Nonlinear photonic waveguides for on-chip optical pulse compression

Tan, Dawn T. H.; Agarwal, Anuradha M.; Kimerling, Lionel C.

doi:10.1002/lpor.201400420

Cited by 30 publications

(16 citation statements)

References 103 publications

(165 reference statements)

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“…More recently, compact integration, leading to high-efficiency and low-power operation, has been achieved using nonlinear photonic chips for all-optical generation and signal processing [5][6][7][8][9]. For Kerr-type nonlinearity, strong nonlinear effects can be realized by increasing the nonlinear coefficient γ .…”

Section: Introductionmentioning

confidence: 99%

Figure of merit for Kerr nonlinear plasmonic waveguides

Sterke

Palomba

2016

Laser & Photonics Reviews

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Plasmonic waveguides are promising in many applications because of their subwavelength field confinement, which can strongly enhance light-matter interactions. Nevertheless, how to efficiently evaluate their Kerr nonlinear performance is still an open question because of the presence of relatively large linear losses. Here a simple and versatile figure of merit (FOM) is proposed for Kerr nonlinear waveguides with linear losses. To derive the FOM, a generalized full-vectorial nonlinear Schrödinger equation governing nonlinear pulse propagation in a lossy waveguide is developed, and an approximate analytic solution of the degenerate four wave mixing conversion efficiency is derived and validated. The effectiveness of the FOM is verified with an all-plasmonic and a hybrid-plasmonic waveguide configuration. Rigorous results show that the optimal waveguide length for the highest conversion efficiency is ln 3 times the attenuation length. At this length, the upper limits of the conversion efficiency and the nonlinear phase shift are determined by the FOM. These results provide fundamental theory and useful guidance in exploring plasmonic waveguides for nonlinear optical applications.

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Section: Introductionmentioning

confidence: 99%

Figure of merit for Kerr nonlinear plasmonic waveguides

Sterke

Palomba

2016

Laser & Photonics Reviews

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“…Compression or stretching of transform limited pulses involves frequency manipulation. Optical pulse temporal compression has been theoretically discussed and experimentally demonstrated using different approaches in the last years 101 . A FWM 102 , XPM 37 or electrooptic modulation 103 induced time lenses were used to build a temporal telescope with compression factors up to 27 102 .…”

Section: Bandwidth/time Duration Manipulationmentioning

confidence: 99%

Front-induced transitions

et al. 2019

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Moving refractive index fronts in dispersive waveguides is a special type of spatio-temporal modulation. The interaction of light with such fronts can be described in terms of an indirect transition where the frequency and wavenumber of a guided mode both are changed. In recent years front induced transitions were used in dispersion engineered waveguides for frequency conversion, optical delays, and bandwidth and pulse duration manipulation. These concepts have originated from different research areas of photonics, such as nonlinear fiber optics, slow light waveguides, plasma physics, moving media and relativistic effects. Here, we would like to review these concepts, providing a unifying theoretical description and highlight the potential of this exciting research field for light manipulation in guided optics.

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“…On the other hand, on-chip nonlinear optics including pulse compression [18]- [20], supercontinuum generation [21], and optical frequency comb [22]- [24] have been attracting extensive attention. The used optical materials mainly include silicon, chalcogenide, and silicon nitride, etc.…”

Section: Introductionmentioning

confidence: 99%

Passive Generation of the Multi-Wavelength Parabolic Pulses in Tapered Silicon Nanowires

Mei

Yuan

et al. 2020

IEEE Access

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In this paper, passive generation of the multi-wavelength parabolic pulses (PPs) in tapered silicon nanowires (TSNs) is numerically investigated. The coupled inhomogeneous nonlinear Schrödinger equation (INLSE) is derived in the context of TSN to model the multi-wavelength PP generation. The TSN is designed based on the well-known self-similar theory that the group-velocity dispersion is decreased while the nonlinear coefficient is unchanged along the propagative direction. While the pump wavelengths for three input pulses are specially set with equal intervals of 18, 12, and 6 nm, the time-domain profiles are aligned at the same position. Simulation results show that except for wavelength interval, the waveguide length is also a critical factor that influences the quality of generated PP. Both of them reshape the pulse profile by the means of walk-off effect which depends on the cross-phase modulation between multiple pulses. By properly optimizing the input parameters of Gaussian pulses as well as the center wavelength interval and TSN length, we prove that the generation of two-even three-wavelength PPs with high-quality is feasible. INDEX TERMS Multi-wavelength parabolic pulses, self-similar theory, tapered silicon nanowires.

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Nonlinear photonic waveguides for on-chip optical pulse compression

Cited by 30 publications

References 103 publications

Figure of merit for Kerr nonlinear plasmonic waveguides

Figure of merit for Kerr nonlinear plasmonic waveguides

Front-induced transitions

Passive Generation of the Multi-Wavelength Parabolic Pulses in Tapered Silicon Nanowires

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