Patent application number | Description | Published |
20080251704 | Optical Structure for Localising an Electromagnetic Field and Detector or Emitter Device Including Such a Structure - An optical structure enabling properties of the surface plasmons to be used is defined from a substantially binary, parameterizable unit pattern M | 10-16-2008 |
20080279233 | STRONG DISTRIBUTED FEEDBACK SEMICONDUCTOR LASER - The present invention relates to a strong distributed feedback semiconductor laser. More specifically, the invention implements a top optical waveguide ( | 11-13-2008 |
20080279244 | SINGLE-MODE DISTRIBUTED FEEDBACK SEMICONDUCTOR LASERS - The present invention relates to the field of distributed feedback semiconductor lasers. More specifically, the invention makes it possible to develop single-mode distributed feedback lasers with a production rate close to 100% using a simple and robust technology. To this end, the invention involves introducing radiative losses on just one of the two predominant modes of a DFB laser obtained by index modulation by defining a particular refractive index profile of the active area. | 11-13-2008 |
20100007945 | Optical Device Comprising a GaInP-Based Photonic Crystal not Exhibiting Two-Photon Absorption - The invention relates to an optical device operating within a wavelength range centred on a reference wavelength (λ | 01-14-2010 |
20100046572 | Photonic-Crystal-Based Photon Extractor for High-Yield Optical Microsources - The invention relates to a photon extractor comprising a photonic-crystal-based membrane having a plane defined by two perpendicular directions, comprising an array of features and a cavity devoid of features, from which photons may be extracted, characterized in that the membrane comprises at least one region close to the cavity, said region having features distributed with a double periodicity (a | 02-25-2010 |
20100072872 | OPTICALLY CONTROLLED COLD-CATHODE ELECTRON TUBE - In an optically controlled cold-cathode electron tube, the emitters | 03-25-2010 |
20100272387 | Photonic crystal circuit comprising a guided mode adapter and optical system including said circuit coupled with an optical fiber - The invention relates to a photonic crystal circuit comprising a guide produced in a photonic crystal membrane on the surface of a substrate and a mode adapter coupled to said guide, wherein the membrane includes a central point constituting the mode adapter having a section gradient as termination of said guide, said point being suspended so as to allow the propagation of modes in a symmetrical manner. | 10-28-2010 |
20130177275 | APPARATUS AND METHOD FOR GENERATING FEMTOSECOND PULSES VIA TEMPORAL SOLITON COMPRESSION IN PHOTONIC CRYSTALS - Exemplary embodiments of an apparatus, method, and computer readable medium are provided for producing a radiation. For example, a radiation having at least one pulse with a pulse-width of less than approximately 30 picoseconds can be produced using a photonic crystal waveguide arrangement which is (i) specifically structured and sized so as to be placed on an integrated circuit, and (ii) configured to produce the radiation having at least one pulse with a pulse-width of less than approximately 30 picoseconds. | 07-11-2013 |