Mechanical sharing dual-comb fiber laser with 200 MHz repetition-rate

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-06-04 DOI:10.1016/j.optcom.2025.132078

Yiqiu Liang , Yao Li , Haonan Gong , Rui Guo , Handong Yao , Zehui Cui , Xiaorong Gu , Youwen Liu

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Abstract

We have introduced a mechanical sharing mode-locked dual-comb fiber laser with a linear and short laser cavity. Dual-comb ultrashort pulses with high repetition rate of 225 MHz, and repetition rate difference of 13.2 kHz have been obtained. Due to the special mechanical sharing design, the dual-comb laser source has exhibited relative stability and mutual coherence. The standard deviation of repetition rate difference is only 0.6 Hz over 30 min. Besides, the relative intensity noises of the two combs indicate that they have a high similarity of common-mode noise. It is also found that the dual-comb interferogram and its RF spectrum can remain stable for a long time without spectrum aliasing. Finally, a proof-of-principle dual-comb spectroscopy experiment with mode-resolved capability has been demonstrated. The experimental results indicate this mechanical sharing dual-comb fiber laser with good mode-locking performance and compact size has the potential to be used in various dual-comb measurements.

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200 MHz重复频率的机械共享双梳光纤激光器

我们介绍了一种具有线性短腔的机械共享锁模双梳光纤激光器。获得了高重复频率为225 MHz的双梳超短脉冲，重复频率差为13.2 kHz。由于特殊的机械共享设计，双梳状激光源具有相对稳定性和互相干性。重复频率差在30 min内的标准差仅为0.6 Hz。此外，两梳的相对强度噪声表明它们具有较高的共模噪声相似性。双梳干涉图及其射频频谱可以长时间保持稳定，不会出现频谱混叠现象。最后，进行了具有模式分辨能力的原理验证双梳光谱实验。实验结果表明，该机械共享双梳光纤激光器锁模性能好，尺寸紧凑，具有应用于各种双梳测量的潜力。

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

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.