A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement
Squeezing-based quantum metrology has been extensively applied in the field of precision measurement. Performance characteristics of squeezed light are obtained by a balanced homodyne detector. Here, we report a large dynamic range balanced homodyne detector with low-noise and high-signal-to-noise-r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S221137972400038X |
| _version_ | 1797306937637863424 |
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| author | Jinrong Wang Shuange Wu Liying Hou Chengdong Mi Xurong Shi Xuzhen Gao |
| author_facet | Jinrong Wang Shuange Wu Liying Hou Chengdong Mi Xurong Shi Xuzhen Gao |
| author_sort | Jinrong Wang |
| collection | DOAJ |
| description | Squeezing-based quantum metrology has been extensively applied in the field of precision measurement. Performance characteristics of squeezed light are obtained by a balanced homodyne detector. Here, we report a large dynamic range balanced homodyne detector with low-noise and high-signal-to-noise-ratio (SNR) for broadband squeezed light measurement. We perform a comprehensive theoretical analysis of the SNR in a wide bandwidth and experimentally analyze the important printed circuit board (PCB) layout and electronic components. Consequently, in the 100 MHz frequency band, the SNR and common mode rejection ratio (CMRR) rise over 12.6 dB and 55 dB, respectively, and the electronic noise is suppressed below −90 dB. The directly observed squeezing level at 1550 nm with the specified detector is 11.8 dB at 2 MHz and 3.1 dB at 100 MHz. |
| first_indexed | 2024-03-08T00:50:03Z |
| format | Article |
| id | doaj.art-7937c1ed512d4cf3a4eb5f6717470cf8 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-08T00:50:03Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-7937c1ed512d4cf3a4eb5f6717470cf82024-02-15T05:23:44ZengElsevierResults in Physics2211-37972024-02-0157107356A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurementJinrong Wang0Shuange Wu1Liying Hou2Chengdong Mi3Xurong Shi4Xuzhen Gao5Department of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, China; Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou, Guangdong 510640, China; Corresponding author at: Department of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, China.Department of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, ChinaDepartment of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, ChinaDepartment of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, ChinaDepartment of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, ChinaDepartment of Physics and Electronic Information Engineering, Lyuliang University, Lishi, Shanxi 033001, ChinaSqueezing-based quantum metrology has been extensively applied in the field of precision measurement. Performance characteristics of squeezed light are obtained by a balanced homodyne detector. Here, we report a large dynamic range balanced homodyne detector with low-noise and high-signal-to-noise-ratio (SNR) for broadband squeezed light measurement. We perform a comprehensive theoretical analysis of the SNR in a wide bandwidth and experimentally analyze the important printed circuit board (PCB) layout and electronic components. Consequently, in the 100 MHz frequency band, the SNR and common mode rejection ratio (CMRR) rise over 12.6 dB and 55 dB, respectively, and the electronic noise is suppressed below −90 dB. The directly observed squeezing level at 1550 nm with the specified detector is 11.8 dB at 2 MHz and 3.1 dB at 100 MHz.http://www.sciencedirect.com/science/article/pii/S221137972400038XQuantum opticsSqueezed lightBalanced homodyne detectorSNRCMRR |
| spellingShingle | Jinrong Wang Shuange Wu Liying Hou Chengdong Mi Xurong Shi Xuzhen Gao A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement Results in Physics Quantum optics Squeezed light Balanced homodyne detector SNR CMRR |
| title | A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement |
| title_full | A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement |
| title_fullStr | A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement |
| title_full_unstemmed | A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement |
| title_short | A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement |
| title_sort | low noise high snr and large dynamic range balanced homodyne detector for broadband squeezed light measurement |
| topic | Quantum optics Squeezed light Balanced homodyne detector SNR CMRR |
| url | http://www.sciencedirect.com/science/article/pii/S221137972400038X |
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