Coupling loss reducing for fiber Raman gas detection technology

Jialin Hu; Shubo Jiang; Xiumei Zhang

doi:10.1117/12.2265243

23 January 2017 Coupling loss reducing for fiber Raman gas detection technology

Jialin Hu, Shubo Jiang, Xiumei Zhang

Proceedings Volume 10322, Seventh International Conference on Electronics and Information Engineering; 1032222 (2017) https://doi.org/10.1117/12.2265243
Event: Seventh International Conference on Electronics and Information Engineering, 2016, Nanjing, China

Abstract

During the design of the photonic crystal fiber Raman gas detection device and taking the cost and practicability in to consideration, we choose to use a stainless steel tube as a connector for the connecting of the HCPCF and SMF to replace the fiber fusing splice. Basis on the measurement to reduce coupling loss, we calculated the optimum fiber gap for maximum light coupling and to reduce Fresnel loss. Using the stainless steel tube not only result in low loss but also benefit input of the sample gas and recycling of the fiber which is very expensive. By adjusting the central alignment of the stainless steel tube we can easily control the fiber deviation loss for specific type of SMF and HCPCF. The mode mismatch is also demonstrated.

Citation Download Citation

Jialin Hu, Shubo Jiang, and Xiumei Zhang "Coupling loss reducing for fiber Raman gas detection technology", Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 1032222 (23 January 2017); https://doi.org/10.1117/12.2265243

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