Kuczkowski, M., Ying, C., Quyen Dinh, X., Shum, P. P., Rutkowska, K. A., & Woliński, T. R. (2012). Microfiber Sagnac Interferometer for sensing applications. Photonics Letters of Poland, 4(4), pp. 134–136. https://doi.org/10.4302/photon. lett. pl.v4i4.358