Web15 de nov. de 2015 · The coupling efficiency as a function of incident wavelength is illustrated in Fig. 2 (a). All the important parameters used in the simulation are optimized as follows: the grating etching depth E is 350 nm, and a 160 nm-thick slab waveguide is left, grating period T is 545 nm, waveguide height is 220 nm for optical integration with other … Web3 de jun. de 2013 · We describe a high-efficiency grating coupler (GC) fabricated on a silicon-on-insulator wafer with 220 nm top silicon layer. One single 60 nm shallow etch is …
High efficiency binary blazed grating coupler for perfectly-vertical ...
WebA waveguide grating coupler based on a silicon nitride overlay at 1.55μm for TE polarization is designed with no experimental demonstration. Its coupling efficiency for a fiber is 76%, the 1dB bandwidth is 75nm, and the coupling angle is 10°. The effects of different device parameters on the coupling performance for the grating coupler are discussed. The … Web1 P a g e Design and fabrication guide for a new metamaterial as an absorber of visible light with exceptionally high absorption efficiency Vivek Khichar1, Nader Hozhabri2* 1and Ali R. Koymen 1Department of Physics, University of Texas at Arlington, Arlington, Texas 76019 2Nanotechnology Research Center, Shimadzu Institute, University of Texas at how to send a survey through teams
Design for broadband high-efficiency grating couplers - Optica
Web15 de out. de 2024 · We propose a novel high-efficiency, low-reflection, and fabrication-tolerant perfectly vertical grating coupler (PVGC) with a minimum feature size >200 nm to allow for fabrication using 193 nm ... Web9 de out. de 2006 · An experimental characterization of the grating couplers for sub-micrometer silicon-on-insulator (SOI) waveguides is presented. The grating couplers have been designed, realized, and characterized for the +1 diffraction order at an operating wavelength of 1.31 /spl mu/m for TE polarization. At the resonant angle, a coupling … WebHigh efficiency Silicon-on-Insulator grating coupler based on a poly-Silicon overlay Günther Roelkens, Dries Van Thourhout, Roel Baets Photonics Research Group, Ghent University – IMEC, Sint-Pietersnieuwstraat 41, B-9000 Ghent, Belgium [email protected] Abstract: A high efficiency broadband grating … how to send assignment email to professor