Figure 11.
Fully integrated and reconfigurable microwave or optical signal processor
(A) The proposed architecture incorporating tunable bandpass filtering or non-volatile computing, microwave photonics signal processing, linear isolators and some active on-chip components such as lasers, EO-modulator, arrayed waveguide grating (AWG), true time delay (TTD) unit, Erbium doped amplifiers, and photodetectors, Adapted from.163
(B) Silicon PIN diode heaters, Adapted from.116
(C) Graphene microheater, Adapted from,117,118 licensed under a Creative Commons Attribution (CC BY) license.
(D) Chalcogenide PCM coated waveguide, Adapted from.142
(E) Nonlinear SBS waveguide, Adapted from.161
(F) Vertical taper technology for off-chip coupling, Adapted from.162 Figures and insets adapted from the ref. 116,117,118,142,161,162,163.