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CLOSE-RANGE SCANNING OF THE CUVILLIES-THEATRE IN MUNICH
Close-Range Scanning Topometrical 3D-Scanners Texture Mapping Laser Tracker Cuvillies Theatre Munich
2015/10/8
This project was an European proposal in January 2006. The aim of the project was indicated
to scan the Cuvillies Theatre in Munich with an accuracy of 0.4 mm leading to a 3Dvisualisation of the who...
an integrated on-board laser range sensing system for on-the-way city and road modelling
Three-dimensional Laser Scanning GPS/INS Geometric Modelling
2015/9/1
Precise realistic models of outdoor environments such as cities and roads are useful for various applications. However, for a high level of detail, and a large size of environment to be digitized, one...
FAST AND ACCURATE CLOSE RANGE 3D MODELLING BY LASER SCANNING SYSTEM
laser scanning, TIN surfaces
2015/3/6
We applied the laser scanner Callidus Precision System to digitise the shape of the three-dimensional small temple inside the Mole
Vanvitelliana in Ancona to build a 3D model. It is a complicated ta...
Scaling up close-range surveys, a challenge for the generalization of as-built data in industrial applications
As-built data terrestrial laser scanner panoramic images CAD models industrial applications large scale scanning surveys
2014/7/30
As-built CAD data reconstructed from Terrestrial Laser Scanner (TLS) data are used for more than two decades by Electricité de France (EDF) to prepare maintenance operations in its facilities. But tod...
Analysis and correction of the dependency between laser scanner intensity values and range
Terrestrial laser scanning intensity range correction
2014/7/30
Intensity values, which are registered by a terrestrial laser scanner system (TLS) for each point of a 3D point cloud in addition to its coordinates, are affected by the characteristic of the measured...
Wide-range BER Measurement Scheme by Estimating BER of Discarded Frames for 10 G-EPON Systems
Fiber optics communication Optical communication
2015/5/22
This paper describes a new BER measurement method obtaining the BER by estimating the number of error bits in discarded frames using the rate of discarded frames. The BER is obtained precisely by the ...
Impact of alfa-factor on SOA Dynamic Range for 20 GBd BPSK, QPSK and 16-QAM Signals
Impact of alfa-factor SOA Dynamic Range 20 GBd BPSK QPSK 16-QAM Signals
2015/5/20
Impact of SOA α-factor on dynamic range limitation decreases for higher-order modulation formats leading to undistinguishable performances of bulk and QD SOAs. Results are supported by experiments at ...
Large range microwave frequency measurement using a fiber delay interferometer pair
fiber delay interferometer pair microwave frequency measurement
2015/5/15
We demonstrate a photonic approach to IFM using two parallel home-made fiber delay interferometers, packaged into a 10cm×8cm board. A maximum measurement frequency of 36.7GHz and measurement error les...
Wide Dynamic Range of Ring Resonator Channel-Dropping Filters with Integrated SOAs
Integrated SOA Ring Resonator Channel-Dropping Filters Wide Dynamic Range
2015/5/15
We present the first complete simulation of the dynamic range and noise of InGaAsP multi-ring channel-drop filters with internal SOAs. The results show gain saturation, and spontaneous emission noise ...
Ultra wide range tunable delay line using dynamic grating reflectors in optical fibers
fiber optics nonlinear optics fibers scattering stimulated Brillouin Bragg reflectors
2015/6/10
We experimentally demonstrate a novel technique to realize a tunable delay line based on dynamic Brillouin gratings in a high birefringence fiber. A 8ns pulse signal is continuously delayed up to 184n...
Picosecond Fiber Optical Parametric Oscillator with 500 nm Tuning Range Using Dispersion-Shifted Fiber
Nonlinear Optics fibers Nonlinear optics four-wave mixing
2015/6/9
We demonstrate a picosecond fiber optical parametric oscillator with a tuning range of 500 nm pumped by a relatively low-cost intensity-modulated pump. Pulses with pulsewidth from 7 ps to 17 ps are ge...
10.3-Gb/s Operation over a Wide Temperature Range in 1.3-μm Quantum-dot DFB Lasers with High Modal Gain
Lasers distributed-feedback Quantum dot devices
2015/6/8
Temperature-stable 10.3-Gb/s operation was attained for 1.3-μm quantum-dot DFB lasers with high modal gain. Clearly-opened eye diagrams with the extinction ratio of over 5.2 dB were obtained from -40o...
Bi-doped Fiber Lasers and Amplifiers for a Wavelength Range of 1300-1500 nm
Fiber optics amplifiers oscillators Lasers fiber
2015/6/5
Bi-doped fibers are a promising medium for lasers and amplifiers in the 1150-1600nm wavelength range. We present the results on the development of Bi-doped fiber lasers and amplifiers for telecom wind...
Analyzing return loss deterioration of optical fiber joints with various air-filled gaps over wide wavelength range
Fiber characterization Fiber optics
2015/6/5
We experimentally investigated the return loss of optical fiber joints with various air-filled gaps. We discovered that the return loss might deteriorate to 8.6 dB for one connector and 5.9 dB for fou...
Low-cost and High-capacity Short-range Optical Interconnects using Graded-Index Plastic Optical Fiber
Fiber optics communications Polymers
2015/6/4
We demonstrate a transmission rate of 51.8 Gb/s over 100-meters of perfluorinated multimode graded-index plastic optical fiber using discrete multitone modulation. The results prove suitability of pla...