在光子集成电路中的MEMS可调节的极化管理
Optics express
|September 15, 2023
概括
我们推出了新的微电机系统 (MEMS),用于光子集成电路 (PIC) 中芯片上的极化管理. 这些MEMS设备使可调节的偏振分裂和旋转成为可能,这是PIC以前无法实现的关键功能.
科学领域:
- 光子学是指光子学的使用方法.
- 集成光学 集成光学 集成光学
- 微电机系统 (MEMS) 是指微电机系统.
背景情况:
- 光纤是极化不敏感的,但光子集成电路 (PIC) 经常显示显著的极化依赖.
- 越来越成熟的PIC需要芯片上的极化管理解决方案.
- 微电机系统 (MEMS) 在PIC中用于开关和相位转移,但不广泛用于极化控制.
研究的目的:
- 提出并模拟两种新的光学MEMS架构,用于芯片上的可调节偏振管理.
- 为了启用关键的两极化功能,如在PIC中分割和旋转.
- 解决当前PICs在极化控制方面的局限性.
主要方法:
- 一个具有MEMS可调节间隙的定向合器的设计,用于可变极化分裂.
- 开发一个MEMS扰波器在空气覆盖的波导上,用于可调节的极化旋转.
- 电磁模拟用于评估性能指标.
主要成果:
- 模拟极化灭绝超过25dB的两个拟议的架构.
- 演示了高达100 nm的广泛操作带宽.
- 验证MEMS作为一种可行的技术,用于先进的PIC偏振控制.
结论:
- 拟议的光学MEMS架构为PIC中可调节的偏振分裂和旋转提供了有效的解决方案.
- 这些基于MEMS的设备可以实现高极化灭绝比率和广泛的操作带宽.
- 建议进一步调查执行方案和制造,以便在造厂实施.
相关概念视频
Biasing of Metal-Semiconductor Junctions
279
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
279
MOSFET: Enhancement Mode
378
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
378
Biasing of P-N Junction
590
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
590


