通过使用模块操作,实验演示用于相位移PADC的动态范围增强方法,使用模块操作
Optics express
|October 20, 2023
概括
研究人员开发了一种新的方法,使用现有组件来提高光子模拟数字转换器 (PADC) 的动态范围. 这种技术提高了性能,而不需要新的自定义电路,为高动态范围的芯片应用提供了有前途的解决方案.
科学领域:
- 光子学 是一个光子学.
- 电气工程 电气工程
- 信号处理 信号处理
背景情况:
- 光子模拟数字转换器 (PADC) 对于高速信号处理至关重要.
- 提高PADC的动态范围对于提高信号保真度至关重要.
- 现有的方法通常需要复杂的定制电路.
研究的目的:
- 提出一种新的,组件效率高的方法来提高PADC动态范围.
- 为了利用多模干扰 (MMI) 合器的特性来改善量子化.
- 在相移光学定量化ADC (PSOQ-ADC) 芯片上证明拟议技术的有效性.
主要方法:
- 使用了之前报告的基于MMI合器的光学量子仪.
- 在模块操作中利用相周期.
- 在PSOQ-ADC芯片上实现并测试了该方法.
主要成果:
- 成功增强了PSOQ-ADC的动态范围,从[-Vπ, Vπ]到[-2Vπ, 2Vπ].
- 证明了进一步扩展动态范围的潜力.
- 重建的无线电频率 (RF) 信号,采样速率为30 Gs/s.
结论:
- 拟议的方法提供了一种新的方法,可以显著提高PADC动态范围.
- 这种技术可以避免需要额外的定制设计电路或组件.
- 为芯片上的PSOQ-ADC提供了一个有前途的解决方案.
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