高收益远调非线性频率转换在几种模式的分级指数光纤中
Karolina Stefańska1,2, Pierre Béjot1, Julien Fatome1
1Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), UMR6303 CNRS-Université Bourgogne Franche-Comté, Dijon, 21000, France.
Scientific reports
|July 9, 2024
概括
在分级指数的纤维中实现了高增益的非线性频率转换,延伸到可见和中红外波长. 这一突破使得即使在有损失的光谱区域中,波长也能有效地转换.
科学领域:
- 非线性光学是非线性光学.
- 光纤光学是指光纤的使用.
- 光子学 是一个光子学.
背景情况:
- 非线性频率转换对于产生新的波长至关重要.
- 纤维通常在可见光和中红外线中表现出高损耗.
- 少数模式分级索引纤维提供独特的光传播特性.
研究的目的:
- 为了证明等级指数纤维的高增益非线性频率转换.
- 将高效的波长转换扩展到可见光和中红外光谱区域.
- 为了研究内和间四波混合的作用.
主要方法:
- 非线性光学过程的理论建模.
- 使用1.064微米激光器的实验设置.
- 频率转换在几模分级索引纤维中的表征.
主要成果:
- 在频率转换中获得了高收益 (数百dB/m).
- 扩展转换效率到低于0.65微米和高于3.5微米的波长.
- 转换成丢失的二氧化光谱区域的证明可行性.
结论:
- 分级索引纤维对高增益波长转换具有前景.
- 内模和间模四波混合是关键机制.
- 这项工作为具有挑战性的光谱范围的新型光源开辟了道路.
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