Solitons and spectral broadening in long silicon-on- insulator photonic wires

Ding, Wei; Benton, Christopher; Gorbach, Andrey V.; Wadsworth, William J.; Knight, Jonathan C.; Skryabin, Dmitry V.; Gnan, M.; Sorrel, M; Rue, R.M. De La

doi:10.1364/oe.16.003310

Cited by 37 publications

(16 citation statements)

References 16 publications

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“…This criterion was previously used as a test for soliton formation in silicon photonic waveguides. 9 The values obtained for the second and third-order dispersion coefficients at a wavelength of 1.55 μm are β 2 ¼ −8291 ps 2 ∕m and β 3 ¼ −78 ps 3 ∕m. For Gaussian pulses, the criterion for testing the relative magnitudes of FCA, FCD, and TPA is given by the dimensionless parameter 17 :…”

Section: The Photonic Crystal Waveguide As a Soliton Propagatormentioning

confidence: 85%

“…2,4 By carefully engineering the photonic dispersion relationship, one may obtain unique opportunities for the realization of devices that exploit slow light effects. 5 Recently, nonlinear effects such as the Raman effect, soliton propagation, TPA, etc., have been observed by several different groups [6][7][8][9][10] in different types of waveguide structures. Self-phase modulation (SPM), which leads to chirping and spectral broadening of ultra-short pulses, has also been previously reported, in silicon optical waveguides.…”

Section: Introductionmentioning

confidence: 96%

“…9 It is important to mention that, as optical pulses propagate through photonic crystal waveguides; their evolution in both the time and frequency domains is governed by the interplay of linear dispersion and nonlinearity. These effects are characterized by the characteristic lengths: namely the GVD length, LD, and the nonlinear length N NL (Ref.…”

Section: Introductionmentioning

confidence: 99%

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Silicon-on-insulator photonic crystal miniature devices with slow light enhanced third-order nonlinearities

2012

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Abstract. The effects of the slow-down factor on third-order nonlinear effects in silicon-oninsulator photonic crystal channel waveguides were investigated. In the slow light regime, with a group index equal to 99, these nonlinear effects are enhanced but the enhancement produced depends on the input peak power level. Simulations indicate the possibility of soliton-like propagation of 1 ps pulses at an input peak power level of 50 mW inside such a photonic crystal waveguide. The increase in the induced phase shift produced by lower group velocities can be used to decrease the size and power requirements needed to operate devices such as optical switches, logic gates, and wavelength translators.

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Section: The Photonic Crystal Waveguide As a Soliton Propagatormentioning

confidence: 85%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Silicon-on-insulator photonic crystal miniature devices with slow light enhanced third-order nonlinearities

2012

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“…A split-step NLSE code [1,[10][11][12] was written by the authors in an effort to demonstrate the challenges of achieving soliton pulse compression in a silicon nano-waveguide. A model was created with MatLab to replicate an ultrashort pulse propagating through a 450*250 nm silicon channel waveguide.…”

Section: Numerical Modeling Of Silicon Nano-waveguides With Two-mentioning

confidence: 99%

Phase-resolved observations of optical pulse propagation in chip-scale silicon nanowires

Marko

Zheng

et al. 2013

Applied Physics Letters

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I. AbstractAn effort was conducted to study temporal soliton pulse propagation in silicon nano-waveguides.These nonlinear phenomenas were studied both numerically and experimentally with phase-resolved Frequency Resolved Optical Gating. Soliton pulse broadening, as well as pulse splitting from twophoton absorption, was observed experimentally, and the simulations matched all of the experimental results. Further simulations with the validated model have demonstrated that compression can be observed in centimeter-length waveguides. This study has demonstrated the feasibility of selfsustaining soliton pulse propagation at substantially shorter length scales than optical fibers, which offers much potential applications with regards to all-optical data transfer and computing. II. IntroductionOptical solitons are undistorted standing waves that can propagate over long distances undistorted, which result as part of the interplay between the nonlinear Kerr effect, and anomalous dispersion [1]. When there is strong SPM interplaying with strong anomalous group velocity dispersion (GVD), then soliton pulse compression may occur [2]. The SPM will cause the leading edge frequencies to be lowered, and the trailing edge frequencies to be raised. At the same time, the anomalous GVD will cause the lowered leading edge frequencies to slow down, and the raised trailing edge frequencies to speed up. This results in the pulse narrowing, or compressing into what is known as the soliton pulse.Soliton pulses within fiber optics is a well-established subject, and it has been used previously for data communication over many kilometers of fiber networks. The primary disadvantage of fibers is simply the long-length scales required for the optical nonlinearities to occur. There would be many advantages to having soliton pulse compression occur at the centimeter or millimeter length scales, which would allow for better optical data transfer and processing within a typical computer chip.

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“…Its group velocity dispersion was measured as described in [4], At the wavelength of 1.56 flm, the waveguide has anomalous group velocity dispersion (GVD), � 2 = -3.01 ±0.10 ps 2 /m, with zero GVD at ),=1600 nm . An Erbium-doped fiber ring laser produces an ultrashort pulse train at 1.56 flm with a repetition rate of 33 MHz.…”

mentioning

confidence: 99%

Time- and frequency-domain measurements of solitons in subwavelength silicon waveguides using cross-correlation

Ding

Gorbach

Wadsworth

et al. 2011

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)

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Solitons and spectral broadening in long silicon-on- insulator photonic wires

Cited by 37 publications

References 16 publications

Silicon-on-insulator photonic crystal miniature devices with slow light enhanced third-order nonlinearities

Silicon-on-insulator photonic crystal miniature devices with slow light enhanced third-order nonlinearities

Phase-resolved observations of optical pulse propagation in chip-scale silicon nanowires

Time- and frequency-domain measurements of solitons in subwavelength silicon waveguides using cross-correlation

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