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Photorefractive Amplification of Few-cycle Laser Pulses
Ultrashort pulse lasers Multi-photon interference Photorefractive effect
2009/6/1
Few-cycle pulse amplification by two-photon arranged photorefractive device has been demonstrated. An extraction efficiency of 27 % has been achieved with a gain-bandwidth of 32 THz.
Development of a Terawatt Class Sub-10 fs Laser System
High-intensity ultrafast lasers Ti:Sapphire lasers Sub-10 fs, Terawatt
2009/6/1
We have developed an amplifier chain of Ti:Sapphire laser with a spectral width of more than 200 nm, which potentially generates a terawatt sub-10 fs pulse. This laser system consists of a Ti:Sapphire...
Generation of Fiber Tunable High-power Picosecond Laser Pulse
Fiber laser Fiber amplifier Picosecond laser
2009/6/1
A fiber tunable high-power picosecond laser system has been for the first time demonstrated. A gain switch semiconductor laser diode was introduced as seed source, and a multi-stage single mode Yb-dop...
ROBUST POSE ESTIMATION OF MOVING OBJECTS USING LASER CAMERA DATA FOR AUTONOMOUS RENDEZVOUS & DOCKING
laser camera system pose estimation pose tracking iterative closest point algorithm extend Kalman fi lter point cloud
2009/2/19
Different perception systems are available for the estimation of the pose (position and orientation) of moving objects. For space
applications, an active vision system such as Laser Camera System (LC...
TERRESTRIAL LASER SCANNER POINT CLOUD DENOISING BY RANGE IMAGE NLMEANS PROCESSING FOR SMALL-SIZED OBJECTS
Terrestrial Laser Scanning Denoising Modelling Accuracy
2009/2/19
In some applications, long range operations Terrestrial Laser Scanners (TLS) achieve insufficient precision: for instance, a decorated
façade will not be modeled correctly with the point cloud ...
TOPOGRAPHIC AND DISTANCE EFFECTS IN LASER SCANNER INTENSITY CORRECTION
Laser Scanning Radiometric Calibration Incidence Angle
2009/2/19
The effect of incidence angle on the intensity of laser backscatter has been studied in photonics and optics, but the applications of
these results to remote sensing of natural land targets are limi...
High-Speed Vertical-Cavity Laser Diodes at 1.55 μm
High-Speed Vertical-Cavity Laser Diodes
2004/3/21
Buried tunnel junction vertical-cavity surface-emitting lasers (BTJ-VCSELs) for 1.55 μm wavelength, 3dB-cut-off-frequencies around 8 GHz, modulation bandwidths up to 10 Gbit/s and excellent stationary...
The Realization of ZnO Ultraviolet Laser
ZnO Ultraviolet Laser Atomic Force Microscope X-ray diffraction
2000/4/15
During these years, ZnO has become the promising opto-electronic material. In this paper, ZnO film was deposited by POMBE and studied by AFM and XRD. Its optical pumped ultraviolet laser was realized ...
The operation principles of electrically tunable laser diodes, the device structures for continuous and discontinuous tuning and the relevant device characteristics are presented. Recent progress with...
Fabrication of AlGaInP/GaInP Laser Diodes by Molecular Beam Epitaxy
AlGaInP/GaInP Laser Molecular Beam Epitaxy
1996/3/29
Room temperature pulse operation for AlGaInP/GalnP visible laser diodes prepared by gas source molecular beam epitaxy (GSMBE) have been successfully fabricated and demonstrated. In this report, two ki...
High-Tc Superconducting YBa2Cu3O7-δ Films and YBa2Cu3O7-δ/PrBa2Cu3O7-δ Superlattices Deposited by Laser Ablation
High-Tc Superconducting YBa2Cu3O7-δ Films YBa2Cu3O7-δ/PrBa2Cu3O7-δ Superlattices Laser Ablation
1992/12/16
High Tc superconducting YBa2Cu3O7-d thin films and YBa2Cu37-δ/PrBa2Cu3O7-δ superlattices with various periods and layer thicknesses were deposited by laser ablation on SrTiO3 (100) single crystal subs...
The Effect of High Speed Laser Trimming on Accuracy and Stability of Thick Film Resistors
High Speed Laser Trimming Thick Film Resistors
1981/1/1
Many recommendations have been made on the proper operating conditions for the laser trimming process. In general these recommendations have centered on accuracy, precision or throughput. In some inst...
Thick-Film Laser Trimming Principles, Techniques and Recommendations
Thick-Film Laser Trimming Principles Techniques Recommendations
1981/1/1
Trimming plays an essential role in the manufacture of thick-film resistor networks. The process used to define circuit elements on a substrate, based on silk-screening techniques, is fast and inexpen...