Scholarlink

<p>This paper demonstrates a tunable and switchable multi-wavelength Erbium-doped fiber laser (EDFL) utilizing a cascaded architecture of nonlinear polarization rotation (NPR) and Sagnac loop filter. By adjusting intracavity polarization controllers (PCs), the fiber laser achieves switchable output from 1 to 11 distinct wavelengths with a tuning range exceeding 29.6&#xa0;nm. Critically, the wavelength spacing between output channels can be dynamically modulated. The laser exhibits a high optical signal-to-noise ratio (OSNR) of 25.62 dB. This highly flexible EDFL design, offering dynamic control over the output wavelength count and range, coupled with a reconfigurable wavelength spacing that is set by the length of the PMF within the Sagnac filter, is well-suited for wavelength division multiplexing systems and fiber optic sensing applications requiring adaptable multi-wavelength sources.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Flexible and switchable multi-wavelength erbium-doped fiber laser with reconfigurable spacing via NPR and a tunable Sagnac filter

  • 期刊论文

  • 发表日期：

    2025年11月19日

查看全文
  • Shaoyu Jia,
  • Lida Li,
  • Mingjian Ma,
  • Sa Zhang,
  • Shuguang Li,
  • Hailiang Chen

摘要

This paper demonstrates a tunable and switchable multi-wavelength Erbium-doped fiber laser (EDFL) utilizing a cascaded architecture of nonlinear polarization rotation (NPR) and Sagnac loop filter. By adjusting intracavity polarization controllers (PCs), the fiber laser achieves switchable output from 1 to 11 distinct wavelengths with a tuning range exceeding 29.6 nm. Critically, the wavelength spacing between output channels can be dynamically modulated. The laser exhibits a high optical signal-to-noise ratio (OSNR) of 25.62 dB. This highly flexible EDFL design, offering dynamic control over the output wavelength count and range, coupled with a reconfigurable wavelength spacing that is set by the length of the PMF within the Sagnac filter, is well-suited for wavelength division multiplexing systems and fiber optic sensing applications requiring adaptable multi-wavelength sources.