Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control
A wideband spurious-free dynamic range (SFDR) expander that uses optical distortion control technique is proposed in this study for microwave photonic links. A third-order intermodulation distortion (IMD3), which is sensed by extracting the modulated optical carrier, will be monitored and attenuated...
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8631147/ |
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| author | Tianwei Jiang Jianming Shang Song Yu Xinmeng Ye Wanyi Gu |
| author_facet | Tianwei Jiang Jianming Shang Song Yu Xinmeng Ye Wanyi Gu |
| author_sort | Tianwei Jiang |
| collection | DOAJ |
| description | A wideband spurious-free dynamic range (SFDR) expander that uses optical distortion control technique is proposed in this study for microwave photonic links. A third-order intermodulation distortion (IMD3), which is sensed by extracting the modulated optical carrier, will be monitored and attenuated adaptively by controlling the optical power injected into the photodetector. Therefore, the IMD3 can be suppressed below the noise floor (NF), and the SFDR can be expanded further. In addition, the sensing signal stems from the modulated optical carrier, which is independent of radio frequency. Thus, our system is essentially a broadband system whereby the dynamic range expander is applied to classical intensity modulation and direct detection microwave photonic link. Experimental results demonstrate that the SFDR is improved from 46.84 to 67.98 <inline-formula><tex-math notation="LaTeX">$\text{dB}/\text{Hz}^{2/3}$</tex-math></inline-formula> with a <inline-formula><tex-math notation="LaTeX">$-$</tex-math></inline-formula>70 dBm noise power. The SFDR can even reach 150 <inline-formula><tex-math notation="LaTeX">$\text{dB}/\text{Hz}^{2/3}$</tex-math></inline-formula> with a bandwidth of 36 GHz with a 1 Hz NF. |
| format | Article |
| id | doaj-art-9b06de536d064972b70108b1471d7070 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-9b06de536d064972b70108b1471d70702025-08-20T03:30:51ZengIEEEIEEE Photonics Journal1943-06552019-01-011111810.1109/JPHOT.2019.28945688631147Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion ControlTianwei Jiang0https://orcid.org/0000-0002-9005-4779Jianming Shang1https://orcid.org/0000-0002-3522-8035Song Yu2https://orcid.org/0000-0003-1489-9021Xinmeng Ye3Wanyi Gu4State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaA wideband spurious-free dynamic range (SFDR) expander that uses optical distortion control technique is proposed in this study for microwave photonic links. A third-order intermodulation distortion (IMD3), which is sensed by extracting the modulated optical carrier, will be monitored and attenuated adaptively by controlling the optical power injected into the photodetector. Therefore, the IMD3 can be suppressed below the noise floor (NF), and the SFDR can be expanded further. In addition, the sensing signal stems from the modulated optical carrier, which is independent of radio frequency. Thus, our system is essentially a broadband system whereby the dynamic range expander is applied to classical intensity modulation and direct detection microwave photonic link. Experimental results demonstrate that the SFDR is improved from 46.84 to 67.98 <inline-formula><tex-math notation="LaTeX">$\text{dB}/\text{Hz}^{2/3}$</tex-math></inline-formula> with a <inline-formula><tex-math notation="LaTeX">$-$</tex-math></inline-formula>70 dBm noise power. The SFDR can even reach 150 <inline-formula><tex-math notation="LaTeX">$\text{dB}/\text{Hz}^{2/3}$</tex-math></inline-formula> with a bandwidth of 36 GHz with a 1 Hz NF.https://ieeexplore.ieee.org/document/8631147/Microwave photonicsmicrowave photonics signal processingdynamic range |
| spellingShingle | Tianwei Jiang Jianming Shang Song Yu Xinmeng Ye Wanyi Gu Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control IEEE Photonics Journal Microwave photonics microwave photonics signal processing dynamic range |
| title | Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control |
| title_full | Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control |
| title_fullStr | Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control |
| title_full_unstemmed | Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control |
| title_short | Broadband Spurious-Free Dynamic Range Expander for Microwave Photonic Links Based on Optical Distortion Control |
| title_sort | broadband spurious free dynamic range expander for microwave photonic links based on optical distortion control |
| topic | Microwave photonics microwave photonics signal processing dynamic range |
| url | https://ieeexplore.ieee.org/document/8631147/ |
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