Title :
Compact integrated optical devices using high index contrast waveguides
Author :
Das, A.K. ; Sahu, P.P.
Author_Institution :
Dept. of ETCE, Jadavpur Univ., Calcutta
Abstract :
In this paper, we have demonstrated two mode interference (TMI) coupler using the material SiO2/SiON having index contrast (Deltan) of 2% and 5% and the corresponding compact beat lengths are observed as ~103 mum and ~50 mum, respectively. The reduction of the beat length with Deltan and the corresponding width of the coupling zone are analyzed and compared with the experimental results. We also analyzed the coupling coefficients for the TMI couplers and the directional couplers (DC) and observed that the coupling coefficient of a DC with small gap (les 0.02 mum) is same to that of a TMI coupler. We have demonstrated a DC with small gap (<1 mum) and Deltan of 2% and the corresponding beat length is ~207 mum. The wavelength multiplexing/demultiplexing using the TMI couplers is also discussed
Keywords :
demultiplexing; integrated optics; multiplexing; optical communication equipment; optical directional couplers; optical waveguides; silicon compounds; SiO2-SiON; compact beat lengths; compact integrated optical devices; coupling coefficients; coupling zone width; directional couplers; high index contrast waveguides; two mode interference coupler; wavelength multiplexing-demultiplexing; Demultiplexing; Directional couplers; Integrated optics; Interference; Optical coupling; Optical devices; Optical waveguides; Polarization; WDM networks; Waveguide discontinuities; Compact Size; Integrated optics; Two mode interference(TMI) coupler; multiplexer/demultiplexer;
Conference_Titel :
Wireless and Optical Communications Networks, 2006 IFIP International Conference on
Conference_Location :
Bangalore
Print_ISBN :
1-4244-0340-5
DOI :
10.1109/WOCN.2006.1666673
