Forward Inter-Optical-Modal Interactions with Fundamental Acoustic Modes (FIM-FAM) and versatile high-selectivity RF Photonic devices
Abstract
Forward Inter-Optical-Modal Interactions with Fundamental Acoustic Modes(FIM-FAM) and versatile high-selectivity RF Photonic devicesAbstractThe objective of this research is to develop a novel acoustic-optical process that expands access to frequencies, linewidths, and interaction strengths of optomechanical interactions by more than two orders of magnitude. Optomechanical (i.e. acousto-optical) interactions, known as Brillouin scattering, have enabled powerful new approaches to RF-processing including filtering and delaylines. However, established Brillouin interactions are constrained in performance by fundamental material properties. Optomechanical waveguides, on the other hand, can be engineered to completely remove the strict performance limits associated with traditional interactions, by coupling between the first two optical modes (Forward InterModal-FIM) and the Fundamental Acoustic Mode (FAM), with FIM-FAM interactions. Initial devices developed by the PI validate this approach with record coupling strengths and ultranarrow linewidths. The technical approach for the proposed research program has three thrusts aimed at exploring the physics of FIM-FAM interactions. In the first thrust, on-chip devices will be designed in multiple on-chip platforms for robust and scalable interactions. In the second thrust precise control of these integrated device designs will enable the proposed effort to establish the limits of frequency-dependent dissipation and investigate novel power dependent and dispersion engineered dissipation. In the third thrust, developed devices will be applied toward versatile high-selectivity RF Photonic devices.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 21, 2023
- Source ID
- N000142412012
Entities
People
- William Renninger
Organizations
- Office of Naval Research
- United States Navy
- University of Rochester