TY - GEN
T1 - Hybrid Integrated Photonic/Electronic Homodyne Detector for GHz Baud Rate Continuous Variable Quantum Key Distribution
AU - Boubriak, Andriy
AU - Kumar, Rupesh
AU - Frazer, Jonathan
AU - Matthews, Jonathan
AU - Allen, Euan
PY - 2023/9/4
Y1 - 2023/9/4
N2 - Implementing CVQKD using integrated photonics presents many advantages, such as small form factor, and the ability to mass manufacture at a high volume with a lost cost, by making use of mature electronics manufacturing technologies. Another significant advantage of using integrated photonics is for implementing CV-QKD receivers. By making use of integrated photodiodes with integrated amplification electronics it is possible to achieve high-performance wideband (GHz) homodyne detectors [1], using standard telecoms electronics at negligible cost ($10s). Increasing the detector bandwidths allows for faster baud rates, and therefore faster key rates [2]. In this work we implement a hybrid integrated photonic/electronic circuit design to demonstrate an integrated photonic CV-QKD receiver with a bandwidth of approximately 1.4GHz and our work towards making use of the design to implement a CV-QKD system with GHz baud rates. This represents an improvement in bandwidth of 2 orders of magnitude over previous chip-based CV-QKD experiments where the bandwidth of the detector was 10MHz. [2].
AB - Implementing CVQKD using integrated photonics presents many advantages, such as small form factor, and the ability to mass manufacture at a high volume with a lost cost, by making use of mature electronics manufacturing technologies. Another significant advantage of using integrated photonics is for implementing CV-QKD receivers. By making use of integrated photodiodes with integrated amplification electronics it is possible to achieve high-performance wideband (GHz) homodyne detectors [1], using standard telecoms electronics at negligible cost ($10s). Increasing the detector bandwidths allows for faster baud rates, and therefore faster key rates [2]. In this work we implement a hybrid integrated photonic/electronic circuit design to demonstrate an integrated photonic CV-QKD receiver with a bandwidth of approximately 1.4GHz and our work towards making use of the design to implement a CV-QKD system with GHz baud rates. This represents an improvement in bandwidth of 2 orders of magnitude over previous chip-based CV-QKD experiments where the bandwidth of the detector was 10MHz. [2].
UR - http://www.scopus.com/inward/record.url?scp=85175726647&partnerID=8YFLogxK
U2 - 10.1109/CLEO/EUROPE-EQEC57999.2023.10231737
DO - 10.1109/CLEO/EUROPE-EQEC57999.2023.10231737
M3 - Chapter in a published conference proceeding
AN - SCOPUS:85175726647
T3 - 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
BT - 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
PB - IEEE
T2 - 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
Y2 - 26 June 2023 through 30 June 2023
ER -