Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers
In this study, we investigated the effect of self-phase modulation (SPM)-induced modulation instability (MI) on the spectral purity of high-power narrow-linewidth fiber amplifiers and established a spectral evolution model for SPM-induced MI in those amplifiers. The spectral evolution process of MI...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/10/12/1330 |
| _version_ | 1797379654971031552 |
|---|---|
| author | Xiaoqin Shan Yunhan Zheng Rihong Zhu |
| author_facet | Xiaoqin Shan Yunhan Zheng Rihong Zhu |
| author_sort | Xiaoqin Shan |
| collection | DOAJ |
| description | In this study, we investigated the effect of self-phase modulation (SPM)-induced modulation instability (MI) on the spectral purity of high-power narrow-linewidth fiber amplifiers and established a spectral evolution model for SPM-induced MI in those amplifiers. The spectral evolution process of MI under different laser powers was simulated and analyzed. The results show that, at low power (100 W), SPM can cause a dynamic change in the spectral sideband secondary peak and the spectral wingspan. An increase in laser power led to the cascade effect of MI, forming a zigzag secondary sideband with a larger spectral width and causing the spectral main peak and spectral broadening to split. Experiments based on the fiber Bragg grating (FBG) of oscillating seed sources were carried out on high-power narrow-linewidth laser amplifiers, and the above spectral evolution phenomenon was observed. The experimental results indicate that the spectral evolution model based on SPM-induced MI can effectively explain the dynamic change in the spectral secondary peak, spectral wingspan and zigzag broadening phenomenon in the power amplification process of narrow-linewidth lasers. |
| first_indexed | 2024-03-08T20:26:11Z |
| format | Article |
| id | doaj.art-88e54aa47a67404bb00a82a8a7798f2c |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-08T20:26:11Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-88e54aa47a67404bb00a82a8a7798f2c2023-12-22T14:32:48ZengMDPI AGPhotonics2304-67322023-11-011012133010.3390/photonics10121330Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber AmplifiersXiaoqin Shan0Yunhan Zheng1Rihong Zhu2School of Electronic and Optical Engineering, Nanjing University of Science and Technology Zijin College, Nanjing 210023, ChinaNorla Institute of Technical Physics, Chengdu 610046, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaIn this study, we investigated the effect of self-phase modulation (SPM)-induced modulation instability (MI) on the spectral purity of high-power narrow-linewidth fiber amplifiers and established a spectral evolution model for SPM-induced MI in those amplifiers. The spectral evolution process of MI under different laser powers was simulated and analyzed. The results show that, at low power (100 W), SPM can cause a dynamic change in the spectral sideband secondary peak and the spectral wingspan. An increase in laser power led to the cascade effect of MI, forming a zigzag secondary sideband with a larger spectral width and causing the spectral main peak and spectral broadening to split. Experiments based on the fiber Bragg grating (FBG) of oscillating seed sources were carried out on high-power narrow-linewidth laser amplifiers, and the above spectral evolution phenomenon was observed. The experimental results indicate that the spectral evolution model based on SPM-induced MI can effectively explain the dynamic change in the spectral secondary peak, spectral wingspan and zigzag broadening phenomenon in the power amplification process of narrow-linewidth lasers.https://www.mdpi.com/2304-6732/10/12/1330high-power narrow-linewidth fiber laserself-phase modulation (SPM)modulation instability (MI)spectral purificationspectral evolution model |
| spellingShingle | Xiaoqin Shan Yunhan Zheng Rihong Zhu Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers Photonics high-power narrow-linewidth fiber laser self-phase modulation (SPM) modulation instability (MI) spectral purification spectral evolution model |
| title | Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers |
| title_full | Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers |
| title_fullStr | Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers |
| title_full_unstemmed | Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers |
| title_short | Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers |
| title_sort | self phase modulation induced instability of high power narrow linewidth fiber amplifiers |
| topic | high-power narrow-linewidth fiber laser self-phase modulation (SPM) modulation instability (MI) spectral purification spectral evolution model |
| url | https://www.mdpi.com/2304-6732/10/12/1330 |
| work_keys_str_mv | AT xiaoqinshan selfphasemodulationinducedinstabilityofhighpowernarrowlinewidthfiberamplifiers AT yunhanzheng selfphasemodulationinducedinstabilityofhighpowernarrowlinewidthfiberamplifiers AT rihongzhu selfphasemodulationinducedinstabilityofhighpowernarrowlinewidthfiberamplifiers |