AUTHOR=Liu Shiping , Hu Heming , Ma Xiaoyue , Dong Runyu , Fang Qing , Chen Hua 

TITLE=Low-crosstalk silicon-photonics arrayed waveguide gratings integrated with micro-ring filter

JOURNAL=Frontiers in Physics

VOLUME=10

YEAR=2022

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.1018589

DOI=10.3389/fphy.2022.1018589

ISSN=2296-424X

ABSTRACT=<p>A low-crosstalk compact arrayed waveguide grating integrated with a tunable micro-ring resonator is demonstrated on silicon-on-insulator platform, The side-lobe of the silicon nanowire AWG, introduced by fabrication errors, can be effectively suppressed by the Ring Filter, The crosstalk level of the side-lobe can be reduced from -16.3 dB to -26.8dB, in addition, the crosstalk of integrate AWG have improved over the entire 3 dB bandwidth, with a maximum crosstalk improvement of 8.9 dB at the left and right wavelengths of the 3 dB bandwidth, and the excess loss from the ring resonator can be ignorable in principle.</p>