Title :
High-efficiency optical coupling to planar photodiode using metal reflector loaded Waveguide grating coupler
Author :
Li, G. ; Hashimoto, Y. ; Ebuchi, S. ; Maruyama, T. ; Iiyama, K.
Author_Institution :
Natural Sci. & Technol., Kanazawa Univ., Kanazawa, Japan
Abstract :
We propose a high-efficient vertical optical coupler using an amorphous Si waveguide grating coupler with top reflector. The coupling efficiency of 80% is calculated at the grating period of 380 nm and the duty ratio of 0.75 with top metal reflector.
Keywords :
amorphous semiconductors; diffraction gratings; elemental semiconductors; optical couplers; optical planar waveguides; photodiodes; silicon; Si; amorphous Si waveguide grating coupler; coupling efficiency; duty ratio; grating period; high-efficient vertical optical coupling; planar photodiode; top metal reflector; Couplers; Couplings; Gratings; Metals; Optical coupling; Optical reflection; Optical waveguides;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices (NUSOD), 2012 12th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-1602-6
DOI :
10.1109/NUSOD.2012.6316522
