'Non-reciprocal integrable optical component, optical isolator, optical circulator and integrated circuit'

摘要

“Integrable non-reciprocal optical component, optical isolator, optical circulator and integrated circuit” The invention relates to an integrable non-reciprocal optical component, in particular optical isolator or circulator, with guidance in particular sub-wavelength between two magneto interfaces. plasmonics each formed between a dielectric and a metal. From an optical port (P1), an input signal (OS0) travels through a selection region (R1) providing a selected signal (OS1) whose energy is concentrated in a single plasmonic, LRSPP or SRSPP mode, in particular by a selection opening (R11) of a width (We) for which these modes have optical impedances that are significantly different from each other, one of which (z1eff) is close to or equal to the optical input impedance (z0eff) . The selected signal (OS1) crosses a differentiation region (R2), which creates or increases the asymmetry existing between the two magneto-plasmonic interfaces, to concentrate its energy on a single magneto-plasmonic interface (21). The differentiated signal (OS2) passes through a non-reciprocal processing region (R3) formed by two magneto-plasmonic interfaces (31,32) of non-equivalent geometries, in particular absorption cavities (311) on one side only or a deviation each to a different optical output port (P2, P3). The input signal (OS0) will thus undergo a different treatment from an inverse signal (OS0B). Figure for the abstract: Fig. 1