基于分布式布拉格反射器的ASE消除噪声波长过器用于未来的芯片规模量子光子电路
Optics express
|November 14, 2024
概括
一种新型的紧可调共振过器抑制了来自激光器的放大自发噪声. 这种光子学装置实现了用于纯/纠光子对生成的宽带外排斥.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 量子信息科学 量子信息科学
- 集成光学 集成光学 集成光学
背景情况:
- 生成纯/纠光子对需要抑制来自激光器的放大自发噪声.
- 现有的过器往往缺乏足够的带外排斥,或者不够紧,无法在芯片上集成.
- 兼容CMOS的光子学为微型光学设备提供了一个平台.
研究的目的:
- 设计和演示一个紧的,可调节的共振过器,用于芯片上放大自发噪声抑制.
- 在光子平台中实现超宽带外排斥.
- 通过过的激光噪声来实现纯/纠光子对的高效生成.
主要方法:
- 一个紧的可调节共振波器的新设计,使用两个相同的apodized分布式格子结构.
- 设备参数的理论模拟和优化,以实现低插入损失和所需的传输峰值.
- 在在绝缘体上的肋骨波导结构上进行制造和实验验证.
- 集成微型加热器用于共振波长的热光调节.
主要成果:
- 一个长度为~35μm的装置实现了~60nm的排斥波段,在~1550nm时达到~40dB的灭绝.
- 实验结果与停止带宽和共振波长的理论模拟非常相匹配.
- 正如预测的那样,观察到插入损失和Q值之间的权衡.
- 热光学调实现了96分钟/兆瓦的速度,抑制了的激光噪声~40dB.
结论:
- 新型紧可调节的共振过器有效地抑制了来自激光器的放大自发噪声.
- 该设备适用于使用光子学在纯/纠光子对生成中的芯片应用.
- 展示的过器提供广泛的带外排斥和可调节的特性.
相关概念视频
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Parallel Resonance
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:


