3HAEIWA H, NAGANAWA T, KOKUBUM Y. Wide range center wavelength trimming of vertically coupled micro ring resonator filter by direct UV irradiation to SiN ring core[J]. IEEE Photon Teehnol Lett, 2004,16(1): 135 - 137.
4RABIEI P, STEIER W H, ZHANG C, et al. Polymer micro-ring filters and modulators [J]. J Lightwave Technology, 2002, 20(11): 1968 - 1975.
5VAN V, LITTLE B E, CHU S T, et al. Micro-ring resonator filters[A]. IEEE Lasers and Electro-Optics Society[C]. 2004:571-572.
6LANDOBASA Y M, DARMAWAN S, CHIN M K. Matrix analysis of 2-D microresonator lattice optical filters[ J ]. IEEE J Quantum Electronics, 2005, 41 (11): 1410 - 1418.
7LEE H S, CHOI C H. A nonunitary transfer matrix method for practical analysis of racetrack microresonator waveguide[J]. IEEE Photon Technol Lett,2004,16(4) : 1086 - 1088.