliton transmission and pulse shepherding in bit-parallel-wavelength optical fiber links

Fiber-Optic Communications

Time-division-multiplexing using pulse position locking for 100 Gb/s applications

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