A Threshold-Independent Approach to Stochastic Fluctuations in Optoelectronic Oscillators

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-10-25 DOI:10.1109/LPT.2024.3486577

Meenwook Ha;Yanne K. Chembo

引用次数: 0

Abstract

Optoelectronic oscillators are time-delayed photonic systems able to generate pure microwave signals. The nonlinear dynamics of the systems can be well understood using an Ikeda-like equation governing the behavior of the output microwave envelope. This deterministic envelope equation can be converted into a stochastic phase dynamic equation using the Langevin approach, which accounts for both additive and multiplicative noise. Here, we can quantify the magnitude of the two noise contributions in the sub-threshold regime, and show that these measurements are predictive of the phase noise performance of the oscillator above threshold. Our theoretical analysis is found to be in excellent agreement with experimental measurements, which demonstrate a phase noise performance better than −130 dBc/Hz at 10 kHz offset from the carrier in the S-band.

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光电振荡器随机波动的阈值无关方法

光电振荡器是一种能够产生纯微波信号的延时光子系统。利用管理输出微波包络行为的类似池田方程，可以很好地理解系统的非线性动态。这种确定性包络方程可以通过朗格文方法转换成随机相位动态方程，该方法同时考虑了加法和乘法噪声。在这里，我们可以量化阈值以下机制中两种噪声贡献的大小，并表明这些测量结果可以预测阈值以上振荡器的相位噪声性能。我们的理论分析结果与实验测量结果非常吻合，实验结果表明，在 S 波段与载波偏移 10 kHz 时，相位噪声性能优于 -130 dBc/Hz。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.