Ultra-Low Noise Balanced Receiver with >20 dB Quantum-to-Classical Noise Clearance at 1 GHz

2021/10/28 by Dinka Milovančev, Milovančev, Dinka, Florian Honz +9
Engineering · Physics and Astronomy · #FOS: Physical sciences #Optical Network Technologies #Photonic and Optical Devices #Quantum Physics (quant-ph) #Semiconductor Lasers and Optical Devices #quant-ph

paper · pdf · doi:10.48550/arxiv.2110.15228

4 pages, 3 Figures, ECOC 2021 - European Conference on Optical Communication, paper ID Th2D.4

arxiv created 2021/10/28 · openalex publication_date 2021/10/28 · arxiv updated 2021/10/29 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

We demonstrate a die-level balanced homodyne receiver for coherent optical access and continuous-variable quantum applications, featuring a 40dB CMRR up to 1GHz and a high quantum-to-classical noise ratio of 26.8dB at 12.3mW of LO power. 500Mb/s QPSK transmission was accomplished with a sensitivity of -55.8dBm.

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