Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification
Laser–plasma interactions (LPIs) hinder the interaction of high-energy laser pulses with targets. The use of broadband low-coherence light has been proposed to reduce the impact of LPIs. In this study, to improve the time–frequency characteristics of broadband low-coherence optical seeds, we propose...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/6/673 |
| _version_ | 1797592968320778240 |
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| author | Yue Wang Xiaochao Wang Meizhi Sun Xiao Liang Hui Wei Wei Fan |
| author_facet | Yue Wang Xiaochao Wang Meizhi Sun Xiao Liang Hui Wei Wei Fan |
| author_sort | Yue Wang |
| collection | DOAJ |
| description | Laser–plasma interactions (LPIs) hinder the interaction of high-energy laser pulses with targets. The use of broadband low-coherence light has been proposed to reduce the impact of LPIs. In this study, to improve the time–frequency characteristics of broadband low-coherence optical seeds, we proposed an arbitrary time-shaping technique scheme based on optical parametric amplification (OPA) that differs from traditional arbitrary time shaping. The shaping process and output characteristics were analyzed in detail. The theoretical and experimental results show that an arbitrary time-shaping pulse output with a large time-shaping contrast, fast-rising edge, and wide spectral width can be obtained. The time shaping contrast of the shaped pulse can be >300:1, and the spectral width is ~40 nm. The output time waveform is smoother than in traditional schemes, and the noise-like modulation is approximately 4% (approximately equal to the unshaped initial amplified spontaneous emission source). The arbitrary time-shaping scheme based on OPA provides a viable solution for the temporal waveform shaping of broadband low-coherence light. |
| first_indexed | 2024-03-11T02:01:47Z |
| format | Article |
| id | doaj.art-3a9059e984b04285bfbf7ddf9d89ea7e |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T02:01:47Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-3a9059e984b04285bfbf7ddf9d89ea7e2023-11-18T12:08:08ZengMDPI AGPhotonics2304-67322023-06-0110667310.3390/photonics10060673Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric AmplificationYue Wang0Xiaochao Wang1Meizhi Sun2Xiao Liang3Hui Wei4Wei Fan5Key Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaLaser–plasma interactions (LPIs) hinder the interaction of high-energy laser pulses with targets. The use of broadband low-coherence light has been proposed to reduce the impact of LPIs. In this study, to improve the time–frequency characteristics of broadband low-coherence optical seeds, we proposed an arbitrary time-shaping technique scheme based on optical parametric amplification (OPA) that differs from traditional arbitrary time shaping. The shaping process and output characteristics were analyzed in detail. The theoretical and experimental results show that an arbitrary time-shaping pulse output with a large time-shaping contrast, fast-rising edge, and wide spectral width can be obtained. The time shaping contrast of the shaped pulse can be >300:1, and the spectral width is ~40 nm. The output time waveform is smoother than in traditional schemes, and the noise-like modulation is approximately 4% (approximately equal to the unshaped initial amplified spontaneous emission source). The arbitrary time-shaping scheme based on OPA provides a viable solution for the temporal waveform shaping of broadband low-coherence light.https://www.mdpi.com/2304-6732/10/6/673ICFlaser–plasma interactionbroadband low-coherence light sourcearbitrary time shapingOPA |
| spellingShingle | Yue Wang Xiaochao Wang Meizhi Sun Xiao Liang Hui Wei Wei Fan Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification Photonics ICF laser–plasma interaction broadband low-coherence light source arbitrary time shaping OPA |
| title | Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification |
| title_full | Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification |
| title_fullStr | Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification |
| title_full_unstemmed | Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification |
| title_short | Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification |
| title_sort | arbitrary time shaping of broadband low coherence light based on optical parametric amplification |
| topic | ICF laser–plasma interaction broadband low-coherence light source arbitrary time shaping OPA |
| url | https://www.mdpi.com/2304-6732/10/6/673 |
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