PreprintarXiv licencearXiv
Integrated balanced homodyne detector using CMOS capacitive-feedback TIA for quantum measurements
Abstract
A low-noise, high-speed balanced homodyne detector is demonstrated, combining a capacitive-feedback transimpedance amplifier implemented in 28 nm CMOS with a custom photonic integrated circuit fabricated in imec's iSiPP200 silicon photonics platform. The receiver achieves a 3-dB bandwidth of 7.6 GHz, a maximum shot noise clearance of 27 dB, a shot noise-limited bandwidth of 13.7 GHz and a common-mode rejection ratio up to 54.8 dB. These results demonstrate the suitability of CMOS capacitive-feedback transimpedance amplifiers for demanding quantum and coherent sensing optical applications, including continuous-variable quantum key distribution, quantum random number generation, and optical coherence tomography.
Related
- Realization of a Primary Irradiance Scale for Solar irradiance Measurements based on a Predictable Quantum Efficient Detector and a Quasi-Monochromatic Portable Tunable Source.
- Development of a Portable Multi-Detector for Indoor Air Quality Monitoring in Schools: Preliminary Results About Formaldehyde Measurements
- Optical Characterization Measurements of Commercial Polyvinyltoluene Scintillators for Accurate Geant4 Detector Modeling
- Measurements of the Higgs boson production, fiducial and differential cross-sections in the four lepton decay channel using 164 fb−1 of data collected at √s = 13.6 TeV with the ATLAS detector
- Measurements of isolated photon pair production in association with jets in pp collisions at √s = 8 TeV with the ATLAS detector
BibTeX
@misc{bastiaens2026integrated,
title = {{Integrated balanced homodyne detector using CMOS capacitive-feedback TIA for quantum measurements}},
author = {Sarah Bastiaens and Cedric Bruynsteen and Simone Cammarata and Axl Bomhals and Leandro da Silva and Michiel Van Osta and Johan Bauwelinck and Xin Yin},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.37671},
eprint = {2609.37671},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.37671},
}
RIS
TY - UNPB
TI - Integrated balanced homodyne detector using CMOS capacitive-feedback TIA for quantum measurements
AU - Sarah Bastiaens
AU - Cedric Bruynsteen
AU - Simone Cammarata
AU - Axl Bomhals
AU - Leandro da Silva
AU - Michiel Van Osta
AU - Johan Bauwelinck
AU - Xin Yin
PY - 2026
DA - 2026/09/29
PB - arXiv
DO - 10.48550/arxiv.2609.37671
UR - https://arxiv.org/abs/2609.37671
AB - A low-noise, high-speed balanced homodyne detector is demonstrated, combining a capacitive-feedback transimpedance amplifier implemented in 28 nm CMOS with a custom photonic integrated circuit fabricated in imec's iSiPP200 silicon photonics platform. The receiver achieves a 3-dB bandwidth of 7.6 GHz, a maximum shot noise clearance of 27 dB, a shot noise-limited bandwidth of 13.7 GHz and a common-mode rejection ratio up to 54.8 dB. These results demonstrate the suitability of CMOS capacitive-feedback transimpedance amplifiers for demanding quantum and coherent sensing optical applications, including continuous-variable quantum key distribution, quantum random number generation, and optical coherence tomography.
ER -