用于宽带超连续发电和f-2f干扰仪的圆悬浮芯纤维
Optics letters
|April 15, 2025
概括
研究人员从-木-酸盐玻璃开发了新型的状纤维,用于高效的八度跨度超级连续生成. 这些纤维使宽带超连续从低能脉冲中实现,这对于基于微共振器的频率是至关重要的.
科学领域:
- 非线性光学是一种非线性光学.
- 材料科学是一种材料科学.
- 光纤光学是指光纤的使用.
背景情况:
- 八度跨度超连续 (SC) 生产通常需要高脉冲能量和长纤维.
- 高重复率激光器,像基于微共振器的频率 (microcombs),提供较低的脉冲能量,需要专门的纤维.
- 纤维需要高非线性,高效的合,并为宽带SC生成量身定制的分散.
研究的目的:
- 为了呈现由--酸盐 (PBG) 玻璃制成的状纤维,用于SC生成.
- 为了在低输入脉冲能量下实现八度范围的SC生成.
- 为了实现频率计量学中的应用,例如微电的f-2f干扰仪.
主要方法:
- 从高非线性PBG玻璃制造形纤维.
- 使用未经削的断面 (10微米核心) 进行高效的与激光源的合.
- 将缩的腰部核心直径减少到1.5μm以增强非线性效应.
主要成果:
- 证明了从760到1860nm的八度跨度超连续生成.
- 通过低输入脉冲能量 (0.03-0.05 nJ) 实现了SC生成.
- 观察到的超连续光谱与定期极化酸 (PPLN-SHG6) 兼容,用于f-2f干涉测量.
结论:
- 圆的PBG玻璃纤维对于使用低能脉冲的宽带SC生成是有效的.
- 这些纤维促进了高效的合和增强的非线性.
- 开发的纤维适用于先进的应用,比如微型电池中的载体外偏移频率测量.
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