Abstract: A photonic device for providing light radiation comprises a wave guide, an N-type semiconductor layer covering the wave guide and an active region formed by a stack of layers made of III-V materials. The photonic device also comprises a plurality of P-type semiconductor pillars arranged on and in contact with the active region. At least a first metal pad is in ohmic contact with the free portion of the N-type layer and at least a second metal pad is in ohmic contact with the P-type pillars.

Abstract: The invention relates to a method for the spectral positioning of a photonic system, the photonic system carrying out the steps of conditioning a control signal (V) in order to produce a digital control signal, carrying out a first step (OP1) of processing the digital control signal in order to produce at least one digital signal, which digital signal is referred to as the “first locking signal”, representative of the power of a second harmonic or the main component of the modulation frequency (Fd) present in the digital control signal, carrying out a second step (OP2) of processing the first locking signal (Vr1) in order to produce a digital adjustment command, the second step (OP2) being intended to optimize the amplitude of the first locking signal, (Vr1) and conditioning the digital adjustment command in order to produce the adjustment command (CLa) and apply the adjustment command to the adjustment device (H1).

Abstract: The invention relates to a photonic system provided with a photonic chip made in silicon technology, said photonic chip (10) comprising:—a Mach-Zehnder modulator (100) the modulation sections (105, 106) of which extend over a length L smaller than 3 mm;—first means (107) for adjusting operating point;—a semiconductor optical amplifier (SOA) configured to amplify a signal modulated by the Mach-Zehnder modulator, the semiconductor optical amplifier (SOA) being such that the amplitude of optical modulation associated with the photonic chip, when the set phase shift F is adjusted to the range 0.6*pi-0.9*pi, is of between ?2 dBm and 6 dBm, at an output port S placed downstream of the semiconductor optical amplifier (SOA).

Abstract: A photonic device comprises: —a support layer, —an optical layer extending in a main plane (x, y), subdivided into at least a first region and a second region adjacent in the main plane (x, y), and comprising a first optical waveguide in the first region and a second optical waveguide in the second region, —a stack of III-V semiconductor compounds, arranged on a dielectric layer, in the first region, —an intermediate layer, between the optical layer and the support layer, comprising a thermally conductive material forming a single-piece block, arranged in line with the first region and an optical and/or electrical cladding material arranged in line with the second region. A method is employed for manufacturing such a device.

Abstract: The invention relates to a photonic system comprising a laser source capable of emitting at least one multispectral light radiation. The photonic system comprises a photonic component having a plurality of tunable optical filters respectively having a plurality of resonant frequencies. The photonic system also comprises a photodetector arranged downstream of the component to establish a signal representative of the multispectral radiation, a modulator associated with the bank of tunable lasers. The laser source also comprises a locking device configured to process the signal representative of the multispectral radiation and to adjust the resonant frequency of a tunable optical filter of the photonic component to the emission frequency of the light radiation of a laser of the bank.

Abstract: The invention relates to a laser source for emitting multispectral light emission having a plurality of spectral lines separated by a determined spectral interval. The laser source comprises a bank of tunable lasers, an optical filter having a plurality of resonant frequencies, a photodetector arranged downstream of the optical filter in order to establish a signal representative of the multispectral radiation, a modulator associated with the bank of tunable lasers, the modulator being capable of modulating by a modulation frequency the emission frequency of the light emission emitted by at least one tunable laser of the bank. The laser source also comprises a locking device of at least one tunable laser configured to process the signal representative of the multispectral radiation and to adjust the emission frequency to a resonant frequency of the filter.

Abstract: A photonic assembly comprises: a photonic device comprising an output guide and an input guide cooperating with, respectively, a first output and a first input; a photonic element having a second output and a second input optically coupled to the first input and the first output; an optical isolator interposed in a first path between the first output and the second input, and imposing a first size on radiation propagating along the first path; and adjustment means interposed in a second path between the first input and the second output, the adjustment means being configured to impose on radiation propagating along the second path a second size equal to the first size.