We generalize the coupled-mode theory by treating the forward- and backward-propagating modes on the same footing via a generalized eigenvalue problem that is exactly equivalent to the waveguide Hamiltonian. The generalized eigenvalue problem is fully characterized by two operators, i.e., ((L) ...
We assert that this characteristic is derived from the acoustic characteristics of the basic components of the structure. Using temporal coupled mode theory [55], the 3-port non-reciprocal unit's scattering is represented by the scattering matrix S S, given by ...
R. Nonlinear magnetoelectric metamaterials: Analysis and homogenization via a microscopic coupled-mode theory. Phys. Rev. A 86, 033816 (2012). 34. Rose, A., Huang, D. & Smith, D. R. Nonlinear interference and unidirectionalwave mixing in metamaterials. Phys. Rev. Lett. 110, 063901 (2013)...
Unlike many works, we explicitly analyze the protocol used to measure the parametric dependence of\(\tilde H\). A general strategy is to couple mode 1 to an input–output waveguide or transmission line, and then use this port to drive this system with a coherent tone at a frequency\(\ome...
D. Temporal coupled-mode theory for the Fano resonance in optical resonators. J. Opt. Soc. Am. A 20, 569–572 (2003). Article ADS Google Scholar Fischer, K. A. et al. On-chip architecture for self-homodyned nonclassical light. Phys. Rev. Appl. 7, 044002 (2017). Article ADS ...
coupled circuitsmatrix algebrawaveguide couplerswaveguide theorywaveguidesmodal coupling strengthnonreciprocal waveguide gratingpower splitting ratiospurious noncoupling modespurious output blocked modeA non-reciprocal waveguide grating is one in which the modal coupling strength is not equal ...
The waveguide patterns are transferred to a SiO2 hard mask via reactive ion etching using CF4 and a-Si:H waveguides are formed using SF6. A 750-nm-thick SiO2 layer is deposited on the top of the waveguide core to isolate the guided mode from the integrated thin-film magnet to avoid ...
We harness such non-reciprocal topological solitons by constructing an active waveguide capable of transmitting and filtering unidirectional information. Finally, we illustrate this mechanism in another class of metamaterials that shows the breaking of ‘supersymmetry’23,24 causing only antisolitons to be...
Integrated optical isolator based on efficient nonreciprocal radiation mode conversion. Appl. Phys. Lett. 73, 1946–1948 (1998). Article ADS Google Scholar Fujita, J., Levy, M., Osgood, R. M. Jr, Wilkens, L. & Dötsch, H. Waveguide optical isolator based on Mach–Zehnder interferometer...
The conditions for maximum isolation in a circulator may be derived from temporal coupled mode theory as, f1=f2κ1/√{square root over (3)},Qκ1=1, (4) where f1is the modulation frequency, f2the carrier frequency, Q is the quality factor of the resonator, and κ1is the couplin...