Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities
In this paper, a practical scheme to achieve reconfigurable optical frequency comb (OFC) and Nyquist pulses generation based on two cascaded Mach-Zehnder modulators and a polarization control structure is theoretically analyzed and verified by simulation. A rectangular-shaped OFC with evolvable comb...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9159111/ |
| _version_ | 1819172974727528448 |
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| author | Hongyao Chen Jianping Wang Huimin Lu Tigang Ning Li Pei Jing Li |
| author_facet | Hongyao Chen Jianping Wang Huimin Lu Tigang Ning Li Pei Jing Li |
| author_sort | Hongyao Chen |
| collection | DOAJ |
| description | In this paper, a practical scheme to achieve reconfigurable optical frequency comb (OFC) and Nyquist pulses generation based on two cascaded Mach-Zehnder modulators and a polarization control structure is theoretically analyzed and verified by simulation. A rectangular-shaped OFC with evolvable comb lines (4 to 8) was obtained. Since there is no filter built in the structure, the turntable comb spacing is also an inherent feature of the OFC. These properties make the OFC can be used to produce high quality Nyquist pulses with flexible pulse duration (25.6ps~14.4ps), duty cycle (11.5%~20.5%) and repetition rate (4GHz~40GHz). It is found that the sensitivity of the reconstruction process of the OFC and corresponding pulses is adjustable. By methods of mathematics, we expound the observed results and provide mathematical expressions about the relations between the optical sideband suppression ratio, modulation index, principle polarization direction and sensitivity. Moreover, a proof-of-concept experiment of the OFC generation is carried out and the results are consistent with the theoretical ones, which indicates the potential of our work to generate user-friendly reconfigurable OFC and Nyquist pulses demanded in microwave photonics, optical communications, all-optical sampling and light storage applications. |
| first_indexed | 2024-12-22T20:15:43Z |
| format | Article |
| id | doaj.art-e162f05bdc70447ea0ae0bb3ec53dee4 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T20:15:43Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-e162f05bdc70447ea0ae0bb3ec53dee42022-12-21T18:13:58ZengIEEEIEEE Access2169-35362020-01-01815721115721710.1109/ACCESS.2020.30144219159111Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable SensitivitiesHongyao Chen0https://orcid.org/0000-0002-8562-2225Jianping Wang1https://orcid.org/0000-0002-8729-9185Huimin Lu2https://orcid.org/0000-0001-5053-5036Tigang Ning3Li Pei4https://orcid.org/0000-0003-3381-9883Jing Li5https://orcid.org/0000-0001-9228-305XSchool of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing, ChinaSchool of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing, ChinaSchool of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network of EMC, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network of EMC, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network of EMC, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, ChinaIn this paper, a practical scheme to achieve reconfigurable optical frequency comb (OFC) and Nyquist pulses generation based on two cascaded Mach-Zehnder modulators and a polarization control structure is theoretically analyzed and verified by simulation. A rectangular-shaped OFC with evolvable comb lines (4 to 8) was obtained. Since there is no filter built in the structure, the turntable comb spacing is also an inherent feature of the OFC. These properties make the OFC can be used to produce high quality Nyquist pulses with flexible pulse duration (25.6ps~14.4ps), duty cycle (11.5%~20.5%) and repetition rate (4GHz~40GHz). It is found that the sensitivity of the reconstruction process of the OFC and corresponding pulses is adjustable. By methods of mathematics, we expound the observed results and provide mathematical expressions about the relations between the optical sideband suppression ratio, modulation index, principle polarization direction and sensitivity. Moreover, a proof-of-concept experiment of the OFC generation is carried out and the results are consistent with the theoretical ones, which indicates the potential of our work to generate user-friendly reconfigurable OFC and Nyquist pulses demanded in microwave photonics, optical communications, all-optical sampling and light storage applications.https://ieeexplore.ieee.org/document/9159111/Microwave photonicsoptical harmonic generationoptical pulses generation |
| spellingShingle | Hongyao Chen Jianping Wang Huimin Lu Tigang Ning Li Pei Jing Li Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities IEEE Access Microwave photonics optical harmonic generation optical pulses generation |
| title | Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities |
| title_full | Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities |
| title_fullStr | Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities |
| title_full_unstemmed | Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities |
| title_short | Reconfigurable Optical Frequency Comb and Nyquist Pulses Generation With Tunable Sensitivities |
| title_sort | reconfigurable optical frequency comb and nyquist pulses generation with tunable sensitivities |
| topic | Microwave photonics optical harmonic generation optical pulses generation |
| url | https://ieeexplore.ieee.org/document/9159111/ |
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