Research on large-bandwidth balanced homodyne detector for quantum detection

Guifu Su; Han Zhou; Xiangyu Wang; Tianwei Jiang; Song Yu

doi:10.1117/12.3030606

3 June 2024 Research on large-bandwidth balanced homodyne detector for quantum detection

Guifu Su, Han Zhou, Xiangyu Wang, Tianwei Jiang, Song Yu

Proceedings Volume 13182, 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024); 131821C (2024) https://doi.org/10.1117/12.3030606
Event: 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024), 2024, Kunming, China

Abstract

We study a relatively excellent BHD(Balanced Homodyne Detector)with large bandwidth and low noise pre-amplification, which is different from the specific BHD implementation scheme and can better adapt to the subsequent cascade scheme, thereby achieving the implementation of BHD with specific needs. Specifically, we optimize our BHD performance by compromising various parameters of BHD, focusing on optimizing and increasing BHD bandwidth, and choosing a more reasonable BHD implementation solution. Judging from the test results, the produced BHD has good performance in extracting effective signals. The bandwidth reaches about 2GHz, which meets the requirements of detection applications. It has a high signal-to-noise ratio of 10 dB and a common-mode rejection ratio (CMRR) of 20 dB near the 2 GHz frequency point.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Guifu Su, Han Zhou, Xiangyu Wang, Tianwei Jiang, and Song Yu "Research on large-bandwidth balanced homodyne detector for quantum detection", Proc. SPIE 13182, 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024), 131821C (3 June 2024); https://doi.org/10.1117/12.3030606

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