Title :
The impact of phase errors on arrayed waveguide gratings
Author :
Chu, Yuanliang ; Zheng, Xiaoping ; Zhang, Hanyi ; Liu, Xueming ; Guo, Yili
Author_Institution :
Electron. Eng. Dept., Tsinghua Univ., Beijing, China
Abstract :
The impact of phase errors on arrayed waveguide gratings (AWGs) due to waveguide length deviation in AWGs has been analyzed theoretically. A statistical model to estimate the influence of phase errors in silica-based arrayed waveguide multiplexers was developed, using Fourier optics and scalar diffraction theory. In addition, the insertion loss and crosstalk of AWGs caused by phase errors were analyzed. To maintain the adjacent crosstalk at less than -25 dB, a maximum standard deviation σmax of phase errors to the design of AWGs is obtained.
Keywords :
Fourier transform optics; arrayed waveguide gratings; errors; light diffraction; optical communication equipment; optical crosstalk; optical design techniques; optical losses; statistical analysis; wavelength division multiplexing; Fourier optics; adjacent crosstalk; arrayed waveguide grating design; arrayed waveguide gratings; crosstalk; insertion loss; maximum standard deviation; phase errors; scalar diffraction theory; silica-based arrayed waveguide multiplexers; statistical model; waveguide length deviation; Arrayed waveguide gratings; Multiplexing; Optical arrays; Optical crosstalk; Optical diffraction; Optical losses; Optical waveguide theory; Optical waveguides; Phase estimation; Phased arrays;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2002.805974
