High-extinction ratio integrated photonic filters for silicon quantum photonics

Mateusz Piekarek*, Damien Bonneau, Shigehito Miki, Taro Yamashita, Mikio Fujiwara, Masahide Sasaki, Hirotaka Terai, Michael G. Tanner, Chandra M. Natarajan, Robert H. Hadfield, Jeremy L. O'Brien, Mark G. Thompson

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

50 Citations (Scopus)
295 Downloads (Pure)


We present the generation of quantum-correlated photon pairs and subsequent pump rejection across two silicon-on-insulator photonic integrated circuits. Incoherently cascaded lattice filters are used to provide over 100 dB pass-band to stop-band contrast with no additional external filtering. Photon pairs generated in a microring resonator are successfully separated from the input pump, confirmed by temporal correlations measurements.

Original languageEnglish
Pages (from-to)815-818
Number of pages4
JournalOptics Letters
Issue number4
Early online date13 Feb 2017
Publication statusPublished - 15 Feb 2017

Structured keywords

  • Bristol Quantum Information Institute


  • Photonics and Opto-Electronics
  • Quantum information and processing
  • Wavelength filtering devices

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