Abstract
Fundamental operational principles and key features of AWGs will be first described. Then, current performances and future prospects of AWGs and planar lightwave circuits (PLCs) will be described. Channel numbers of AWGs have been dramatically increased up to 400 ch in single wafer. In the multi-chip configuration (tandem AWGs), 1010 ch has been achieved with 10 GHz channel spacing.
© 2002 Optical Society of America
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