Title :
Theoretical investigation on the influence of phase errors in AWG
Author :
Chu, Yuanliang ; Zhang, Hanyi ; Zheng, Xiaoping ; Liu, Xueming ; Guo, Yili
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The optical path deviation, also quoted as phase error, is a key element determining the crosstalk and insertion loss performance in arrayed waveguide gratings (AWG). This paper presents a theoretical analysis of the character of phase errors in AWG. We have developed a statistical model to estimate the influence of phase errors in silica-based AWG by using Fourier optics and scalar diffraction theory. Also, the filter property of AWG caused by phase errors is analyzed. To maintain the adjacent crosstalk <-25 dB. There is a standard deviation maximum σmax of phase errors to the design of AWG.
Keywords :
Fourier transform optics; arrayed waveguide gratings; multiplexing equipment; optical communication equipment; optical crosstalk; optical losses; optical waveguide filters; AWG; Fourier optics; arrayed waveguide gratings; crosstalk; filter property; insertion loss; optical communication; optical path deviation; phase error; phase errors; scalar diffraction theory; silica-based AWG; statistical model; Arrayed waveguide gratings; Insertion loss; Optical arrays; Optical crosstalk; Optical filters; Optical losses; Optical waveguide theory; Optical waveguides; Performance loss; Phased arrays;
Conference_Titel :
TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
Print_ISBN :
0-7803-7490-8
DOI :
10.1109/TENCON.2002.1180335
