Emission enhancement of erbium in a hybrid waveguide platform

N. A. Güsken, M. Fu, M. Zapf, M. P. Nielsen, A. S. Clark, S. A. Maier, C. Ronning, M. L. Brongersma, R. F. Oulton

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review


We report the broadband luminescence enhancement of erbium ions embedded in a non-resonant hybrid waveguide photon-emitter interface on silicon. The measured emission rate enhancement of > 300 is enabled by a large radiative Purcell factor across the spectrum in the telecommunications C-band. This enables the shortening of the lifetime of erbium from 3 ms to 8 μs, effectively providing brighter on-chip photon sources. The platform efficiently collects the photon emission of erbium in a single-mode waveguide and out-couples it to a low-loss photonic waveguide using a reverse nano-focusing method. This hybrid approach opens a large range of possible emitter-waveguide platform combinations for heterogeneous and hybrid quantum emitter integration, towards scalable on-chip quantum networks.

Original languageEnglish
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XXVIII
EditorsSonia M. Garcia-Blanco, Pavel Cheben
Place of PublicationBellingham, Washington, USA
Number of pages4
ISBN (Electronic)9781510670396
ISBN (Print)9781510670389
Publication statusPublished - 12 Mar 2024
EventConference on Integrated Optics - Devices, Materials, and Technologies XXVIII 2024 - San Francisco, United States of America
Duration: 29 Jan 20241 Feb 2024
Conference number: 28th

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceConference on Integrated Optics - Devices, Materials, and Technologies XXVIII 2024
Country/TerritoryUnited States of America
CitySan Francisco
Internet address


  • Erbium
  • hybrid waveguide
  • integrated photonics
  • LDOS engineering
  • Purcell enhancement
  • quantum emitters

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