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9042424 Silicon-based lens support structure and cooling package with passive alignment for compact heat-generating devices  
A silicon-based thermal energy transfer apparatus that aids dissipation of thermal energy from a heat-generating device, such as an edge-emitting laser diode, is provided. In one aspect, the...
9031108 Circuitry and method for driving laser with temperature compensation  
A temperature-compensated laser driving circuit for driving a laser component is provided. The temperature-compensated laser driving circuit includes: a temperature compensation circuit,...
9025626 Semiconductor laser excited solid state laser device and laser light output method  
A semiconductor laser excited solid state laser device and method. The device including a semiconductor laser; a driving device; a solid state laser module which has maximum output efficiency at...
9008147 Silicon-based lens support structure and cooling package with passive alignment for compact heat-generating devices  
A silicon-based thermal energy transfer apparatus that aids dissipation of thermal energy from a heat-generating device, such as an edge-emitting laser diode, is provided. In one aspect, the...
8976825 Heat sink mount for laser diode  
A heat sink mount for a laser diode comprises three main components, a diode ring, a diode bed and a diode container. The diode ring comprises an inner hole that matches a metal stem part of the...
8958447 System and method for lasers in surgical applications  
Disclosed is a surgical laser system. The system includes a laser generator to generate laser radiation to cause water absorption levels that approximate water absorption levels achieved with a...
8891567 Heat sink for a pulsed high-power laser diode  
A semiconductor laser module having a substrate and having at least one semiconductor laser situated on the substrate, the substrate having a layer structure which includes at least one primary...
8885679 Mode-hop free athermal laser  
Embodiments of the invention describe integrating a phase shifting component into a cavity of a laser. Said phase shifter is capable of a continuous phase shift at a single wavelength over a large...
8867582 Laser diode assembly  
A laser diode assembly includes a housing having a housing part and a mounting part that is connected to the housing part and that extends away from the housing part along an extension direction....
8861559 Method to drive semiconductor laser diode  
A method or algorithm to control a driving current supplied to a semiconductor laser diode (LD) is disclosed. the method first prepares the look-up-table (LUT) that stores a set of parameters, α...
8831057 Laser device having a gas-purged laser resonator  
In a laser device having at least one gas-purged laser resonator which is arranged in a purging gas circuit which has upstream of the laser resonator both a low pressure generator for generating a...
8787412 Method for calibrating a tunable laser  
Method for calibrating and tuning a part wise monotonically, continuously tunable semiconductor laser having a phase section and a first Bragg reflector section, through which sections a phase...
8724097 Optical hazard avoidance and method  
A source of light that could cause ocular damage within a given range from the source of light, such as a first laser, is accompanied by an optical hazard avoidance device, such as a second laser,...
8691598 Dual-loop control for laser annealing of semiconductor wafers  
Systems and methods for performing semiconductor laser annealing using dual loop control are disclosed. The first control loop operates at a first frequency and controls the output of the laser...
8681826 Method for tuning semiconductor laser  
A method for tuning a semiconductor laser including a plurality of wavelength selection portions, each of which has a periodic wavelength characteristic, including: controlling a value of a...
8660164 Method and system for avoiding package induced failure in swept semiconductor source  
Dry oxygen, dry air, or other gases such as ozone are hermetically sealed within the package of the external cavity laser or ASE swept source to avoid packaging-induced failure or PIF. PIF due to...
8649408 Semiconductor laser device  
According to one embodiment, a semiconductor laser device with high reliability and excellent heat dissipation is provided. The semiconductor laser device includes an active layer, a p-type...
8593504 Changing bandwidth usage based on user events  
Once an active video conference is set up and a user is viewing the active video conference at a video terminal, the video terminal looks for different events that indicate a change in focus of...
8559473 System and method for lasers in surgical applications  
Disclosed is a surgical laser system. The system includes a laser generator to generate laser radiation to cause water absorption levels that approximate water absorption levels achieved with a...
8548016 Tunable laser system having fine and coarse wavelength discrimination  
A tunable laser system having fine and coarse wavelength discrimination is provided. The tunable laser system includes a first filter having a first free spectral range (FSR) and a second filter...
8532153 Thermal chirp compensation in a chirp managed laser  
Thermal chirp compensation in a chirp managed laser. In one example embodiment, a laser package including a laser and an optical spectrum reshaper configured to convert frequency modulated optical...
8514901 Silicon-based cooling package for laser gain medium  
Embodiments of silicon-based thermal energy transfer apparatus for gain medium crystal of a laser system are provided. For a disk-shaped crystal, the apparatus includes a silicon-based manifold...
8498316 Intra-cavity second harmonic generation (SHG) laser device  
A laser device for intra-cavity frequency conversion, in particular, for the second harmonic generation, the device comprising a laser cavity, formed by the first and the second laser cavity end...
8467426 Method and apparatus for cooling a fiber laser or amplifier  
A system and method for cooling an optical fiber includes a flexible heat sink member, a heat pipe evaporator, and a thermal storage medium. The flexible heat sink member is in thermal contact...
8457499 Semiconductor laser drive device, semiconductor laser drive method, light transmission device, optical wiring module, and electronic device  
A semiconductor laser drive apparatus comprises a bias current setting section (232) which sets a bias current value on the basis of the drive temperature so that the temperature characteristic of...
8457173 Silicon-based lens support structure for diode laser  
An apparatus that includes a silicon-based support member and a silicon-based alignment structure is provided. The silicon-based alignment structure is received on a receiving surface of the...
8442080 Laser operation for survey instruments  
The performance of a laser scanner is optimized in the field by automatically determining appropriate laser parameters for the scan location. A laser control system uses information such as the...
8369712 Dispersion compensation circuitry and system for analog video transmission with direct modulated laser  
An improved precompensation circuit includes a greatly improved differentiator in the dispersion precompensation path, a preprocessor in the dispersion precompensation path for reducing f2−f1 type...
8300669 Control system and apparatus for use with ultra-fast laser  
A control system and apparatus for use with an ultra-fast laser is provided. In another aspect of the present invention, the apparatus includes a laser, pulse shaper, detection device and control...
8279903 Femtosecond laser processing system with process parameters, controls and feedback  
A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems...
8265105 Scanning temporal ultrafast delay and methods and apparatuses therefor  
The present invention is directed to methods and apparatuses for performing temporal scanning using ultra-short pulsewidth lasers in which only minimal (micro-scale) mechanical movement is...
8249122 Spatial filters  
An etched-facet single lateral mode semiconductor photonic device is fabricated by depositing an anti reflective coating on the etched facet, and depositing a reflectivity modifying coating in a...
8238392 Temperature controller for gas laser  
A temperature controller for a gas laser which controls temperatures of a plurality of temperature-controlled apparatuses including a first temperature-controlled portion requiring a...
8238401 Silicon-based lens support structure for diode laser  
An apparatus that includes a first diode laser and a silicon-based support structure is provided. The first diode laser is configured to emit a first laser beam when powered. The support structure...
8233511 Method and system for modulation of gain suppression in high average power laser systems  
A high average power laser system with modulated gain suppression includes an input aperture associated with a first laser beam extraction path and an output aperture associated with the first...
8218589 High-energy laser atmospheric compensation and aimpoint maintenance  
A high-energy laser weapon system in which the high-energy laser beam itself is used to correct for atmospheric fluctuations thereby replacing a separate beacon illuminator system. The high-energy...
8199785 Thermal chirp compensation in a chirp managed laser  
Thermal chirp compensation in a chirp managed laser. In one example embodiment, a method for thermal chirp compensation in a chirp managed laser (CML) includes several acts. First, a first bias...
8121159 Temperature compensation method for laser power of an optical disk drive  
A temperature compensation method for laser power in an optical disk drive is provided. A predetermined linear-fitting power curve and a temperature-changing slope curve are previously stored in...
8045260 Optimized signal control in frequency-doubled laser sources  
The present disclosure relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present disclosure, a method of operating a laser projection...
8036539 Gigabit ethernet longwave optical transceiver module having amplified bias current  
An optical transceiver module configured for longwave optical transmission is disclosed. Significantly, the transceiver module utilizes components formerly used only for shortwave optical...
8023541 Optical transmission circuit  
An optical transmission circuit includes a light emitting device (10) having different temperature characteristics at low temperature and high temperature (e.g., a VCSEL (Vertical Cavity Surface...
7975493 Thermoelectric cooler with inrush current control  
Systems and methods for controlling a thermoelectric cooler (TEC) in an optical transceiver. A TEC system includes a processor that interacts with a power supply and a TEC controller to prevent...
7970028 System and methods for speckle reduction  
A method of operating a laser source comprising is provided. The method reduces speckle contrast in a projected image by creating a plurality of statistically independent speckle patterns. The...
7957445 Spatial filters  
An etched-facet single lateral mode semiconductor photonic device is fabricated by depositing an anti reflective coating on the etched facet, and depositing a reflectivity modifying coating in a...
7949023 Semiconductor laser apparatus  
A semiconductor laser apparatus of the present invention includes: a semiconductor laser chip 1 having an electrode 11 formed on a surface of the semiconductor laser chip 1; a heat sink 3 for the...
7945172 Dispersion compensation circuitry and system for analog video transmission with direct modulated laser  
An improved precompensation circuit includes a greatly improved differentiator in the dispersion precompensation path, a preprocessor in the dispersion precompensation path for reducing f2−f1 type...
7940819 Tunable laser module, tunable laser apparatus and controlling method for tunable laser  
A tunable laser module includes a tunable laser section including a gain medium and a wavelength filter having a periodic characteristic which brings about a discontinuous variation of an...
7902482 Laser machining apparatus and control method for the apparatus  
A laser beam machine includes a controller for outputting command pulse sets according to control parameter settings for controlling laser pulse output power, a thinning-out circuit, into which...
7894496 Gain media edge treatment to suppress amplified spontaneous emission in a high power laser  
A novel method and apparatus for suppressing ASE and/or parasitic oscillation modes in a laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser...
7881350 Laser apparatus, laser irradiation method, and manufacturing method of semiconductor device  
It is an object to provide a laser apparatus, a laser irradiating method and a manufacturing method of a semiconductor device that can perform uniform a process with a laser beam to an object...