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Reconfigurable Photonic Circuit for Controlled Power Delivery to Laser-Driven Accelerators on a Chip

Tyler W. Hughes1,*, R. Joel England2, and Shanhui Fan3

  • 1Department of Applied Physics, Stanford University, Stanford, California 94305, USA
  • 2SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
  • 3Ginzton Laboratory, Stanford University, Stanford, California 94305, USA

  • *twhughes@stanford.edu
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Phys. Rev. Applied 11, 064014 – Published 7 June, 2019

DOI: https://doi.org/10.1103/PhysRevApplied.11.064014

Abstract

Dielectric laser acceleration (DLA) represents a promising approach to building miniature particle accelerators on a chip. However, similar to conventional rf accelerators, an automatic and reconfigurable control mechanism is needed to scale DLA technology towards high-energy gains and practical applications. We propose a system providing control of the laser coupling to DLA using integrated optics and introduce a component for power distribution using a reconfigurable mesh of Mach-Zehnder interferometers. Using numerical simulations, we show how such a mesh may be sequentially and efficiently tuned to optimize power distribution in the circuit and find that this strategy has favorable scaling properties with respect to size of the mesh.

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Physics Subject Headings (PhySH)

Corrections

19 August, 2019

Correction: Equation (1) contained a minor error and has been fixed.

Article Text

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Outline

Information

Phys. Rev. Applied 11, 064014– Published 7 June, 2019
  • Received 25 February 2019
  • Revised 29 April 2019
  • Corrected 19 August 2019
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