基于时域合成的高效对称可调谐三角形波形生成

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

IEEE Photonics Technology Letters Pub Date : 2025-07-02 DOI:10.1109/LPT.2025.3585247

Xiaohong Lan;Yang Jiang;Jing Xu;Jinjian Feng;Yunkun Luo;Qianyou Long

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引用次数: 0

摘要

提出了一种高效率的三角波形发生器，并进行了实验验证。在高偏置电流下，在半导体光放大器的光调制辅助下，将正弦包络变换成暗抛物线波形。这种暗抛物线波形和延迟的亮抛物线波形在平衡光电探测器中重叠，产生两个斜率相反的线性函数，它们连接在一起形成目标波形。并进行了详细的理论分析和仿真。在实验中，通过简单地调整延时，成功地生成了对称系数在20% ~ 80%范围内可调的三角形波形，与理论预期很好地吻合。与以往基于谐波综合的方法相比，该方法在提高灵活性和精度的同时，大大降低了技术要求。

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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Efficient Symmetry-Tunable Triangular-Shaped Waveforms Generation via Time-Domain Synthesis

A high-efficiency triangular-shaped waveforms generator is proposed and experimentally demonstrated. Assisted by an optical-optical modulation in a semiconductor optical amplifier under a high bias current, a sinusoidal envelope is transformed into a dark parabolic waveform. This dark parabolic waveform and a delayed bright parabolic waveform are overlapped in a balanced photodetector, yielding two linear functions with slopes of opposite signs, which are jointed together to form the target waveforms. Theoretical analysis and simulations are given in detail. In the experiment, by simply adjusting the delay, triangular-shaped waveforms with tunable symmetry factor ranging from 20% to 80% are successfully generated, showing a good agreement with the theoretical expectations. Compared to the previous schemes based on the harmonics synthesis, this time-domain approach greatly reduces the technical requirement while the flexibility and accuracy is improved.

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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.