Title :
Cascadability of passband-flattened arrayed waveguide-grating filters in WDM optical networks
Author :
Otani, T. ; Antoniades, N. ; Roudas, I. ; Stern, T.E.
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
The cascadability of passband-flattened arrayed waveguide-grating (AWG) filters is studied using experimental and theoretical transfer functions. The formalism is general and can be used to cascade any type of filter at any channel spacing. For example, modeling indicates that transmission through 100 such AWG (de)multiplexers at 200-GHz channel spacing, assuming 10-Gb/s data streams introduces distortion-induced penalties below the widely acceptable 0.3-dB limit, provided that certain filter design requirements are satisfied. All simulations focus on the filter cascadability and central frequency misalignment effects, and neglect nonlinearities and crosstalk.
Keywords :
diffraction gratings; optical arrays; optical communication equipment; optical fibre filters; optical fibre networks; optical transfer function; wavelength division multiplexing; 10 Gbit/s; AWG filters; WDM optical networks; cascadability; central frequency misalignment effects; distortion-induced penalties; filter design; passband-flattened arrayed waveguide-grating filters; transfer functions; Arrayed waveguide gratings; Band pass filters; Intelligent networks; Optical arrays; Optical fiber networks; Optical filters; Optical waveguides; Transfer functions; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
