Ravi Pant

TL;DR: In this paper, a chip-based MWP bandstop filter with ultrahigh suppression, high resolution in the megahertz range, and 0-30 GHz frequency tuning is presented. But the performance is limited by trade-offs between key parameters such as tuning range, resolution, and suppression.

TL;DR: The first demonstration of on-chip stimulated Brillouin scattering (SBS) is reported and the measured BrillouIn shift and line width are ∼7.7 GHz and 6 MHz in a 7 cm long chalcogenide waveguide.

TL;DR: In this article, the authors review recent progress in inducing and harnessing stimulated Brillouin scattering (SBS) in integrated photonic circuits, with special attention paid to photonic integration of applications such as narrow-linewidth lasers, slow-and fast-light, microwave signal processing, and non-reciprocal devices.

TL;DR: The enhanced opto-acoustic coupling allows significant isolation within a chip-scale (cm-long) device and the bandwidth of this device can be dramatically increased by tuning the dispersion of the waveguide to match the group velocity between optical modes.

TL;DR: The first demonstration of a photonic chip based dynamically reconfigurable, widely tunable, narrow pass-band, high Q microwave photonic filter (MPF) is reported, representing a significant advance in integrated microwave photonics with potential applications in on-chip microwave signal processing for RADAR and analogue communications.