High quality integrated diamond photonic devices have previously been demonstrated in applications from non-linear photonics to on-chip quantum optics. However, the small sample sizes of single crystal material available, and the difficulty in tuning its optical properties, are barriers to the scaling of these technologies. Both of these issues can be addressed by integrating micron scale diamond devices onto host photonic integrated circuits using a highly accurate micro-assembly method. In this work a diamond micro-disk resonator is integrated with a standard single mode silicon-on-insulator waveguide, exhibiting an average loaded Q-factor of 3.1x10^4 across a range of spatial modes, with a maximum loaded Q-factor of 1.05x10^5. The micron scale device size and high thermal impedance of the silica interface layer allow for significant thermal loading and continuous resonant wavelength tuning across a 450 pm range using a mW level optical pump. This diamond-on-demand integration technique paves the way for tunable devices coupled across large scale photonic circuits.

中文翻译：

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硅上金刚石微盘谐振器的全光调谐

先前已在从非线性光子学到片上量子光学的应用中展示了高质量的集成金刚石光子器件。然而，可用的单晶材料的小样本尺寸以及调整其光学特性的困难是这些技术规模化的障碍。这两个问题都可以通过使用高精度微组装方法将微米级金刚石器件集成到主光子集成电路上来解决。在这项工作中，金刚石微盘谐振器与标准单模绝缘体上硅波导集成，在一系列空间模式中表现出 3.1x10^4 的平均负载 Q 因子，最大负载 Q 因子为1.05x10^5。二氧化硅界面层的微米级器件尺寸和高热阻抗允许使用 mW 级光泵在 450 pm 范围内实现显着的热负载和连续谐振波长调谐。这种金刚石按需集成技术为跨大规模光子电路耦合的可调设备铺平了道路。