Cascaded second-order optical nonlinearities in on-chip micro rings.
Cascaded second-order optical nonlinearities in on-chip micro rings.
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DOI：
10.1364/oe.25.029927
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发表时间：
2017-11
期刊：
影响因子：
3.8
通讯作者：
R. Wolf;I. Breunig;H. Zappe;K. Buse
中科院分区：
文献类型：
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作者：
R. Wolf;I. Breunig;H. Zappe;K. Buse
我们展示了级联受激拉曼散射（SRS）、二次谐波产生（SHG）和和频产生（SFG）在集成片上低语廊谐振器（wgr）中的应用。这些基于铌酸锂的wgr采用高度并行的半导体制造技术，并辅以专门的抛光作为后处理步骤，因此代表了批量制造该系列非线性器件的新方法。我们在片上铌酸锂wgr上实现了创纪录的高q因子，达到3 × 106。此外，我们提出了一个灵活而稳定的耦合方案，这使我们有机会优化我们观察到的非线性光学过程的耦合。
We demonstrate cascaded Stimulated Raman Scattering (SRS), Second-Harmonic Generation (SHG), and Sum-Frequency Generation (SFG) in integrated on-chip whispering-gallery resonators (WGRs). These lithium niobate-based WGRs are fabricated using highly-parallel semiconductor manufacturing techniques coupled with specialized polishing as a post-processing step and thus represent a novel means for batch fabrication of this family of non-linear devices. We achieved record high Q-factors for on-chip lithium niobate WGRs reaching up to 3 × 106. Furthermore, we present a flexible but stable coupling scheme, which gives us the opportunity to optimize the coupling regarding the non-linear optical processes we observe.