title: Thermo-optical tunable planar ridge microdisk resonator in silicon-on-insulator.
abstract: In this work, we design and demonstrate planar ridge microdisk resonators in silicon-on-insulator, which assemble the advantages of microring and microdisk resonators. The dependences of resonator optical modes on the slab thickness and the waveguide-to-resonator coupling gap are investigated. The highest Q-factor obtained is ~4 × 10(5). Using the thermo-optical effect, we attain a resonance wavelength tuning efficiency of ~66.5 pm/mW. We also compare the transmission spectra measured by using wavelength-scanning method and voltage-scanning method and show potential application for the adopted voltage-scanning method.
authors.affiliation: Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research), Singapore, Singapore. songjf@ime.a-star.edu.sg
authors.forename: Junfeng
authors.initials: J
authors.lastname: Song
authors.forename: Qing
authors.initials: Q
authors.lastname: Fang
authors.forename: Xianshu
authors.initials: X
authors.lastname: Luo
authors.forename: Hong
authors.initials: H
authors.lastname: Cai
authors.forename: T-Y
authors.initials: TY
authors.lastname: Liow
authors.forename: M-B
authors.initials: MB
authors.lastname: Yu
authors.forename: G-Q
authors.initials: GQ
authors.lastname: Lo
authors.forename: D-L
authors.initials: DL
authors.lastname: Kwong