概括
一种新的重叠控制的多层线对线技术显著减少了纤维网格中的散射和插入损失. 这一进步使高功率光纤激光器能够有效地刺激拉曼散射抑制.
科学领域:
- 光学和光子学 在光学和光子学.
- 材料科学 材料科学 材料科学
- 激光物理 激光物理
背景情况:
- 五秒激光直接写的光纤网格具有很高的散射和插入损失,限制了它们在高功率光纤激光器中的使用.
- 纤维网格中的II型调制有助于散射和插入损失.
- 刺激拉曼散射 (SRS) 是光纤激光系统的一个重要问题.
研究的目的:
- 开发一种新的纤维网格制造技术,以减少散射和插入损失.
- 创建曲和倾斜的纤维布拉格格 (CTFBGs) 以有效地抑制SRS.
- 为了证明这些CTFBG在光纤激光系统中的应用.
主要方法:
- 实施一个重叠控制的多层线对线 (OCML-LBL) 技术.
- 制造覆盖纤维核心的平面折射率调制 (RIM).
- 将制造的CTFBG集成到光纤激光系统中,以抑制SRS.
主要成果:
- 该OCML-LBL技术有效地减少了散射和插入损失.
- 制造的CTFBG显示带宽从38nm到100nm以上,效率高达99.9%.
- 在光纤激光系统中实现了显著的SRS抑制.
- CTFBGs表现出极好的耐温度,应变和曲的稳定性.
结论:
- OCML-LBL技术为制造高性能纤维网格提供了一个有前途的解决方案.
- 这种方法可以在纤维激光器中创建低损耗,高效的CTFBGs来抑制SRS.
- 开发的技术有可能在各种光纤激光应用中进行定制的纤维格子铭文.
相关概念视频
01:26Raman Spectroscopy Instrumentation: Overview
993
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
993
01:16Confocal Fluorescence Microscopy
19.9K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
19.9K