# EPFL Demonstrates Millimeter-Wave-to-Optical Transducer with 67% Internal Efficiency

Source: [Quantum Computing Report](https://quantumcomputingreport.com/epfl-demonstrates-millimeter-wave-to-optical-transducer-with-67-internal-efficiency/) · 2026-11-10 · Computing
Page: https://themorning.science/story/epfl-demonstrates-millimeter-wave-to-optical-transducer-with-67-internal-efficie-003c2649156e27fd
Kind: research · Impact: medium

## In brief

- EPFL researchers report a millimetre-wave-to-optical transducer with 67% internal efficiency.
- The device uses a thin-film lithium niobate photonic molecule coupled to a metallic resonator to bridge millimetre-wave and telecom optical domains.

## Why it matters

Converting millimetre-wave signals into telecom-band light is a key step toward linking superconducting quantum processors with optical quantum networks.

## Coverage

- [EPFL Demonstrates Millimeter-Wave-to-Optical Transducer with 67% Internal Efficiency](https://quantumcomputingreport.com/epfl-demonstrates-millimeter-wave-to-optical-transducer-with-67-internal-efficiency/) — Quantum Computing Report, 2026-11-10

Tags: transducer, millimeter-wave, optical, lithium-niobate, quantum-networking, photonics

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science