Schematic illustration of the underlying principles for different on-chip integrated spectrometers. (IMAGE)
Caption
Schematics of WdM spectrometers based on (a) dispersive structure, (b) arrayed or tunable narrowband filters, and WM spectrometers based on (c) Fourier-transform spectrometers formed by tunable Mach-Zehnder interferometers, and (d) broadband filter or detector arrays with distinctive spectral responses for computational spectrum reconstruction, respectively.
Credit
by Ang Li, Chunhui Yao, Junfei Xia, Huijie Wang, Qixiang Cheng, Richard Penty, Yeshaiahu Fainman, and Shilong Pan
Usage Restrictions
Credit must be given to the creator.
License
CC BY