Title :
High efficiency grating couplers for silicon-on-insulator photonic circuits
Author :
Wang, Zhechao ; Tang, Yongbo ; Wosinski, Lech
Author_Institution :
Sch. of ICT, R. Inst. of Technol. (KTH), Kista, Sweden
Abstract :
We have experimentally demonstrated two methods for improving the coupling efficiency of grating couplers. A grating coupler-polarization splitter is measured to have over 50% efficiency for both polarizations. 68% efficiency for single polarization is achieved by a nonuniform grating coupler.
Keywords :
diffraction gratings; integrated optoelectronics; optical couplers; optical fibre polarisation; silicon-on-insulator; coupling efficiency; grating coupler-polarization splitter; high efficiency grating couplers; nonuniform grating coupler; silicon-on-insulator photonic circuits; single polarization; Couplers; Couplings; Gratings; Optical coupling; Optical polarization; Scanning electron microscopy; Silicon;
Conference_Titel :
Optical Communication (ECOC), 2010 36th European Conference and Exhibition on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-8536-9
Electronic_ISBN :
978-1-4244-8534-5
DOI :
10.1109/ECOC.2010.5621410
