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Data for manuscript "Integrated optical isolators for broadband multi-laser operation"

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: September 02, 2026 at 07:19 PM | Dataset Last Updated: March 20, 2026
Theoretical calculation, modeling and experimental measurement data for the paper "Integrated optical isolators for broadband multi-laser operation" accepted for publication in Nature Photonics (2026) Abstract: Photonic integrated circuits commonly feature visible or near-infrared lasers which are vulnerable to destabilizing back-reflections and must be protected by isolators — non-reciprocal optical components enforcing one-way light propagation. Despite recent progress, high performance isolators remain bulky off-chip components, while on-chip implementations suffer from challenging fabrication, high optical absorption, or narrow optical bandwidth. Here, we propose and experimentally demonstrate a magnet-free, intrinsically broadband traveling-wave isolator built from foundry-compatible components. Using radio-frequency electro-optic modulation to create synthetic motion across four parallel waveguides, we realize dynamic rotating destructive interference that continuously cancels backward-propagating light while leaving forward-propagating light unaffected. We reach ≈30 dB peak isolation, maintain >24 dB isolation across a 30 nm wavelength span with thermo-optic adjustment and show >20 dB isolation for two lasers simultaneously within 10 nm without any adjustment. The demonstration’s 770 nm to 800 nm wavelength span covers key alkali atomic transitions, enabling on-chip laser isolation for atomic spectroscopy, laser cooling, and locking applications. Our isolator approach, applicable from the visible to telecom wavelength spectrum, offers a compelling practical solution, opening the way for fully integrated atomic clocks, quantum sensors, advanced telecommunications and tunable laser systems on a single chip.

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Complete Metadata
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description Theoretical calculation, modeling and experimental measurement data for the paper "Integrated optical isolators for broadband multi-laser operation" accepted for publication in Nature Photonics (2026) Abstract: Photonic integrated circuits commonly feature visible or near-infrared lasers which are vulnerable to destabilizing back-reflections and must be protected by isolators — non-reciprocal optical components enforcing one-way light propagation. Despite recent progress, high performance isolators remain bulky off-chip components, while on-chip implementations suffer from challenging fabrication, high optical absorption, or narrow optical bandwidth. Here, we propose and experimentally demonstrate a magnet-free, intrinsically broadband traveling-wave isolator built from foundry-compatible components. Using radio-frequency electro-optic modulation to create synthetic motion across four parallel waveguides, we realize dynamic rotating destructive interference that continuously cancels backward-propagating light while leaving forward-propagating light unaffected. We reach ≈30 dB peak isolation, maintain >24 dB isolation across a 30 nm wavelength span with thermo-optic adjustment and show >20 dB isolation for two lasers simultaneously within 10 nm without any adjustment. The demonstration’s 770 nm to 800 nm wavelength span covers key alkali atomic transitions, enabling on-chip laser isolation for atomic spectroscopy, laser cooling, and locking applications. Our isolator approach, applicable from the visible to telecom wavelength spectrum, offers a compelling practical solution, opening the way for fully integrated atomic clocks, quantum sensors, advanced telecommunications and tunable laser systems on a single chip.
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identifier ark:/88434/mds2-4202
issued 2026-06-30
keyword 
[
  "electro-optic modulator",
  "integrated optical isolator",
  "integrated photonics",
  "photonic integrated circuit",
  "radio frequency photonics",
  "traveling wave isolator"
]
landingPage https://data.nist.gov/od/id/mds2-4202
language 
[
  "en"
]
license https://www.nist.gov/open/license
modified 2026-03-20 00:00:00
programCode 
[
  "006:045"
]
publisher 
{
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
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references 
[
  "https://doi.org/10.48550/arXiv.2509.02866"
]
theme 
[
  "Electronics:Optoelectronics",
  "Nanotechnology:Nanofabrication/manufacturing",
  "Nanotechnology:Nanophotonics",
  "Physics:Atomic, molecular, and quantum",
  "Physics:Optical physics"
]
title Data for manuscript "Integrated optical isolators for broadband multi-laser operation"

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