Title :
Thermo-Optical Enhanced Silicon Wire Interleavers
Author :
Song, J.F. ; Tao, S.H. ; Fang, Q. ; Liow, T.Y. ; Yu, M.B. ; Lo, G.Q. ; Kwo, D.L.
Author_Institution :
Inst. of Microelectron., A*STAR, Singapore
Abstract :
Ring-resonator (RR) and ring-assisted (RA) Mach-Zehnder interferometer (MZI) interleaver structures with thermo-optical fine tuning are proposed and fabricated on silicon-on-insulator. With thermo-optical fine tuning, the crosstalks are improved from ~12 to ~22 dB and from ~6 to ~17 dB for RR- and RA-MZI interleavers, respectively. In a wavelength range of 40 nm, the RR-MZI interleaver structure has more uniform responses whereas the RA-MZI interleaver structure has sharper rolloffs.
Keywords :
Mach-Zehnder interferometers; elemental semiconductors; integrated optics; nanowires; optical communication equipment; optical fabrication; optical resonators; optical tuning; optical waveguide filters; semiconductor quantum wires; silicon; silicon-on-insulator; thermo-optical devices; wavelength division multiplexing; Si; integrated optics; optical communication; ring-assisted Mach-Zehnder interferometer; ring-resonator; silicon wire interleaves; silicon-on-insulator; thermo-optical fine tuning; thermo-optics effect; waveguide filters; wavelength 40 nm; Integrated optics; optical communication; silicon-on-insulator; thermo-optics effect; waveguide filters;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2007572
