Microwave-Optical Transduction Using High-Overtone Bulk Acoustic Resonators on Silicon Nitride Photonics
We present compact microwave-optical transducers between the microwave S-band and optical C-band based on monolithic integration of piezoelectric actuators atop silicon nitride photonic circuits. The silica cladding of the optical waveguide core is suspended below the actuators, forming a bulk acoustic resonator that mediates interaction between microwave and optical fields through piezoelectric and stress-optical effects. An off-chip photon conversion efficiency of −48 dB is measured over a bandwidth of 25 MHz for both up- and down-conversion. Microwave pulses are synthesized on-chip through down-conversion and multiplexed transduction is demonstrated, indicating its potential as a photonic interconnect between cryogenic circuits.
2-s2.0-85197672842
2024
9781557525185
Springer Proceedings in Physics; 402
1867-4941
0930-8989
204
206
REVIEWED
EPFL
Event name | Event acronym | Event place | Event date |
Aachen, Germany | 2024-06-17 - 2024-06-19 | ||
Funder | Funding(s) | Grant Number | Grant URL |
European Space Technology Centre | |||
Center of MicroNanoTechnology | |||
European Research Council | |||
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