Flexible Chromatic Dispersion Compensation Over Entire $L$-Band for Over 40-Gb/s WDM Transparent Networks Using Multichannel Tunable Optical Dispersion Compensator

We describe the proof-of-concept demonstration of flexible chromatic dispersion compensation over the entire
L
-band region wavelength-division-multiplexing transparent networks operating at over 40 Gb/s using span-by-span compensation with an arrayed-waveguide grating and an liquid crystal on silicon-based multichannel tunable dispersion compensator.