On-chip frequency-bin quantum photonics

Karthik V. Myilswamy, Lucas M. Cohen, Suparna Seshadri, Hsuan Hao Lu, Joseph M. Lukens

Research output: Contribution to journalArticlepeer-review

Abstract

Frequency-bin encoding furnishes a compelling pathway for quantum information processing systems compatible with established lightwave infrastructures based on fiber-optic transmission and wavelength-division multiplexing. Yet although significant progress has been realized in proof-of-principle tabletop demonstrations, ranging from arbitrary single-qubit gates to controllable multiphoton interference, challenges in scaling frequency-bin processors to larger systems remain. In this Perspective, we highlight recent advances at the intersection of frequency-bin encoding and integrated photonics that are fundamentally transforming the outlook for scalable frequency-based quantum information. Focusing specifically on results on sources, state manipulation, and hyperentanglement, we envision a possible future in which on-chip frequency-bin circuits fulfill critical roles in quantum information processing, particularly in communications and networking.

Original languageEnglish
JournalNanophotonics
DOIs
StateAccepted/In press - 2025

Keywords

  • electro-optic modulators
  • frequency bins
  • microring resonators
  • photonic entanglement
  • quantum communications and networking
  • quantum information processing

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