We report dispersion resulting from phase and amplitude errors in arrayed-waveguide grating (AWG) multiplexers–demultiplexers. We measure the phase- and amplitude-error distributions of two different types of AWG and discuss their effects on the dispersion. The results show that the origin of the dispersion in the AWG is the low-order Fourier components of the symmetric phase and the antisymmetric amplitude errors. We also discuss the dependence of the dispersion on the passband shape in the presence of the same fabrication errors.
© 2000 Optical Society of America
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.3120) Integrated optics : Integrated optics devices
(230.7390) Optical devices : Waveguides, planar
Hiroaki Yamada, Katsunari Okamoto, Akimasa Kaneko, and Akio Sugita, "Dispersion resulting from phase and amplitude errors in arrayed-waveguide grating multiplexers–demultiplexers," Opt. Lett. 25, 569-571 (2000)