Adiabatic Passage of Light in CMOS-Compatible Silicon Oxide Integrated Rib Waveguides

Menchon-Enrich, R.; Llobera, Andreu; Cadarso, Víctor J.; Mompart, J.; Ahufinger, V.

doi:10.1109/lpt.2011.2180519

Cited by 28 publications

(25 citation statements)

References 11 publications

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“…Therefore, precise requirement in micro/nanofabrication is very stringent, which severely challenges current manufacturing technology. Great efforts have been made to solve the longstanding problem, such as compensation process by Mach–Zehnder interferometer, programmable solution for on‐demand fabrications, and adiabatic passage designs . These approaches usually require external intervention or strict parameter condition that have to sacrifice in some other important aspects, and there is still a high demand for devices with a naturally robust design.…”

Section: Introductionmentioning

confidence: 99%

“…Great efforts have been made to solve the longstanding problem, such as compensation process by Mach–Zehnder interferometer, programmable solution for on‐demand fabrications, and adiabatic passage designs . These approaches usually require external intervention or strict parameter condition that have to sacrifice in some other important aspects, and there is still a high demand for devices with a naturally robust design. More recently, the robust waveguiding and transportation based on TES have been proposed and demonstrated in silicon platform, showing the advantages of topological design in integrated photonic devices.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Robust and Broadband Optical Coupling by Topological Waveguide Arrays

Song

Sun

Chen

et al. 2020

Laser & Photonics Reviews

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Photonic topological states have been exploited to give rise to robust optical behaviors that are quite insensitive to local defects or perturbations, which provide a promising solution for robust photonic integrations. Specifically, for example, optical coupling between waveguides is a universal function in integrated photonics. However, the coupling performance usually suffers from high structure‐sensitivity and challenges current manufacturing for massive production. Here, the topological edge state in a finite Su–Schriffer–Heeger modeled optical waveguide array is explored and robust optical coupling (e.g., directional coupling and beam splitting) is demonstrated, which is quite insensitive to structural variations. It is experimentally proved that even a large discrepancy (21–26% structural deviation) in silicon waveguides gaps has little influence on optical coupling (>90% performance), while conventional counterparts totally break down. Moreover, thanks to such a topological design, the devices show much broader working bandwidth (≈10 times performance improvement) than the conventional ones, greatly favoring the photonic integrations. This work would inspire new families of optical devices with robust and broadband properties that can excite more interesting and useful exploration in both fields, and possibly open a new avenue toward topological devices with unique properties and functionalities.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robust and Broadband Optical Coupling by Topological Waveguide Arrays

Song

Sun

Chen

et al. 2020

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…The remarkable properties of this protocol have already been demonstrated in diverse areas such as chemical reaction dynamics [59], laser-induced cooling of atomic gases [60], light beams propagating in three evanescently coupled optical waveguides [61][62][63][64], sound propagation in sonic crystals [65], and control of a superconducting qubit [66]. In spin-based quantum computing architecture, this protocol can be utilized to transfer qubits coherently across large distances [67].…”

Section: B Spin-selective Stirapmentioning

confidence: 96%

Spin-selective electron transfer in a quantum dot array

2018

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We propose a spin-selective coherent electron transfer in a silicon quantum dot array. Oscillating magnetic fields and temporally controlled gate voltages are utilized to separate the electron wave function into different quantum dots depending on the spin state. We introduce a nonadiabatic protocol based on π pulses and an adiabatic protocol which offer fast electron transfer and robustness against the error in the control-field pulse area, respectively. We also study a shortcut-to-adiabaticity protocol which compromises these two protocols. We show that this scheme can be extended to multielectron systems straightforwardly and used for nonlocal manipulations of electrons.

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“…Thus, if one of the supermodes of the system is excited, either S or A, by smoothly changing the radii of the linear defects along the propagation direction it is possible to adiabatically follow the initially excited supermode of the system, which, due to the radii modification, will smoothly change its transversal amplitude profile along the propagation direction [49]. This adiabatic following, which corresponds to the so-called spatial adiabatic passage process [4][5][6][7][8][9][10]15,16], allows for the control of the sound propagation along linear defects in SCs. If the radii modification is not smoothly performed, sound waves will not be able to adiabatically follow the change of the transverse profile of the initially excited supermode along the propagation direction, exciting other supermodes of the system, and we would lose control of the sound propagation.…”

Section: Physical Systemmentioning

confidence: 99%

Spatial adiabatic passage processes in sonic crystals with linear defects

2014

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We investigate spatial adiabatic passage processes for sound wave propagation in sonic crystals, consisting of steel cylinders embedded in a water host medium, that present two linear defects. This work constitutes an extension of the well-known quantum optical rapid adiabatic passage technique to the field of sound propagation. Several spatial adiabatic passage devices are proposed by appropriately designing the geometry of the two linear defects along the propagation direction to work as a coherent multifrequency adiabatic splitter, a phase difference analyzer, and a coherent multifrequency adiabatic coupler. These devices are robust in front of fluctuations of the geometric parameter values.

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Adiabatic Passage of Light in CMOS-Compatible Silicon Oxide Integrated Rib Waveguides

Cited by 28 publications

References 11 publications

Robust and Broadband Optical Coupling by Topological Waveguide Arrays

Robust and Broadband Optical Coupling by Topological Waveguide Arrays

Spin-selective electron transfer in a quantum dot array

Spatial adiabatic passage processes in sonic crystals with linear defects

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