Title :
Improve Channel Uniformity of an Si-Nanowire AWG Demultiplexer by Using Dual-Tapered Auxiliary Waveguides
Author :
Sheng, Zhen ; Dai, Daoxin ; He, Sailing
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
Dual-tapered auxiliary waveguides at the exit of the waveguide array are introduced to improve the channel uniformity of an Si-nanowire-based arrayed waveguide grating (AWG) demultiplexer. By using a hybrid simulation method, the dual-tapered auxiliary waveguides of the AWG demultiplexer are optimized reliably and efficiently. A 12-channel AWG demultiplexer is designed as an example, and a small nonuniformity (< 0.5 dB) is achieved.
Keywords :
arrayed waveguide gratings; demultiplexing equipment; elemental semiconductors; nanowires; silicon; Si; Si-nanowire AWG demultiplexer; channel uniformity; dual-tapered auxiliary waveguides; nanowire arrayed waveguide grating demultiplexer; waveguide array; Arrayed waveguide gratings; Electromagnetic waveguides; Helium; Insertion loss; Optical receivers; Optical waveguides; Optimization methods; Photonic integrated circuits; Silicon compounds; Waveguide components; Arrayed waveguide grating (AWG); auxiliary waveguide; dual-tapered; nanowire; nonuniformity; silicon;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.905222
