摘要:
The invention relates to an electro-optic modulator (10) for modulating optical radiation of a prespecified wavelength, wherein the electro-optic modulator (10) has at least one optical resonator (20), in which for the prespecified wavelength a standing optical wave can form. According to the invention, provision is made for at least two doped semiconductor sections (33, 34) to be arranged in the resonator such that - when viewed in the longitudinal direction of the resonator - they are spaced apart from one another, and for the at least two doped semiconductor sections to be located in each case locally in an intensity minimum of the standing optical wave.
摘要:
A diode comprising a light-sensitive germanium region, which is totally embedded in silicon and forms with the silicon a lower interface and lateral interfaces, wherein the lateral interfaces do not run perpendicularly, but rather obliquely with respect to the lower interface and therefore produce a facet form.
摘要:
The invention relates, inter alia, to a photonically integrated chip (2) having a substrate (20), a plurality of material layers arranged on a top side (21) of the substrate (20), an optical waveguide which is integrated in one or more wave-guiding material layers of the chip (2), and a grating coupler (60) which is formed in the optical waveguide and effects beam deflection of radiation guided in the waveguide in the direction out of the layer plane of the wave-guiding material layer(s) or effects beam deflection of radiation to be coupled into the waveguide in the direction into the layer plane of the wave-guiding material layer(s). With respect to the chip, the invention provides for an optical diffraction and refraction structure (100, 100a) which carries out beam forming of the radiation before being coupled into the waveguide or after being coupled out of the waveguide to be integrated in a material layer of the chip (2) above or below the optical grating coupler (60) or in a plurality of material layers above or below the optical grating coupler (60) or on the rear side of the substrate (20).