Method to enhance the single mode fiber coupling efficiency for obscured receiver by beam shaping
文献类型：期刊论文
| 作者 | Rui, Daoman1,2; Liu, Chao1,2; Chen, Mo1,2; Lan, Bin1,2; Xian, Hao1,2 |
| 刊名 | Physica Scripta
 |
| 出版日期 | 2020-01-28 |
| 卷号 | 95期号:3 |
| ISSN号 | 0031-8949 |
| 关键词 | aperture obstruction single-mode fiber coupling efficiency beam shaping |
| DOI | 10.1088/1402-4896/ab5a91 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Since the aperture obstruction contributes to an energy leak from the core to the sidelobe of the far field spot, the Gaussian mode of the single-mode fiber (SMF) will receive less energy leading to the coupling efficiency (CE) degradation. A method based on diffraction optical element (DOE) and wavefront corrector is introduced to reshape the plane wave with hollow uniform intensity into the plane wave with uniform intensity to improve the core energy of spot. The SMF CE with and without DOE for different central obscuration ratio e is studied by numerical simulation. The DOE is effective to improve the SMF CE. Without the DOE, the CE áhñ decreases from 81% to 54% when the central obscuration ratio e increases from 0 to 0.4. Compared with 54% CE at the e of 0.4, the CE áhñ can increase to 72%, 78% and 80% with 4 level, 8 level and 16 level quantized DOE, respectively. It is not necessary to use the DOE beam shaper when the central obscuration ratio e is small. The 4 level, 8 level and 16 level quantized DOE can obtain benefits of the CE when the central obscuration ratio e is above 21.6%, 11.5% and 7%, respectively. © 2020 IOP Publishing Ltd. |
| 出版地 | BRISTOL |
| WOS关键词 | LASER |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000510646400001 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/10126]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 作者单位 | 1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China; 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China |
| 推荐引用方式 GB/T 7714 | Rui, Daoman,Liu, Chao,Chen, Mo,et al. Method to enhance the single mode fiber coupling efficiency for obscured receiver by beam shaping[J]. Physica Scripta,2020,95(3). |
| APA | Rui, Daoman,Liu, Chao,Chen, Mo,Lan, Bin,&Xian, Hao.(2020).Method to enhance the single mode fiber coupling efficiency for obscured receiver by beam shaping.Physica Scripta,95(3). |
| MLA | Rui, Daoman,et al."Method to enhance the single mode fiber coupling efficiency for obscured receiver by beam shaping".Physica Scripta 95.3(2020). |
入库方式： OAI收割
来源：光电技术研究所
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