تقرير
Break the efficiency limitations of dissipative Kerr soliton using nonlinear couplers
| العنوان: | Break the efficiency limitations of dissipative Kerr soliton using nonlinear couplers |
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| المؤلفون: | Li, Ming, Xue, Xiao-Xiao, Zhang, Yan-Lei, Xu, Xin-Biao, Dong, Chun-Hua, Guo, Guang-Can, Zou, Chang-Ling |
| المصدر: | Science China Physics, Mechanics & Astronomy 67, 234211 (2024) |
| سنة النشر: | 2022 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics |
| الوصف: | Dissipative Kerr soliton (DKS) offers a compact solution of coherent comb sources and holds huge potential for applications, but has long been suffering from poor power conversion efficiency when driving by a continuous-wave laser. Here, a general approach to resolving this challenge is provided. By deriving the critical coupling condition of a multimode nonlinear optics system in a generalized theoretical framework, two efficiency limitations of the conventional pump method of DKS are revealed: the effective coupling rate is too small and is also power-dependent. Nonlinear couplers are proposed to sustain the DKS indirectly through nonlinear energy conversion processes, realizing a power-adaptive effective coupling rate to the DKS and matching the total dissipation rate of the system, which promises near-unity power conversion efficiencies. For instance, a conversion efficiency exceeding $90\:\%$ is predicted for aluminum nitride microrings with a nonlinear coupler utilizing second-harmonic generation. The nonlinear coupler approach for high-efficiency generation of DKS is experimentally feasible as its mechanism applies to various nonlinear processes, including Raman and Brillouin scattering, and thus paves the way of micro-solitons towards practical applications. Comment: 8 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s11433-023-2288-y |
| URL الوصول: | http://arxiv.org/abs/2203.08453 |
| رقم الأكسشن: | edsarx.2203.08453 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s11433-023-2288-y |
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