Digital optical switch

Silberberg, Yaron; Perlmutter, Patrick; Baran, J. E.

doi:10.1063/1.98739

Cited by 215 publications

(20 citation statements)

References 10 publications

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“…The concept of adiabatic transfer of energy between coupled modes dates back to the work of Landau and Zener 13 on molecular energy level crossings, ideas which were then applied to microwave [14][15][16] and optical [17][18][19][20][21] systems. A similar idea has recently been used to transfer light to a nanoscale cavity.…”

mentioning

confidence: 99%

Highly efficient coupling from an optical fiber to a nanoscale silicon optomechanical cavity

Gröblacher

Hill

Safavi-Naeini

et al. 2013

Applied Physics Letters

101

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We demonstrate highly efficient coupling of light from an optical fiber to a silicon photonic crystal optomechanical cavity. The fiber-to-cavity coupling utilizes a compact (L ≈ 25 µm) intermediate adiabatic coupler. The optical coupling is lithographically controlled, broadband, relatively insensitive to fiber misalignment, and allows for light to be transferred from an optical fiber to, in principle, any photonic chip with refractive index greater than that of the optical fiber. Here we demonstrate single-sided cavity coupling with a total fiber-to-cavity optical power coupling efficiency of 85%.

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Highly efficient coupling from an optical fiber to a nanoscale silicon optomechanical cavity

Gröblacher

Hill

Safavi-Naeini

et al. 2013

Applied Physics Letters

101

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“…The obtainable switching is almost complete (digital), while the state of the equal outputs for the purely symmetric excitation is unstable [52] . When light is injected into one of the separate guides, a positive Kerr Figure 7 .…”

Section: 5 the Nonlinear Y And X Junctionsmentioning

confidence: 99%

“…The input guide is effectively light biased and decoupled from the neighbouring one . The X junction is the all-optical version of the digital electro-optic switch initially studied and demonstrated using lithium niobate [52] . The all-optical version, in its symmetric configuration, has been recently analysed using BPM [53], In this case (figure 6) all four waveguides merging at the centre are nonlinear .…”

Section: 5 the Nonlinear Y And X Junctionsmentioning

confidence: 99%

All-optical Integrated Nonlinear Devices

Assanto

1990

Journal of Modern Optics

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“…Tunable integrated power-splitting devices have been deeply investigated since the early stages of integrated optics, including thermally or electro-optically actuated directional couplers (DCs) [6], asymmetric waveguide junctions [7] and multimode interference (MMI) couplers [8]. In silicon photonics the most common approach to realize a tunable coupler exploits a thermally actuated balanced Mach-Zehnder interferometer (MZI) [3,5].…”

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confidence: 99%

Tunable silicon photonics directional coupler driven by a transverse temperature gradient

et al. 2013

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This version is available at https://strathprints.strath.ac.uk/44391/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. A compact directional coupler fabricated on a silicon photonic platform is presented, with a power-splitting ratio that can be tuned through a transverse temperature gradient induced by a laterally shifted integrated heater. The tuning mechanism exploits the thermally induced phase velocity mismatch between the coupled modes of the silicon waveguides. The positions of the integrated heater and the waveguide design are optimized to maximize the tuning range and to reduce electric power consumption. Asynchronous devices with an intrinsic phase mismatch are demonstrated to be more efficient, providing a tunable coupled power from 0.7 to 0.01 with 36 mW maximum power dissipation.

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Digital optical switch

Cited by 215 publications

References 10 publications

Highly efficient coupling from an optical fiber to a nanoscale silicon optomechanical cavity

Highly efficient coupling from an optical fiber to a nanoscale silicon optomechanical cavity

All-optical Integrated Nonlinear Devices

Tunable silicon photonics directional coupler driven by a transverse temperature gradient

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