Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer
We characterize the frequency response of channel-interleaved photonic analog-to-digital converters (CI-PADCs) theoretically and experimentally. The CI-PADC is composed of a photonic frontend for photonic sampling and an electronic backend for quantization. The photonic frontend includes a photonic...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9543558/ |
| _version_ | 1818882491572813824 |
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| author | Na Qian Linbo Zhang Jianping Chen Weiwen Zou |
| author_facet | Na Qian Linbo Zhang Jianping Chen Weiwen Zou |
| author_sort | Na Qian |
| collection | DOAJ |
| description | We characterize the frequency response of channel-interleaved photonic analog-to-digital converters (CI-PADCs) theoretically and experimentally. The CI-PADC is composed of a photonic frontend for photonic sampling and an electronic backend for quantization. The photonic frontend includes a photonic sampling pulse generator for directly high-speed sampling and an optical time-division demultiplexer (OTDM) for channel demultiplexing. It is found that the frequency response of the CI-PADC is influenced by both the photonic sampling pulses and the OTDM, of which the combined impact can be characterized through demultiplexed pulse trains. First, the frequency response can be divided into multiple frequency intervals and the range of the frequency interval equals the repetition rate of demultiplexed pulse trains. Second, the analog bandwidth of the CI-PADC is determined by the optical spectral bandwidth of demultiplexed pulse trains which is broadened in the OTDM. Further, the effect of the OTDM is essential for enlarging the analog bandwidth of the CI-PADC employing the photonic sampling pulses with limited optical spectral bandwidth. |
| first_indexed | 2024-12-19T15:18:36Z |
| format | Article |
| id | doaj.art-560be446fd6342e290381fa3c5e8d10b |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-19T15:18:36Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-560be446fd6342e290381fa3c5e8d10b2022-12-21T20:16:05ZengIEEEIEEE Photonics Journal1943-06552021-01-011351910.1109/JPHOT.2021.31140289543558Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division DemultiplexerNa Qian0https://orcid.org/0000-0001-7177-2030Linbo Zhang1Jianping Chen2https://orcid.org/0000-0002-1186-7633Weiwen Zou3https://orcid.org/0000-0002-4089-9394Department of Electronic Engineering, State Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaWe characterize the frequency response of channel-interleaved photonic analog-to-digital converters (CI-PADCs) theoretically and experimentally. The CI-PADC is composed of a photonic frontend for photonic sampling and an electronic backend for quantization. The photonic frontend includes a photonic sampling pulse generator for directly high-speed sampling and an optical time-division demultiplexer (OTDM) for channel demultiplexing. It is found that the frequency response of the CI-PADC is influenced by both the photonic sampling pulses and the OTDM, of which the combined impact can be characterized through demultiplexed pulse trains. First, the frequency response can be divided into multiple frequency intervals and the range of the frequency interval equals the repetition rate of demultiplexed pulse trains. Second, the analog bandwidth of the CI-PADC is determined by the optical spectral bandwidth of demultiplexed pulse trains which is broadened in the OTDM. Further, the effect of the OTDM is essential for enlarging the analog bandwidth of the CI-PADC employing the photonic sampling pulses with limited optical spectral bandwidth.https://ieeexplore.ieee.org/document/9543558/Microwave photonics signal processingphotonic ADC |
| spellingShingle | Na Qian Linbo Zhang Jianping Chen Weiwen Zou Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer IEEE Photonics Journal Microwave photonics signal processing photonic ADC |
| title | Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer |
| title_full | Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer |
| title_fullStr | Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer |
| title_full_unstemmed | Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer |
| title_short | Characterization of the Frequency Response of Channel-Interleaved Photonic ADCs Based on the Optical Time-Division Demultiplexer |
| title_sort | characterization of the frequency response of channel interleaved photonic adcs based on the optical time division demultiplexer |
| topic | Microwave photonics signal processing photonic ADC |
| url | https://ieeexplore.ieee.org/document/9543558/ |
| work_keys_str_mv | AT naqian characterizationofthefrequencyresponseofchannelinterleavedphotonicadcsbasedontheopticaltimedivisiondemultiplexer AT linbozhang characterizationofthefrequencyresponseofchannelinterleavedphotonicadcsbasedontheopticaltimedivisiondemultiplexer AT jianpingchen characterizationofthefrequencyresponseofchannelinterleavedphotonicadcsbasedontheopticaltimedivisiondemultiplexer AT weiwenzou characterizationofthefrequencyresponseofchannelinterleavedphotonicadcsbasedontheopticaltimedivisiondemultiplexer |