16 citations · 50 across the 6 of their papers we have counts for
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Wavelength flattened directional couplers: a geometrical approach
Matteo Cherchi
A new approach to design wavelength insensitive optical power splitter is presented. First coupled-mode theory is cast in operatorial form. This allows to solve the equivalent of c…
Exact analytic expressions for electromagnetic propagation and optical nonlinear generation in finite one-dimensional periodic multilayers
Matteo Cherchi
Translation Matrix Formalism has been used to find an exact analytic solution for linear light propagation in a finite one-dimensional (1D) periodic stratified structure. This moda…
Wavelength flattened directional couplers for mirrorsymmetric interferometers
Maurizio Tormen, Matteo Cherchi
In the context of guided optics, we derive, analytically and geometrically, a rigorous general criterion to design wavelength insensitive interferometers with mirror symmetry, whic…
Bloch Analysis of Finite Periodic Microring Chains
Matteo Cherchi
We apply Bloch analysis to the study of finite periodic cascading of microring resonators. Diagonalization of the standard transfer matrix approach not only allows to find an exact…
Design Scheme for Mach-Zehnder Interferometric CWDM Wavelength Splitters/Combiners
Matteo Cherchi
We propose an analytical approach to design flattened wavelength splitters with cascaded Mach-Zehnder interferometers when wavelength dependence of the directional couplers cannot…
Second harmonic generation in surface periodically-poled lithium niobate waveguides: on the role of multiphoton absorption
M. Cherchi, S. Stivala, A. Pasquazi +5
Second harmonic generation is investigated in lithium niobate channels realized by proton exchange and quasi-phase-matched by surface periodic-poling. The reduction in conversion e…