Low-noise 2-GHz figure-9 fiber laser based on passive harmonic mode-locking.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2024-11-15 DOI:10.1364/OL.538386

Jindong Ma, Menglong Ma, Huanhuan Liu, Perry Ping Shum

引用次数: 0

Abstract

We have proposed and demonstrated the generation of a high-repetition-rate ultrashort pulse with long-term stability and low noise based on a harmonic mode-locked (HML) figure-9 fiber laser. Different HML orders from the 2nd to the 13th are generated by adjusting the pump power, net dispersion, and wave plate angles. A 2-GHz HML pulse is obtained with a 155-MHz fundamental repetition rate in a Yb-doped fiber laser, and the corresponding supermode suppression level is as high as 50 dB. The average power of the output pulse is nearly 200 mW, and the compressed pulse duration is 535 fs. To the best of our knowledge, 2 GHz and 196 mW represent, respectively, the highest repetition rate and output power in a figure-9 fiber laser. This work offers a potential pathway to achieve high-repetition-rate ultrashort pulses in the GHz range with high power and low noise levels.

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基于无源谐波锁模的低噪声 2-GHz 图 9 光纤激光器。

我们提出并演示了基于谐波锁模（HML）图-9 光纤激光器生成具有长期稳定性和低噪声的高重复率超短脉冲的方法。通过调整泵浦功率、净色散和波板角，可产生从第 2 阶到第 13 阶的不同 HML 阶数。在掺镱光纤激光器中以 155 MHz 的基频重复率获得了 2 GHz 的 HML 脉冲，相应的超模抑制水平高达 50 dB。输出脉冲的平均功率接近 200 mW，压缩脉冲持续时间为 535 fs。据我们所知，2 GHz 和 196 mW 分别代表了图-9 光纤激光器的最高重复频率和输出功率。这项工作为在 GHz 范围内实现高重复率超短脉冲、高功率和低噪音水平提供了一条潜在的途径。

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 letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.