On-Chip Spectrometer using Cascaded Echelle Gratings and Arrayed Waveguide Gratings
2019
A novel, compact, on-chip spectrometer based on cascaded EG, multiple AWGs as well as PIC foundry compatible components was designed and analyzed. The proposed device operates in the spectral range of 1050 nm −1250 nm, 0.5 nm resolution, −30dB cross talk and 400 output channels.
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