概括
本研究介绍了一种嵌入式纤维拼接技术,使用玻璃玻璃管连接标准单模纤维和空心纤维. 这种方法避免了反射涂层的直接加热,从而实现了低插入损失的互连.
科学领域:
- 光电学是指光电子产品.
- 光纤光学是指光纤的使用.
- 材料科学 材料科学 材料科学
背景情况:
- 抗反射 (AR) 涂层可以减少光纤互连中的插入损失 (IL) 和反射.
- 纤维和涂层之间的热膨胀不匹配导致在聚变拼接过程中性能下降.
研究的目的:
- 开发一种嵌入式纤维拼接技术,克服热降解问题.
- 在标准单模光纤 (SSMF) 到空心光纤 (HCF) 互连中实现低IL和反射.
主要方法:
- 作为拼接桥,使用了一根状玻璃管 (BGT),避免了对AR涂层的直接加热.
- 优化结构参数,如GRIN长度和空气腔长度,以获得最小的IL.
- 用AR涂层GRIN末端对SSMF进行实验拼接,使其成为一个缩的BGT,与HCF拼接.
主要成果:
- 理论分析预测最低IL为0.13dB.
- 一个SSMF-HCF-SSMF互连链接实现了0.6dB的IL和-33.8dB的反射.
- 高级模式合被抑制在-35dB以下.
结论:
- 嵌入式拼接技术有效地连接SSMF和HCF,具有低IL和反射.
- 这种方法可以防止由热膨胀不匹配引起的性能下降.
- 该技术有助于HCF在苛刻环境中的应用.
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