塩﨑君（B3）と田村君（B2）の論文が Japanese Journal of Applied Physics に掲載されました。

偏波維持光ファイバ中のモード間干渉スペクトルに基づく歪センシングを初実証した塩﨑君（B3）と田村君（B2）の論文が、Japanese Journal of Applied Physics に掲載されました。両名とも、学部1～2年生から研究室に所属して研究活動を進める ROUTE 学生 です。

T. Shiozaki, A. Tamura, and Y. Mizuno, “Strain sensing based on modal interference spectrum in polarization-maintaining fiber,” Jpn. J. Appl. Phys., vol. 63, no. 9, 098001 (2024).

We investigate a simple structure in which a polarization-maintaining fiber (PMF) is sandwiched between two single-mode fibers (SMFs). By injecting broadband light and observing the modal interference spectrum of the transmitted light in the 870 nm range, we identify a clear shift dependent on the strain applied to the PMF. In addition, we demonstrate that in the same wavelength range, the strain applied to the SMFs before and after the PMF does not influence the interference spectrum. This result confirms that only the PMF segment exhibits strain sensitivity.