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首页> 外文期刊>Optical fiber technology >Soliton mode-locked thulium-doped fiber laser with cobalt oxide saturable absorber
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Soliton mode-locked thulium-doped fiber laser with cobalt oxide saturable absorber

机译：具有氧化钴饱和吸收体的孤子锁模掺th光纤激光器

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摘要

In this work, we propose and demonstrate a mode-locked thulium doped fiber laser (TDFL) with an integrated cobalt oxide (Co3O4) saturable absorber (SA). The SA is fabricated by suspending Co3O4 nanosheets in a polymer film before being secured between two fiber ferules. The laser operates in the anomalous dispersion regime, confirmed by the Kelly sidebands observed in the obtained optical spectrum. Mode-locking operation is obtained at a low threshold pump power of 77.32 mW, with further optimizations made using a polarization controller The laser generates pulses with a repetition rate of 11.36 MHz and a pulse width of 1.39 ps. The generated pulses are highly stable, with a high signal-to-noise ratio of 46.00 dB and minimum power fluctuations indicating a long-term stability. This work demonstrates a simple and a low-cost laser that would have potential applications for operation near the 2.0-mu m region, especially for medical applications.
机译：在这项工作中，我们提出并演示了一种锁模th掺杂光纤激光器（TDFL），该激光器具有集成的氧化钴（Co3O4）饱和吸收剂（SA）。通过将Co3O4纳米片悬浮在聚合物膜中，然后将其固定在两个纤维套管之间，来制造SA。激光器在反常色散状态下工作，这在获得的光谱中观察到的凯利边带已得到证实。锁模操作是在77.32 mW的低阈值泵浦功率下获得的，并使用偏振控制器进行了进一步优化。激光器产生的脉冲重复频率为11.36 MHz，脉冲宽度为1.39 ps。所产生的脉冲是高度稳定的，具有46.00 dB的高信噪比和最小的功率波动，表明其具有长期稳定性。这项工作演示了一种简单且低成本的激光器，该激光器将有可能在2.0微米区域附近操作，特别是在医疗领域。

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