Title :
A more tolerant design of 3-dB adiabatic couplers
Author :
Ramadan, Tarek A.
Author_Institution :
Electron. & Electr. Commun. Eng. Dept., Ain Shams Univ., Cairo, Egypt
Abstract :
A more tolerant design of 3-dB adiabatic couplers is proposed. In this design a central region is added to the structure of the conventional cross-coupler. The waveguides of the central region are linearly tapered in both width and separation. Numerical computations of the proposed design show the possibility of five-fold increase in the fabrication tolerance compared to the conventional design.
Keywords :
optical couplers; adiabatic coupler; tolerant design; Couplers; Degradation; Design engineering; Geometrical optics; Interference; Optical device fabrication; Optical waveguides; Polarization; Power conversion; Waveguide transitions;
Conference_Titel :
Radio Science Conference, 2004. NRSC 2004. Proceedings of the Twenty-First National
Print_ISBN :
977-5031-77-X
DOI :
10.1109/NRSC.2004.1321854
