论文标题
Tantala综合光子学的组速度分散工程
Group-velocity dispersion engineering of tantala integrated photonics
论文作者
论文摘要
设计集成的光子学，特别是为了利用Kerr-Nonlinear光学功能，需要对红外光谱范围可见的折射率进行准确而精确的知识。 Tantala（TA_2O_5）是一个新兴的材料平台，用于集成光子学和纳米光子学，可提供宽带超值损失，中等高的非线性，以及可扩展和异质整合的优势。我们在Tantala的薄膜上介绍了折射率的测量，并探索了该数据对使用波导和环形谐振器设备的组速度分散（GVD）工程的功效。特别是，在制造的波导中观察到的超脑生成的光谱范围，以及光谐振器中游离光谱范围（FSR）的波长依赖性提供了对我们集成 - 光子学设计过程的敏感测试。我们的工作为Tantala开辟了新的设计可能性，其中包括带有八度的Soliton Microcombs。
Designing integrated photonics, especially to leverage Kerr-nonlinear optics, requires accurate and precise knowledge of refractive index across the visible to infrared spectral ranges. Tantala (Ta_2O_5) is an emerging material platform for integrated photonics and nanophotonics that offers broadband ultralow loss, moderately high nonlinearity, and advantages for scalable and heterogeneous integration. We present refractive-index measurements on a thin film of tantala, and we explore the efficacy of this data for group-velocity dispersion (GVD) engineering with waveguide and ring-resonator devices. In particular, the observed spectral extent of supercontinuum generation in fabricated waveguides, and the wavelength dependence of free spectral range (FSR) in optical resonators provide a sensitive test of our integrated-photonics design process. Our work opens up new design possibilities with tantala, including with octave-spanning soliton microcombs.
