Abstract
We reported on design considerations for arrayed waveguide grating (AWG) using Si wire waveguide [1] to realize 100GHz-class channel spacing with improved loss characteristics. The rib waveguide structure with terrace is often used to reduce the excess loss generated at slab to arrayed waveguide junctions [2, 3]. In a previous report, we proposed a very simple structure for this purpose using minimum terrace area [2]. In this report we demonstrate the experimental results.
© 2016 Japan Society of Applied Physics, Optical Society of America
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