Patents
Patents for H01S 3 - Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves (57,482)
03/2004
03/11/2004US20040047028 Method for determining locations and gain settings of amplifiers in an optical network
03/11/2004US20040047026 Method for determining location and gain settings of amplifiers in an optical network by using a genetic algorithm
03/11/2004US20040046898 Television tuner having level of harmonics of oscillation signal suppressed low
03/11/2004DE10241192A1 Optically pumped radiation-emitting semiconductor device comprises a semiconductor body having a pump radiation source and a surface-emitted quantum well structure, and a recess for coupling the pump radiation in the quantum well structure
03/11/2004DE10239304A1 Verfahren zur Ermittlung des Gewinnspektrums eines Raman-Verstärkers in einem WDM-Übertragungssystem Procedure for the determination of the gain spectrum of a Raman amplifier in a WDM transmission system
03/10/2004EP1396951A2 Raman amplifier
03/10/2004EP1395793A1 Electrode design to extend sputter life of a ring laser gyroscope
03/10/2004EP1395523A1 Optical waveguide article including a fluorine-containing zone
03/10/2004EP1002242A4 Stepper or scanner having two energy monitors for a laser
03/10/2004CN2606477Y Apparatus for making optical liquid-phase non-circular symmetric cavity resonator
03/10/2004CN2606368Y Laser machining apparatus for trimming quartz crystal
03/10/2004CN1481290A Laser machining of semiconductor materials
03/10/2004CN1481289A 光照射装置与光照射方法 The light irradiation device and light irradiation method
03/10/2004CN1481102A Direct light amplifier
03/10/2004CN1481054A Semiconductor laser device and its mfg. method
03/10/2004CN1480782A Raman light enlarger
03/10/2004CN1141764C Gain controlled optical fibre amplifier
03/09/2004US6704519 Optical transmission system with reduced Kerr effect nonlinearities
03/09/2004US6704486 Optical fiber and optical signal transmission system using this optical fiber
03/09/2004US6704479 Method for coupling light into cladding-pumped fiber sources using an embedded mirror
03/09/2004US6704341 Diode-pumped laser with improved pumping system
03/09/2004US6704340 Lithography laser system with in-place alignment tool
03/09/2004US6704339 Lithography laser with beam delivery and beam pointing control
03/09/2004US6704335 Light-emitting device
03/09/2004US6704333 Large area laser
03/09/2004US6704332 Tunable external cavity laser
03/09/2004US6704139 Optical systems and methods and optical amplifiers for use therein
03/09/2004US6704137 Optical amplifier, method for optical amplification and optical transmission system
03/09/2004US6704136 Pumping source having a plurality of regulated pump lasers for broadband optical amplification of WDM signal
03/09/2004US6704135 Operation mode switching apparatus, Raman amplifier and optical transmission system
03/09/2004US6704134 Optical amplifier, optical amplifying repeater and transmission apparatus of wavelength division multiplexed signal light using the same
03/09/2004US6704111 High temperature electrode seal in a ring laser gyro
03/09/2004US6703582 Energy-efficient method and system for processing target material using an amplified, wavelength-shifted pulse train
03/09/2004CA2198715C Gas replenishment method and apparatus for excimer lasers
03/09/2004CA2083478C Method for forming microilluminants
03/04/2004WO2004019461A1 Multi-stage raman amplifier
03/04/2004WO2004019460A1 Wavelength selectable device
03/04/2004WO2004019458A2 Sharing pump energy among different fiber pairs
03/04/2004WO2003076979A9 Split-band depressed-profile amplifier and system
03/04/2004WO2003067721A3 Solid-state diode pumped laser employing oscillator-amplifier
03/04/2004WO2003057644A8 Improved emission silicate waveguide compositions for enhanced l-band and s-band emission and method for its manufacture
03/04/2004WO2003043144A3 Diode-pumped solid-state thin slab laser
03/04/2004WO2003021728A3 Very narrow band, two chamber, high rep rate gas discharge laser system
03/04/2004WO2003019739B1 Suppression of mode-beating noise in a q-switched pulsed laser using novel q-switch device
03/04/2004US20040042794 Optical source generator for wavelength division multiplexing optical communication systems
03/04/2004US20040042759 Amplifying optical fiber and method for fabricating the same
03/04/2004US20040042524 Thin disk laser with large numerical aperture pumping
03/04/2004US20040042522 Method and apparatus for polarization and wavelength insensitive pumping of solid state lasers
03/04/2004US20040042521 Two stage laser system
03/04/2004US20040042518 Single mode VCSEL
03/04/2004US20040042516 DFB semiconductor laser device having ununiform arrangement of a diffraction grating
03/04/2004US20040042515 Laser system utilizing highly doped laser glass
03/04/2004US20040042514 Laser diode driver with extinction ratio control
03/04/2004US20040042513 High-flux entangled photon generation via parametric processes in a laser cavity
03/04/2004US20040042512 Method and apparatus for production of entangled states of photons
03/04/2004US20040042511 Broadband optical spectrum generating apparatus and pulsed light generating apparatus
03/04/2004US20040042068 Apparatus and method for Raman gain spectral control
03/04/2004US20040042066 Optical amplification method and device usable with bands other than the C-band
03/04/2004US20040042065 Optical amplifier gain control method for optical amplifier and gain control circuit for optical amplifier
03/04/2004US20040042064 Pump assembly employing coupled radiation sources for multiple fibers
03/04/2004US20040042063 Optical transmission system
03/04/2004US20040042062 Optical amplifier, method for compensating for temperature dependency of gain flatness of an optical amplifier and optical transmission path including optical amplifier
03/04/2004US20040042061 Controlling ASE in optical amplification stages implementing time modulated pump signals
03/04/2004US20040040941 Methods and apparatus for removing gases from enclosures
03/04/2004US20040040648 Method for replicating optical elements, particularly on a wafer level, and replicas formed thereby
03/04/2004DE20317796U1 Module for sync energising of several lasers consists of one or more controllers, memory blocks, system logic blocks, synchronisation logic blocks and multi function logic blocks, enabling generation of programmable, delayed signals sync
03/04/2004DE19704545B4 Vorrichtung und Verfahren zur Auswertung eines optischen Verstärkers Apparatus and method for evaluating an optical amplifier
03/04/2004DE10338253A1 Optisches Übertragungssystem The optical transmission system
03/04/2004DE10240949A1 Semiconducting laser device has at least one external reflection arrangement with concave reflective surface that can reflect at least some laser light back to influence laser light mode spectrum
03/04/2004CA2496310A1 Method and apparatus for sharing pump energy from a single pump arrangement to optical fibers located in different fiber pairs
03/04/2004CA2492810A1 Multi-stage raman amplifier
03/03/2004EP1394970A2 Optical amplifier, gain control method and circuit for an optical amplifier
03/03/2004EP1394910A1 Raman-active optical fiber
03/03/2004EP1394909A2 Amplifying optical fiber and method for fabricating the same
03/03/2004EP1394599A1 Wavelength converter
03/03/2004EP1394590A1 Method for growing a calcium fluoride crystal
03/03/2004EP1394571A2 Plastic optical fiber and method for producing the same
03/03/2004EP1393911A1 Method of forming nozzles
03/03/2004EP1393475A1 Method and system for transmitting information in an optical communication system using distributed amplification
03/03/2004EP1393419A1 Tuneable vertical cavity laser amplifier
03/03/2004EP1393110A1 Method of winding optical fibre
03/03/2004EP1393106A1 Optical fiber fusion splice having a controlled mode field diameter expansion match
03/03/2004EP1393105A1 High index-contrast fiber waveguides and applications
03/03/2004EP1393017A1 Solid state laser gyrometer comprising a resonator block
03/03/2004EP1230578A4 Compact fiber pigtailed terahertz modules
03/03/2004EP1226098B1 Method for assembling reinforcing elements by bonding and device obtained by said method
03/03/2004EP1187698B1 Beam shaping and projection imaging with solid state uv gaussian beam to form vias
03/03/2004CN2605682Y Acousto-optic Q-switch
03/03/2004CN1140947C Multi-wavelength laser
03/03/2004CN1140946C Method for building axial-flow Co laser and its device
03/03/2004CN1140945C Non-resonance cavity light parameter oscillator
03/03/2004CN1140944C Optical resonance cavity with time-space-position modulation in it
03/03/2004CN1140943C Regulation-free clad pumped fiber laser and its manufacturing method
03/02/2004US6701044 Solid state laser generating UV radiation for writing fiber bragg gratings
03/02/2004US6700916 E-diagnostic, laser simulator, automated testing and deconvolution of spectra for lithographic exposure radiation generating systems such as excimer or molecular fluorine laser or EUV source systems
03/02/2004US6700915 Narrow band excimer laser with a resonator containing an optical element for making wavefront corrections
03/02/2004US6700913 Low cost high integrity diode laser array
03/02/2004US6700908 Device for avoiding sliding discharges in pre-ionization in a gas laser with corona discharge
03/02/2004US6700906 High energy, high average power solid state green or UV laser
03/02/2004US6700905 Ultrawide-band light pulse generation