搜索结果: 1-15 共查到“光学工程 Reduction”相关记录31条 . 查询时间(0.095 秒)
OPTIMAL INFORMATION EXTRACTION OF LASER SCANNING DATASET BY SCALE-ADAPTIVE REDUCTION
Multi-scale Surface variation Radial basis function Just-Noticeable-Difference Degradation
2018/5/16
3D laser technology is widely used to collocate the surface information of object. For various applications, we need to extract a good perceptual quality point cloud from the scanned points. To solve ...
QE Reduction due to Pixel Vignetting in CMOS Image Sensors
CMOS imager scaling QE vignetting
2015/8/17
CMOS image sensor designers take advantage of technology scaling either by reducing pixel size or by adding more transistors to the pixel. In both cases, the distance from the chip surface to the phot...
Speckle Reduction in Imaging Projection Systems
Diffractive Diffusers Speckle Contrast Reduction Laser Pico-Projectors
2013/1/30
Diffractive diffusers (phase gratings) are routinely used for homogenizing and beam shaping for laser beam applications. Another use for diffractive diffusers is in the reduction of speckle for pico-p...
The field sequential color (FSC) mechanism can effectively generate multi-primary color fields in temporal sequence to form a full-color image. Color breakup (CBU), however,has appeared intrinsically ...
Color Breakup Reduction by 180 Hz Stencil-FSC Method in Large-Sized Color Filter-Less LCDs
2011/12/13
Field-sequential color (FSC) is a high optical throughput technique for future green liquid crystal displays (LCDs). However, the FSC-LCD faces a lethal issue, color breakup (CBU) which degrades image...
A novel micro-grooved structure of lightguides and a sequential driving scheme of light soures were demonstrated in achieving comparable image qualities of 3-D displays to that of 2-D displays. The mo...
High-speed all-optical data-format conversion and logic gate from a synchronously modulated Fabry朠閞ot laser diode (FPLD) below threshold condition is demonstrated by using external injection-induced n...
Reduction of hybrid silicon laser thermal impedance using Poly Si thermal shunts
Optoelectronics Lasers and laser optics Optical devices
2015/5/26
We present a hybrid silicon evanescent laser that uses poly-silicon thermal shunts to reduce the device thermal impedance from 41.5 to 33.5 deg. C/W.
Reduction of Crosstalk by Trench-Assisted Multi-Core Fiber
Fiber characterization Fiber design fabrication
2015/5/26
Trench-assisted multi-core fiber (TA-MCF) is proposed to achieve high dense MCF design with a solid structure. The crosstalk value at 1.55 μm of fabricated TA-MCF is estimated to be –35 dB at 100 km.
Reduction of Back-Reflection induced Power Penalty by means of Coherent Seeding Source with Optical Feedback in a Loop-Back WDM-PON
Networks Optical communication
2015/5/20
We proposed a novel method to implement the coherent seeding source using optical feedback and experimentally demonstrated the feasibility of our seed light under various back reflection levels in a l...
Optical Network Design Algorithms that Consider Optical Path Add/Drop Ratio Restrictions for OXC Hardware Scale Reduction
Optical Network Design Algorithms Hardware Scale Add/Drop Ratio
2015/5/18
We develop network design algorithms that consider constraints on the number of added/dropped optical paths at nodes in terms of wavelength and of fiber. The strategy is demonstrated to significantly ...
Significant Overhead Reduction of Multi-band Tb/s Coherent Optical OFDM Systems
Multi-band Tb/s Coherent Optical OFDM Systems Overhead Reduction
2015/5/15
The timing and optical laser phase of individual bands in multi-band OFDM are correlated. We significantly reduce the OFDM overhead through using FFT window synchronization for channel estimation and ...
Reduction of Fast SOP Changes in DSCMs under Influence of Shock and Vibrations
Fibers single-mode Polarization
2015/6/10
Fast SOP changes in fiber-based dispersion slope compensating modules (DSCMs) due to mechanical impact are effectively suppressed by introducing a simple passive vibration-suppression scheme consistin...
Reduction of Crosstalk by Quasi-Homogeneous Solid Multi-Core Fiber
Fiber characterization Fiber design fabrication
2015/6/10
Power-conversion efficiency reduction on a quasi-homogeneous solid multi-core fiber is numerically investigated. The fiber length dependence of measured crosstalk of fabricated fibers is in good agree...
Noise Reduction of OCDM Signals by Electrical Time Gating
Noise Reduction OCDM Signals Electrical Time Gating
2015/6/9
To reduce the MAI noises from the received OCDM signals, a new electrical time gating method has been designed and evaluated. The results show a bit-error rate improvement of up to over 10 8 .