Title :
Refractive index buffer enhanced out-of-plane coupling in silicon-on-insulator
Author :
Li, Z.Y. ; Zhu, Y. ; Zhou, L. ; Xiao, X. ; Li, Y.T. ; Yu, D.Y. ; Yu, J.Z.
Author_Institution :
State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci. (CAS), Beijing, China
Abstract :
A refractive index buffer enhanced grating coupler in silicon-on-insulator (SOI) was demonstrated. By a PMMA cladding layer, the grating coupler with the efficiency of 44% and 3-dB bandwidth of > 40 nm was obtained.
Keywords :
buffer layers; diffraction gratings; optical fibre cladding; optical fibre couplers; refractive index; silicon-on-insulator; PMMA cladding layer; grating coupler; out-of-plane coupling; refractive index buffer; silicon-on-insulator; Buffer layers; Coupling circuits; Diffraction gratings; Etching; Fiber gratings; Optical coupling; Optical diffraction; Optical waveguides; Refractive index; Silicon on insulator technology; coupler; diffractive grating; silicon photonics;
Conference_Titel :
Group IV Photonics, 2009. GFP '09. 6th IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-4402-1
Electronic_ISBN :
1949-2081
DOI :
10.1109/GROUP4.2009.5338322
