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薄膜铌酸锂集成非线性光学:走向全光信息时代的新路径

Integrated nonlinear photonics on thin-film lithium niobate: a route to an all-optical information era

  • 摘要: 光芯片的强大信息处理能力令人期待,而集成光子学是光芯片的基础。铌酸锂号称“光学硅”,是一种综合性能优异的多功能晶体材料。新兴的薄膜铌酸锂解决了传统铌酸锂基光学集成的重大难题,为现有集成光子学器件发展提供了新的爆发点,也为非线性光学的研究和应用提供了良好的平台,有望实现高效的片上全光信息处理。文章将介绍薄膜铌酸锂平台上非线性光学相关的最新重要突破和进展,并简述集成非线性光学如何助推未来光子学革命。

     

    Abstract: Photonic chips with powerful information processing capability are highly sought after. These are based on integrated photonics technology, wherein lithium niobate (LN), dubbed as the "silicon of photonics," is an excellent multifunctional crystal with comprehensive performance. The recent breakthrough using thin-film LN in overcoming the dense integration bottleneck of conventional LN based devices has provided a new avenue for integrated photonics, as well as a new platform for the research and application of nonlinear photonics, from which efficient all-optical on-chip processing may be expected in the near future. Here, we summarize recent important developments and explain how integrated nonlinear photonics based on thin-film LN will contribute to the future photonics revolution.

     

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