Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator
A novel approach to simultaneous radiofrequency self-interference cancellation (SIC) and frequency down-conversion in a unified system is proposed and demonstrated experimentally based on cascade Mach–Zehnder modulators (MZM). The local oscillator signal is injected into the MZM1, whereas...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9246951/ |
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| author | Jiaojiao Wang Yuehui Wang Zhike Zhang Zeping Zhao Jianguo Liu |
| author_facet | Jiaojiao Wang Yuehui Wang Zhike Zhang Zeping Zhao Jianguo Liu |
| author_sort | Jiaojiao Wang |
| collection | DOAJ |
| description | A novel approach to simultaneous radiofrequency self-interference cancellation (SIC) and frequency down-conversion in a unified system is proposed and demonstrated experimentally based on cascade Mach–Zehnder modulators (MZM). The local oscillator signal is injected into the MZM1, whereas the received RF signal and the reference signal are fed into MZM2 and MZM3. After photoelectrical conversion by a balanced photodetector, the desired intermediate frequency signal with SIC is obtained. The cancellation depth for the single frequency SIC with frequency down-conversion is around 38 dB, and that for a wideband signal is around 19 dB. No electrical delay and attenuation are used in the proposed system, so it can potentially reach a wider frequency band and a higher cancellation depth. |
| format | Article |
| id | doaj-art-a2f40eefbf0b4d099413f752a5a1e44b |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a2f40eefbf0b4d099413f752a5a1e44b2025-07-01T23:56:20ZengIEEEIEEE Photonics Journal1943-06552020-01-011261810.1109/JPHOT.2020.30329859246951Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade ModulatorJiaojiao Wang0https://orcid.org/0000-0002-8752-7686Yuehui Wang1https://orcid.org/0000-0001-5813-8801Zhike Zhang2https://orcid.org/0000-0002-8726-3174Zeping Zhao3https://orcid.org/0000-0002-8097-4686Jianguo Liu4https://orcid.org/0000-0003-4737-4715State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaA novel approach to simultaneous radiofrequency self-interference cancellation (SIC) and frequency down-conversion in a unified system is proposed and demonstrated experimentally based on cascade Mach–Zehnder modulators (MZM). The local oscillator signal is injected into the MZM1, whereas the received RF signal and the reference signal are fed into MZM2 and MZM3. After photoelectrical conversion by a balanced photodetector, the desired intermediate frequency signal with SIC is obtained. The cancellation depth for the single frequency SIC with frequency down-conversion is around 38 dB, and that for a wideband signal is around 19 dB. No electrical delay and attenuation are used in the proposed system, so it can potentially reach a wider frequency band and a higher cancellation depth.https://ieeexplore.ieee.org/document/9246951/Microwave photonicsradio-frequency (RF) self-interferencemodulator |
| spellingShingle | Jiaojiao Wang Yuehui Wang Zhike Zhang Zeping Zhao Jianguo Liu Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator IEEE Photonics Journal Microwave photonics radio-frequency (RF) self-interference modulator |
| title | Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator |
| title_full | Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator |
| title_fullStr | Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator |
| title_full_unstemmed | Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator |
| title_short | Optical Self-Interference Cancellation With Frequency Down-Conversion Based on Cascade Modulator |
| title_sort | optical self interference cancellation with frequency down conversion based on cascade modulator |
| topic | Microwave photonics radio-frequency (RF) self-interference modulator |
| url | https://ieeexplore.ieee.org/document/9246951/ |
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