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DOI | 10.1038/s41586-019-1245-9 |
Resonant electro-optic frequency comb | |
Rueda, Alfredo1,2,3,4,5,6; Sedlmeir, Florian1,2; Kumari, Madhuri5,6; Leuchs, Gerd1,2,5,6,7; Schwefel, Harald G. L.5,6 | |
2019-06-12 | |
发表期刊 | NATURE |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2019 |
卷号 | 568期号:7752页码:378-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Austria; New Zealand; Russia |
英文摘要 | High-speed optical telecommunication is enabled by wavelength-division multiplexing, whereby hundreds of individually stabilized lasers encode information within a single-mode optical fibre. Higher bandwidths require higher total optical power, but the power sent into the fibre is limited by optical nonlinearities within the fibre, and energy consumption by the light sources starts to become a substantial cost factor(1). Optical frequency combs have been suggested to remedy this problem by generating numerous discrete, equidistant laser lines within a monolithic device; however, at present their stability and coherence allow them to operate only within small parameter ranges(2-4). Here we show that a broadband frequency comb realized through the electro-optic effect within a high-quality whispering-gallery-mode resonator can operate at low microwave and optical powers. Unlike the usual third-order Kerr nonlinear optical frequency combs, our combs rely on the second-order nonlinear effect, which is much more efficient. Our result uses a fixed microwave signal that is mixed with an optical-pump signal to generate a coherent frequency comb with a precisely determined carrier separation. The resonant enhancement enables us to work with microwave powers that are three orders of magnitude lower than those in commercially available devices. We emphasize the practical relevance of our results to high rates of data communication. To circumvent the limitations imposed by nonlinear effects in optical communication fibres, one has to solve two problems: to provide a compact and fully integrated, yet high-quality and coherent, frequency comb generator; and to calculate nonlinear signal propagation in real time5. We report a solution to the first problem. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000464950700053 |
WOS关键词 | CONVERSION ; MICROWAVE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203078 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Max Planck Inst Sci Light, Erlangen, Germany; 2.Univ Erlangen Nuernberg, Inst Opt Informat & Photon, Erlangen, Germany; 3.SAOT, Erlangen, Germany; 4.IST Austria, Klosterneuburg, Austria; 5.Dodd Walls Ctr Photon & Quantum Technol, Dunedin, New Zealand; 6.Univ Otago, Dept Phys, Dunedin, New Zealand; 7.Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod, Russia |
推荐引用方式 GB/T 7714 | Rueda, Alfredo,Sedlmeir, Florian,Kumari, Madhuri,et al. Resonant electro-optic frequency comb[J]. NATURE,2019,568(7752):378-+. |
APA | Rueda, Alfredo,Sedlmeir, Florian,Kumari, Madhuri,Leuchs, Gerd,&Schwefel, Harald G. L..(2019).Resonant electro-optic frequency comb.NATURE,568(7752),378-+. |
MLA | Rueda, Alfredo,et al."Resonant electro-optic frequency comb".NATURE 568.7752(2019):378-+. |
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