Abstract: An optical module (1) which contains at least one optical component (2) whose one optical input/output is directed towards an optical fibre (4) to which it is to be coupled. At least one additional optical waveguide (6) is arranged between this optical component (2) and the optical fibre (4). The optical component (2) is provided with an optical waveguide (3) whose end (5), facing towards the optical fibre (4), is tapered or widened for a modal field adaptation. Additionally the end of each interposed optical waveguide (6) facing towards the optical fibre (4) is also tapered or widened for a modal field adaptation.

Abstract: An optical module (1) which contains at least one optical component (2) whose one optical input/output is directed towards an optical fiber (4) to which it is to be coupled. At least one additional optical waveguide (6) is arranged between this optical component (2) and the optical fiber (4). The optical component (2) is provided with an optical waveguide (3) whose end (5), facing towards the optical fiber (4), is tapered or widened for a modal field adaptation. Additionally the end of each interposed optical waveguide (6) facing towards the optical fiber (4) is also tapered or widened for a modal field adaptation.

Abstract: An optical module (1) which contains at least one optical component (2) whose one optical input/output is directed towards an optical fibre (4) to which it is to be coupled. At least one additional optical waveguide (6) is arranged between this optical component (2) and the optical fibre (4). The optical component (2) is provided with an optical waveguide (3) whose end (5), facing towards the optical fibre (4), is tapered or widened for a modal field adaptation. Additionally the end of each interposed optical waveguide (6) facing towards the optical fibre (4) is also tapered or widened for a modal field adaptation.

Abstract: A semiconductor optical component, comprising a spot-size converter to deconfine the optical mode, comprises an active waveguide and a passive waveguide that are superimposed and buried in a sheathing layer. The component successively comprises a damped coupling section in which the width of the active waveguide tapers down and the width of the passive waveguide increases, and a mode expansion section comprising only the passive waveguide whose width tapers down.

Abstract: The invention relates to a light emitter device comprising an integrated component having a laser section provided with an oscillator section designed to supply a laser wave, and a modulator section. In order to control the light frequency of the emitted modulated wave, an electronic circuit controls the current of the laser section in response to a measurement of the amplitude of the modulation of the voltage induced across the terminals of the laser section by the modulation section.