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TOPOLOGICAL 3D ELEVATION DATA INTERPOLATION OF ASTER GDEM BASED ON CONTINUOUS DEFORMATION
Homotopy continuation 3D Data Interpolation DEM Optimization
2018/11/9
In Geographic Information Science, polynomial methods such as linear estimation and non-polynomial methods including Inverse Distance Weighting and Kriging have been used for elevation data interpolat...
3D MODELING OF OUTDOOR SCENES BY INTEGRATING STOP-AND-GO AND CONTINUOUS SCANNING OF RANGEFINDER
Three-dimensional Modeling Laser scanning Urban Scene
2015/8/7
This paper describes a 3D modeling method for wide outdoor environments by integrating stop-and-go and continuous scanning of laser
rangefinder. First, range images of an outdoor scene are meas...
Extracavity Parametric Oscillation with Continuous and/or Discontinuous Frequency Tuning
Optical Parametric Oscillator Fabry-Perot Etalon Analog-Digital Converter
2013/1/30
A continuously or/and discontinuously tunable LiNbO3 Optical Parametric Oscillator (OPO) with the spectral range of 1.42 - 4.24 um and shifting of 0…12 nm is created and investigated. The OPO resonato...
Widely-Tunable Continuous-Wave Single-Longitudinal- Mode Fiber Optical Parametric Oscillator
Nonlinear Optics fibers Nonlinear optics four-wave mixing
2015/5/26
A continuous-wave fiber optical parametric oscillator with a tunability of 114 nm, a wavelength span of 143 nm and single-longitudinal-mode oscillation is demonstrated. The short-term linewidth of the...
Coherent State Quantum Key Distribution with Continuous-Wave Laser Beams
Quantum optics Optical security encryption Quantum communications
2015/6/10
Continuous variable quantum key distribution relies on the transmission of weakly modulated coherent states and the detection of optical field for secure communication. In this talk, we give an overvi...
Use of discrete modulation and a continuous wave local oscillator in a 24 km continuous variable quantum key distribution system
Quantum cryptography Quantum communications
2015/6/10
We implement an experimental continuous variable quantum key distribution system over 24 km of optical fiber that uses discrete signaling and a continuous wave local oscillator. A secure key rate of 3...
Continuous,Real-Time,Full-Field Waveform Measurements via Spectral Slicing and Parallel Digital Coherent Detection
Homodyning Phase measurement Ultrafast measurements
2015/6/10
Single-shot, amplitude and phase characterization of 160-GHz bandwidth optical wave-forms with 2-μs record lengths using a bandwidth- and time-record scalable technique based on parallelized balanced ...
Continuous Phase Modulation as an Alternative to QPSK for 100 Gb/s Optical Links
Fiber optics communications Coherent communications
2015/6/5
Constant envelope formats including CPM may reduce the impact of nonlinear impairments arising from intensity variations and the associated nonlinear phase noise. We quantify the advantages of CPM ver...
Tunable Continuous-Wave Fiber Optical Parametric Oscillator with 1-W Output Power
Fiber optics amplifiers oscillators Fiber optics communications Nonlinear optics fibers
2015/6/4
We report on a CW fiber OPO, whose output wavelength can be tuned over the 1463-1674nm range, by means of a tunable intracavity filter. Over 1W of output power can be extracted at long wavelengths.
Continuous wave terahertz spectrometer based on two DFB laser diodesbased on two DFB laser diodes
terahertz continuous wave spectroscopy Bragg structure
2011/5/6
In this paper, a continuous wave (cw) spectrometer in the far infrared range is presented.
Electromagnetic radiation is generated via photomixing phenomena and covers frequencies
between about 50 GH...
Single-Longitudinal-Mode Continuous-Wave Fiber Optical Parametric Oscillator
Single-Longitudinal-Mode Continuous-Wave Fiber Optical Parametric Oscillator
2015/7/16
Single-longitudinal-mode fiber optical parametric oscillator is realized by resonating independently the signal and idler frequencies in two separate optical cavities, combined with a sub-ring cavity ...
Continuous-Wave One-Pump Fiber Optical Parametric Amplifier with 270 nm Gain Bandwidth
Pump Fiber Optical Parametric Amplifier
2015/7/14
We report operation of a continuous-wave one-pump fibre OPA with net gain between 1447 nm and 1717 nm. We used a 114 m long step-index highly-nonlinear fibre, and 5 W of pump power.
Effect of energy pooling collisions in formation of a cesium plasma by continuous wave resonance excitation
laser collisional ionization energy pooling plasma cesium
2011/5/6
The generation of plasma in cesium vapor excited by cw laser is investigated theoretically. We
have developed a computational model which quantitatively explains the laser power dependences
of elect...
High-Efficiency Intracavity Continuous-Wave Green-Light Generation by Quasiphase Matching in a Bulk Periodically Poled MgO:LiNbO3 Crystal
Quasiphase Matching LiNbO3 Crystal
2008/10/31
908 mW of green light at 532 nm were generated by intracavity quasiphase matching in a bulk periodically poled MgO:LiNbO3 (PPMgLN) crystal. A maximum optical-to-optical conversion efficien...
Wavelength Demultiplexer Based on a Continuous-Wave Bismuth-Oxide Fiber Optical Parametric Amplifier
Wavelength Demultiplexer Continuous-Wave Bismuth-Oxide Fiber Optical Parametric Amplifier
2015/8/6
We used the sub-nanometer bandwidth of a bismuth-oxide fiber OPA for demultiplexing 10Gb/s channels 100GHz apart with penalty <2dB. We obtained -20dB of crosstalk, with 2.5W of CW pump power.