We present a comparative optomechanical analysis of a tunable, monolithic Littrow wavelength-division multiplexer (WDM) integrating silicon nitride waveguides with an enhanced concave diffraction grating. Three device configurations, distinguished by their mechanical boundary conditions and actuation locations, are investigated using coupled finite-element mechanical modeling and fullwave electro…
Abstract: He will present a general result concerning flexural wave propagation in periodic layered beams (waveguides), valid for any number of layers in the unit cell, no matter either the material properties or the cross-section geometry. Beginning with propagation of longitudinal waves in 1D layered media, the connection between spectral analysis of transfer matrices and […]
