Receiver (Rx) for CV-QKD Using Waveguide Integrated Balanced Ge PDs

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The scope of this paper is to develop integrated Receiver (Rx) components for continuous variables quantum key distribution (CV-QKD) technology. Fast balanced Ge PDs are monolithically integrated with 90° optical hybrid on VTT's ultra-low loss 3um thick SOI platform. We developed integrated balanced Ge PDs based on an operational amplifier connected in a transimpedance amplifier (TIA). These balanced Ge detectors exhibit low noise and high saturation power, with an estimated shot noise to electronic noise clearance >15 dB, and a bandwidth of 1 GHz with CMRR greater >30 dB.

Original languageEnglish
Title of host publication2024 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
PublisherOptica Publishing Group
ISBN (Electronic)979-8-3503-7207-6
Publication statusPublished - 2024
MoE publication typeA4 Article in a conference publication
Event2024 Conference on Lasers and Electro-Optics/Pacific Rim, CLEO-PR 2024 - Incheon, Korea, Republic of
Duration: 4 Aug 20248 Aug 2024

Publication series

SeriesTechnical Digest Series

Conference

Conference2024 Conference on Lasers and Electro-Optics/Pacific Rim, CLEO-PR 2024
Country/TerritoryKorea, Republic of
CityIncheon
Period4/08/248/08/24

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