完全可重新配置的基于MEMS的二级合共振器光学波导 (CROW) 具有超低调节能
Optics express
|December 2, 2023
概括
我们开发了一种可重新配置的光子微电子机械系统 (MEMS) 过器,用于光学信号处理. 这种集成设备实现了高灭率和可调节波长,低能耗.
科学领域:
- 综合光子学 综合光子学
- 光学信号处理的光学信号处理.
- 微电子机械系统 (MEMS) 是指微电子机械系统.
背景情况:
- 级联微环共振器使合共振器光学波导 (CROW) 配置中的灵活过器设计成为可能.
- 具有高灭绝比率 (ERs) 的高阶CROW过器由于制造和鱼性要求而具有挑战性.
研究的目的:
- 使用光子MEMS,提供一个完全集成的,可重新配置的二级CROW过器.
- 为了证明对ER和中心波长的精确控制.
主要方法:
- 利用光子MEMS用于可调节的定向合器和通过纳米级机械波导移位的相变换器.
- 实现了二级CROW过器架构.
主要成果:
- 实现了超过25dB的实验ER.
- 在单个微环共振器的0.123纳米自由光谱范围上演示了连续波长调节.
- 通过调整ER和共振波长,在二级CROW过器中展示了重新配置能力.
结论:
- 开发的光子MEMS CROW过器为ER和中心波长提供了完全的重新配置.
- 与传统的集成相变器相比,实现了显著较低的调节能量 (<22 pJ) 和静电耗电 (<1 μW).
相关概念视频
Oscillations In An LC Circuit
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
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:
Design Example: Underdamped Parallel RLC Circuit
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
Starting with a fixed...


