Abstract:
L'invention présente un adaptateur de mode optique comportant un premier (C1 ) et un second (C2) canal sur un substrat optique (31) pour le raccordement d' un premier et d'un second guide d'onde respectivement à sa première (11) et à s a seconde (12) extrémité. Ces deux canaux étant recouverts par au moins une couche guidante (33), l'indice de réfraction du premier canal (C1) est inférieur à celui du second canal (C2). L'invention vise également une métho de de fabrication de cet adaptateur.
Abstract:
The invention relates to an optical probe for measuring absorption in order to generate an absorption value Am, said probe including an analysis cell CA, said analysis cell including an LED emission module F1, HD and a detection module H1, D1 capable of generating a detection signal. The optical probe further includes a monitoring cell CM capable of generating a monitoring signal MS. The monitoring cell is further arranged on the optical path between the emission module and the detection module.
Abstract:
The invention relates to a wavelength spectroscopy device comprising, on a substrate, a filtering cell CF consisting of two mirrors separated by a spacing membrane, this filtering cell being formed by a plurality of interference filters. In addition, this device includes an emission cell CE having a plurality of emission sources, each of these sources being associated with one of the interference filters.
Abstract:
The invention relates to a system for homogenising a laser pulse emitted by a laser source in order to illuminate a target homogeneously. According to the invention, the following elements are disposed between the laser source and the target, namely: a phase plate formed by a plurality of subpupils capable of generating a plurality of delayed laser beams in the direction of the target, the path difference Δd between two adjacent delayed laser beams being greater than the temporal coherence Tc of the laser pulse; and focusing means for superimposing said delayed laser beams on the target in a homogeneous spot.
Abstract:
The invention relates to a wavelength spectroscopy device that comprises, on a substrate SUB, a filtering module comprising two mirrors MIR1, MIR2 separated by a spacing membrane SP. The filtering module includes a plurality of interference filters FP1, FP2, FP3, the thickness of the spacing membrane SP being constant for a given filter and varying from one filter to the other.