论文标题
linbo中的光致效应$ _3 $基于连续变量实验的基于$ _3 $的集成光电电路
Photorefractive effect in LiNbO$_3$-based integrated-optical circuits for continuous variable experiments
论文作者
论文摘要
我们研究了光疗法效应对专用于连续可变片上实验的尼ob酸锂的量子光子电路的影响。研究了电路主构建块，即腔，方向耦合器和定期固定的非线性波导。这项工作表明，即使光疗法的效果比空间模式较弱，它们也可能损害芯片量子光子学实验的成功。我们详细描述了导致识别此可能问题的表征方法。我们还研究了在多大程度上加热的程度代表了应对这种效果的可行解决方案。在1550 nm电信波长下生成非古典光线的背景下，我们专注于775 nm的光引起的光致纹效应。
We investigate the impact of photorefractive effect on lithium niobate integrated quantum photonic circuits dedicated to continuous variable on-chip experiments. The circuit main building blocks, i.e. cavities, directional couplers, and periodically poled nonlinear waveguides are studied. This work demonstrates that, even when the effect of photorefractivity is weaker than spatial mode hopping, they might compromise the success of on-chip quantum photonics experiments. We describe in detail the characterization methods leading to the identification of this possible issue. We also study to which extent device heating represents a viable solution to counter this effect. We focus on photorefractive effect induced by light at 775 nm, in the context of the generation of non-classical light at 1550 nm telecom wavelength.
