Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs
Optical frequency combs (OFCs) with programmable free spectral range and high optical carrier-to-noise ratio (CNR) play a crucial role in diverse research fields, including telecommunications, spectroscopy, quantum information, astronomy, sensing, and imaging. Unfortunately, the presence of stochast...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-03-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0190398 |
| _version_ | 1827297348587356160 |
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| author | Zijian Li Qijie Xie Yuanfei Zhang Honghui Zhang Chaoran Huang Chester Shu |
| author_facet | Zijian Li Qijie Xie Yuanfei Zhang Honghui Zhang Chaoran Huang Chester Shu |
| author_sort | Zijian Li |
| collection | DOAJ |
| description | Optical frequency combs (OFCs) with programmable free spectral range and high optical carrier-to-noise ratio (CNR) play a crucial role in diverse research fields, including telecommunications, spectroscopy, quantum information, astronomy, sensing, and imaging. Unfortunately, the presence of stochastic noise often results in degraded optical CNR, leading to limited communication performance and measurement accuracy in comb-based systems. There is a lack of effective and flexible methods to improve the CNR of OFCs contaminated by broadband noise, hampering their widespread utilization. To address this challenge, we propose a four-wave mixing based spectral Talbot amplifier to purify OFCs flexibly. Our approach employs programmable spectral phase filters followed by a nonlinear Kerr medium to regenerate an OFC with superior CNR. In our experimental demonstration, we regenerated a 165-GHz spaced CNR enhanced OFC from a noise-dominated comb source spaced at 11 GHz, achieving up to ∼11-dB CNR improvement. The technique allows for a user-defined purification factor m to range from 7 to 15. Furthermore, our scheme demonstrates flexibility in adjusting the wavelengths of the regenerated comb lines via a tunable optical delay line without the need for a tunable seed laser. We also investigated the impact of the pump and signal on the regenerated comb experimentally and studied the influence of dispersion mismatch on the suppression of undesired sidebands numerically. Our proposed scheme presents a powerful alternative for programmable purification, manipulation, and detection of noise-dominated spectral waveforms. |
| first_indexed | 2024-04-24T14:55:02Z |
| format | Article |
| id | doaj.art-e1006746f31a489eb384d0960f83b9aa |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-04-24T14:55:02Z |
| publishDate | 2024-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-e1006746f31a489eb384d0960f83b9aa2024-04-02T19:30:50ZengAIP Publishing LLCAPL Photonics2378-09672024-03-0193036101036101-1210.1063/5.0190398Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combsZijian Li0Qijie Xie1Yuanfei Zhang2Honghui Zhang3Chaoran Huang4Chester Shu5Center for Advanced Research in Photonics, Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, ChinaPeng Cheng Laboratory, No. 2, Xingke 1st. Street, Nanshan, Shenzhen, ChinaCenter for Advanced Research in Photonics, Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, ChinaCenter for Advanced Research in Photonics, Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, ChinaCenter for Advanced Research in Photonics, Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, ChinaCenter for Advanced Research in Photonics, Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, ChinaOptical frequency combs (OFCs) with programmable free spectral range and high optical carrier-to-noise ratio (CNR) play a crucial role in diverse research fields, including telecommunications, spectroscopy, quantum information, astronomy, sensing, and imaging. Unfortunately, the presence of stochastic noise often results in degraded optical CNR, leading to limited communication performance and measurement accuracy in comb-based systems. There is a lack of effective and flexible methods to improve the CNR of OFCs contaminated by broadband noise, hampering their widespread utilization. To address this challenge, we propose a four-wave mixing based spectral Talbot amplifier to purify OFCs flexibly. Our approach employs programmable spectral phase filters followed by a nonlinear Kerr medium to regenerate an OFC with superior CNR. In our experimental demonstration, we regenerated a 165-GHz spaced CNR enhanced OFC from a noise-dominated comb source spaced at 11 GHz, achieving up to ∼11-dB CNR improvement. The technique allows for a user-defined purification factor m to range from 7 to 15. Furthermore, our scheme demonstrates flexibility in adjusting the wavelengths of the regenerated comb lines via a tunable optical delay line without the need for a tunable seed laser. We also investigated the impact of the pump and signal on the regenerated comb experimentally and studied the influence of dispersion mismatch on the suppression of undesired sidebands numerically. Our proposed scheme presents a powerful alternative for programmable purification, manipulation, and detection of noise-dominated spectral waveforms.http://dx.doi.org/10.1063/5.0190398 |
| spellingShingle | Zijian Li Qijie Xie Yuanfei Zhang Honghui Zhang Chaoran Huang Chester Shu Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs APL Photonics |
| title | Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs |
| title_full | Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs |
| title_fullStr | Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs |
| title_full_unstemmed | Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs |
| title_short | Four-wave mixing based spectral Talbot amplifier for programmable purification of optical frequency combs |
| title_sort | four wave mixing based spectral talbot amplifier for programmable purification of optical frequency combs |
| url | http://dx.doi.org/10.1063/5.0190398 |
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