http://www.freshpatents.com/Coherent-light-generators-dtnewntc372.php USPTO Class 372 - Coherent light generators en-us Mon, 20 May 2013 13:38:55 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/-dt20130516ptan20130121353.php Mon, 20 May 2013 13:38:55 -0700 Laser devices are presented in which a graphene saturable absorber and an optical amplifier are disposed in a resonant optical cavity with an optical or electrical pump providing energy to the optical amplifier.... http://www.freshpatents.com/-dt20130516ptan20130121354.php Mon, 20 May 2013 13:38:55 -0700 There is provided an optical interconnection system including a plurality of semiconductor integrated devices each including a surface emitting laser array device including a plurality of surface emitting laser devices each emitting an output laser signal light of a different wavelength modulated based on an input modulated signal, a silicon... http://www.freshpatents.com/-dt20130516ptan20130121355.php Mon, 20 May 2013 13:38:55 -0700 In a laser device, a control range of focal distance of a generated thermal lens is broadened and reliability is improved. A mode control waveguide-type laser device includes: a planar laser medium having a waveguide structure in a thickness direction of a cross section perpendicular to an optical axis, for... http://www.freshpatents.com/-dt20130516ptan20130121356.php Mon, 20 May 2013 13:38:55 -0700 An apparatus includes a first input transistor to include a base receiving a drive signal for an object to be driven, a first current source connected to an emitter side of the first input transistor and configured to control a modulation amplitude of a signal flowing to a collector of... http://www.freshpatents.com/-dt20130516ptan20130121357.php Mon, 20 May 2013 13:38:55 -0700 An optical disk drive system associated with a laser diode is described. The optical disk drive system comprises a current generator for receiving input signals; a current switch coupled to receive timing signals; a current driver coupled to receive output signals from the current switch and the current generator, the... http://www.freshpatents.com/-dt20130516ptan20130121358.php Mon, 20 May 2013 13:38:55 -0700 A semiconductor surface light-emitting element of this invention is provided with a photonic crystal layer 6 obtained by periodically forming a plurality of holes H in a basic layer 6A comprised of a first compound semiconductor of the zinc blende structure and growing embedded regions 6B comprised of a second... http://www.freshpatents.com/-dt20130516ptan20130121359.php Mon, 20 May 2013 13:38:55 -0700 A broadband, integrated quantum cascade laser is disclosed, comprising ridge waveguide quantum cascade lasers formed by applying standard semiconductor process techniques to a monolithic structure of alternating layers of claddings and active region layers. The resulting ridge waveguide quantum cascade lasers may be individually controlled by independent voltage potentials, resulting... http://www.freshpatents.com/-dt20130516ptan20130121360.php Mon, 20 May 2013 13:38:55 -0700 A multi-wavelength laser array of a plurality of emitters in a diode bar or stack where each beam is deflected by a different angle to be incident upon a uniform volume holographic grating with a portion of the beam being deflected as a feedback portion while a further portion provides... http://www.freshpatents.com/-dt20130516ptan20130121362.php Mon, 20 May 2013 13:38:55 -0700 Laser devices are presented in which a graphene saturable absorber and an optical amplifier are disposed in a resonant optical cavity with an optical or electrical pump providing energy to the optical amplifier.... http://www.freshpatents.com/-dt20130516ptan20130121361.php Mon, 20 May 2013 13:38:55 -0700 An interband cascade laser amplifier medium (M) having a number of cascades (C) strung together along a transport direction (T) of charge carriers and each having an electron injector region (I), an amplifier region (V) and an electron collector region (K), wherein the amplifier region (V) has a hole quantum... http://www.freshpatents.com/-dt20130516ptan20130121363.php Mon, 20 May 2013 13:38:55 -0700 A compact solid state laser that generates multiple wavelengths and multiple beams that are parallel, i.e., bore-sighted relative to each other, is disclosed. Each of the multiple laser beams can be at a different wavelength, pulse energy, pulse length, repetition rate and average power. Each of the laser beams can... http://www.freshpatents.com/-dt20130516ptan20130121364.php Mon, 20 May 2013 13:38:55 -0700 The invention relates to a laser cavity with central extraction by polarisation for coherent coupling of intense intra-cavity beams. The laser cavity (1) according to the invention comprises an extraction unit (7) with central extraction, which divides the laser cavity (1) longitudinally into two functional portions (P1, P2), namely a...