P. P. YupapinP. ChunpangMahidol University2018-07-122018-07-122008-03-01Optics and Laser Technology. Vol.40, No.2 (2008), 273-277003039922-s2.0-34848822488https://repository.li.mahidol.ac.th/handle/123456789/19218We present the use of a fiber optic Sagnac interferometer incorporating one and two fiber optic ring resonators to characterize experimentally the optical switching behaviors. These prototypes were formed by the Sagnac interferometer and serially connected to the ring resonators. The input optical signal was launched via one end of the interferometer, where the polarization control was employed to obtain the maximum optical transmission power. Results obtained have shown that the increasing in switching time (i.e. narrower spectral width) and power can be achieved. © 2007 Elsevier Ltd. All rights reserved.Mahidol UniversityEngineeringMaterials SciencePhysics and AstronomyArticleSCOPUS10.1016/j.optlastec.2007.04.012