Commissariat a L'energie Atomique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Laurent Fulbert

Engin Molva

Bernard Ferrand

Marc Rabarot

Philippe Gilet

Sylvie Menezo

Alexei Tchelnokov

Philippe Thony

Haykel Ben Jamaa

Bernard Chambaz

Jean Marty

Gilles Poupon

An integrated circuit comprises a heat sink devoid of electronic components and interposed between a back side of a bottom electronic chip and an upper exterior side of an encapsulation, the sink comprising a front side placed on the back side of the bottom electronic chip. The back side of the bottom electronic chip comprises pads and the front side of the sink comprises pads mechanically fastened to facing pads of the back side of the bottom electronic chip.

Stacked chips attached to heat sink having bonding pads

Laser device with coupled laser source and waveguide

This invention relates to a laser cavity with passive triggering by saturable absorbent and with controlled polarization, and to a laser and in particular to a microlaser containing the said cavity and means of pumping this cavity. The invention also relates to a process for manufacturing the said microlaser. The laser cavity with controlled polarization comprises a substrate made of YAlO(YAG) active laser material that may or may not be doped, on which a monocrystalline layer of saturable absorbent doped YAG material is deposited directly by liquid phase epitaxy or by a similar process, in which the said active laser material has a [100] orientation, and in which the said monocrystalline layer of saturable absorbent material is deposited with the same [100] orientation.

Passive Q-switched microlaser with controlled polarization

The invention relates to an active laser material having a base material doped with active ions, giving said base material laser properties, the ion concentration being equal to or higher than 2%. The invention also relates to a microlaser produced with such a material, as well as a process for producing such a material. The microlaser incorporates an active medium (6) produced by epitaxial growth on a substrate (8), the latter then being removable, as well as microlaser cavity mirrors (2, 4). A pumping beam (10) makes it possible to optically pump the cavity.

Laser materials and microlasers having high active ion concentrations,

This invention relates to a procedure for assembling two structures (2, 4) comprising:

Assembly procedure for two structures and apparatus produced by the

A microlaser cavity including an entry mirror, an exit mirror (36), an active laser medium. Also included is a mechanism for selecting cavity transverse modes when the cavity is pumped, in order to enable oscillation of one or several cavity transverse modes and to prevent oscillation of other cavity transverse modes.

Microlaser cavity and microlaser with mode selection and manufacturing

A microlaser cavity to a microlaser incorporating an active solid medium (38) and means (44) for switching the cavity, whilst also having, within said cavity, at least one element (46) of an optically nonlinear material, making it possible to multiply the basic frequency of the laser cavity by a factor n (n.gtoreq.2).

Switched monolithic microlaser and intracavity nonlinear material

The invention relates to an optical parametric oscillator characterized in that it comprises an OPO nonlinear material (18) and two mirrors (24, 26) on either side of said nonlinear material and forming an OPO cavity and a switched microlaser (2, 6, 8, 26) for generating an OPO cavity laser pumping beam.

Growing community of inventors

Voiron, France

Laurent Fulbert