Title :
Matched MFD for fiber-to-vertical nanoslot waveguide couplers
Author :
Abd Rahmani, M. Kamil ; Manaf, N. Aina C. ; Yusoff, Mohd Hanapiah M.
Author_Institution :
Sch. Phys. & Mater. Studies, Univ. Teknol. MARA, Shah Alam, Malaysia
Abstract :
The design of fiber-to-nanoslot waveguide low coupling loss is proposed and demonstrated. The light from fiber is coupled into the fiber-adapted waveguide based on an inverted taper structure with matching mode size. The parameters of taper tip width and taper length have been evaluated by means of overlap integral and 3D-FIMMPROP simulations at λ=1550 nm. Slightly larger fiber MFD of 2.9 μm found to be good match and achieved total coupling efficiency of 93% for an inverted taper tip width of 60 nm and length of 50 in TE polarized.
Keywords :
nanophotonics; optical couplers; optical fibres; optical losses; optical waveguides; 3D-FIMMPROP simulations; cou- pling loss; coupling efficiency; fiber-adapted waveguide; fiber-to-vertical nanoslot waveguide couplers; inverted taper structure; matched MFD; mode size; size 60 nm to 50 mum; taper length; taper tip width; wavelength 1550 nm; Couplers; Couplings; Indexes; Optical coupling; Optical polarization; Optical waveguides; Silicon; Nanoslot waveguide; Optical waveguide; fiber adapted waveguide; fiber coupling; inverted taper;
Conference_Titel :
Photonics (ICP), 2014 IEEE 5th International Conference on
Conference_Location :
Kuala Lumpur
DOI :
10.1109/ICP.2014.7002367
