全极化维护的Ho-doped纤维振荡器模式锁定与非线性极化演变
Optics letters
|December 22, 2023
概括
研究人员开发了一种自启动模式锁定光纤激光器,使用全极化维护 (PM) (Ho) 纤维. 这种新的振荡器提供稳定,干净的单子类脉冲,改善噪声和功率稳定性,用于先进的光学应用.
科学领域:
- 激光物理 激光物理
- 光纤光学是指光纤的使用.
- 非线性光学是非线性光学.
背景情况:
- 锁定模式的光纤激光器对于产生超短光脉冲至关重要.
- 保持极化 (PM) 的纤维在激光系统中提供了增强的稳定性.
- 运行在2μm左右的霍尔 (Ho) 合纤维激光器对于各种应用非常有价值.
研究的目的:
- 为了演示一个自启动模式锁定的全PM Ho-doped纤维振荡器.
- 为了研究振荡器不同输出端口的脉冲特征.
- 了解导致脉冲差异的潜在机制.
主要方法:
- 使用非线性极化演变 (NPE) 进行模式锁定.
- 配置一个线性空洞全PM Ho-doped纤维振荡器.
- 使用数值模拟来分析非线性光学相互作用.
主要成果:
- 实现了一个自启动模式锁定的全PM Ho-doped纤维振荡器,运行在2.08μm.
- 一个输出端口提供稳定,干净的单子类脉冲 (439 fs,7.5 mW).
- 另一个端口产生了复杂的,低质量的脉冲,归因于纤维内部的非线性相互作用.
结论:
- 这项研究成功地证明了PM-NPE模式锁定光纤振荡器的高质量脉冲输出.
- 了解非线性相互作用是控制这些系统中脉冲特征的关键.
- 这些发现为研究和应用提供了产生稳定,高质量的脉冲的途径.
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