王さん（元研究員）の論文が Applied Physics Express に掲載されました。

コアオフセット構造を用いてモード間干渉による歪・温度センシングの感度を向上させた王さん（元研究員）の論文が、Applied Physics Express に掲載されました。

K. Wang, Y. Mizuno, H. Lee, X. Dong, W. Kurz, M. Fink, M. Jakobi, and A. W. Koch, “Experimental demonstration of offset-induced sensitivity enhancement in SMS-based temperature and strain sensing,” Appl. Phys. Express, vol. 16, no. 5, 052003 (2023).

A simple, inexpensive, and high-sensitivity temperature and strain sensor based on a single-mode–multimode–single-mode (SMS) structure with core offset is developed and experimentally characterized. This sensor does not require specialty fibers and can be fabricated using a standard fiber fusion splicer. The dependencies of the temperature and strain sensitivities on the core-offset amplitudes at the input and output single-mode/multimode fiber boundaries are investigated. The results indicate that the maximum temperature and strain sensitivities are two times and eight times higher than those of the standard SMS structure, respectively. The limit of the sensitivity enhancement by core offset is also revealed.