Abstract:
The invention relates to an optical probe for measuring absorption in order to produce an absorption value Am, which probe comprises an analysis cell CA, said analysis cell including an emission module LED, F1, HD and a detection module H1, D1 suitable for producing a detection signal DS, the probe also including a monitoring cell CM suitable for producing a monitoring signal MS. The monitoring cell is arranged on the light path connecting the emission module to the detection module.
Abstract:
The invention relates to a wavelength spectroscopy device comprising, on a substrate a filter cell CF constituted by two mirrors separated by a spacer membrane, the filter cell being made up of a plurality of interference filters. Furthermore, the device also comprises an emission cell CE comprising a plurality of emission sources, each of said sources being associated with one of said interference filters.
Abstract:
The invention relates to a wavelength spectroscopy device comprising, on a substrate SUB, a filter module made up of two mirrors MIR1, MIR2 that are spaced apart by a spacer membrane SP. The filter module comprises a plurality of interference filters FP1, FP2, FP3, the thickness of said spacer membrane SP being constant for any given filter and varying from one filter to another.
Abstract:
The invention concerns an optical mode adapter comprising first (C1) and second (C2) channels on an optical substrate (31) designed for connection of first and second waveguides respectively to its first (11) and to its second (12) ends. Said two channels being covered with at least a guide layer (33), the refractive index of the first channel (C1) is lower than that of the second channel (C2). The invention also concerns a method for making said adapter.
Abstract:
The invention relates to an optical probe including: a first cell C1 including a first emitter module LED1 and a first detector module D1 suitable for producing a first detection signal; a second cell C2 including a second detector module D2 suitable for producing a first monitoring signal for monitoring the first emitter module LED1; and a control circuit for producing a first measurement signal by weighting the first detection signal by means of the first monitoring signal. Furthermore, the second cell C2 has a second emitter module LED2, the second detector module D2 is suitable for producing a second detection signal, and the first detector module D1 is suitable for producing a second monitoring signal for monitoring the second emitter module LED2.
Abstract:
The invention relates to a calibration device on a silicon substrate SU formed in addition to a reference level Nc by at least two distinct levels Ng, ND. These levels present distinct doping concentrations. The invention also provides a method of making the calibration device, the method including a definition step for defining at least two sections Sg, Sd distinct from a reference section Sc on a silicon substrate SU. This definition step consists in doping the sections different from the reference section at different concentrations.