搜索结果: 31-45 共查到“光学工程 systems”相关记录185条 . 查询时间(0.394 秒)
LAND-BASED MOBILE LASER SCANNING SYSTEMS: A REVIEW
Land-based Mobile Laser Scanning LiDAR GNSS/INS Multi-sensor system Road inspection Urban Mapping
2014/6/5
Mobile mapping has been using various photogrammetric techniques for many years. In recent years, there has been an increase in the number of mobile mapping systems using laser scanners available in t...
A new impulse-type display named Local Blinking High Dynamic Range (HDR) LCD System was proposed, which utilized local dimming technology to achieve a local blinking effect that not only suppressed mo...
Impact of ADC Bandwidth and Clipping Ratio on COF-PON Systems Based on Spatial Coding and Subcarrier Multiplexing
Analog-to-digital convertor (ADC) clipping ratio code-division-multiplexing (CDM) passive optical networks (PON) subcarrier multiplexing
2016/12/2
In this paper, we analyze the impact of analog-to digital convertor (ADC) bandwidth and clipping ratio on the performance of a 1 Gb/s x 15 user CDM-over-fiber-PON (COF PON) system based on 16-QAM modu...
In this paper, we present a reliable architecture for high-capacity fiber-radio system and demonstrate its feasibility. The main trunk of the proposed architecture is a star network with branches comp...
Effects of filter bandwidth and driving voltage on optical duobinary transmission systems
2011/11/23
This work demonstrates how electrical driving voltage of a Mach–Zehnder modulator and the bandwidth of electrical low-pass filters (LPFs) affect optical duobinary signals. The fact that a 100% driving...
This work investigates the effect of phase fluctuation averaging on phase fluctuation induced by intrachannel four-wave mixing (IFWM) in highly dispersed differential phase-shift keying transmission s...
Hybrid optical access networks, integrating fiber-tothe-home (FTTH) and radio-over-fiber (RoF) systems that share a single distributed infrastructure, are promising for future multiservice access netw...
We propose a novel dispersion-free interleaver using optical delay lines by accurately locating the zeros in the transfer function. It has been implemented with the design of interleaver pairs with th...
PCRR Based Bandpass Filter for C and L+U Bands of ITU-T G.694.2 CWDM Systems
Photonic Crystal Ring Resonator Photonic Bandgap CWDM, Bandpass Filter FDTD Method PWE Method
2013/1/30
A two Dimensional (2D) Photonic Crystal Ring Resonator (PCRR) based Bandpass Filter (BPF) is designed to cover C and L+U bands of Coarse Wavelength Division Multiplexing (CWDM) systems. It is devised ...
Synthesis of Chained Achromatic Layer Systems Forming Controlled Low Transmittance Bands
Thin Films Design Light Propagation
2013/1/30
The approach utilized in the design of achromatic periods formed of two layers a high-index and a low-index is developed by combining the first two periods together. These two periods are therefore re...
Long-Haul Atmospheric Laser Communication Systems
Free-space optical comm Optical comm Atmospheric propagation
2015/5/26
Optical communications provides an attractive means of achieving wideband data transfer over long distances. We review perceived challenges and enabling technology developments that promise to facilit...
Frequency-Domain Equalization for Coherent Optical Transmission Systems
Coherent communications Fiber optics links subsystems
2015/5/26
Frequency-domain equalization (FDE) has been attracting much attention for high-speed long-haul transmission over fiber-optic channels. Two FDE configurations for coherent optical transmission are pre...
Experimental Demonstration of XPM Compensation for CO-OFDM Systems with Periodic Dispersion Maps
Fiber optics communications Modulation Nonlinear Optics fibers.
2015/5/26
We experimentally demonstrate compensation of XPM for CO-OFDM systems operating in a periodic dispersion map using a low-bandwidth compensator. The nonlinear threshold was increased by 4 dB in a 22.5 ...
Fast Parallelized Simulation of 112 Gb/s CP-QPSK Transmission Systems using Stratified Monte-Carlo Sampling
Fiber optics communications Coherent communications
2015/5/26
A novel parallelized implementation of the split-step Fourier method on graphics processing units was developed. The combination of Monte-Carlo simulations with single and double precision yields a sp...
Characterization and Monitoring of Laser Linewidths in Coherent Optical OFDM Systems
Fiber optics communications Modulation
2015/5/26
We demonstrate monitoring of digitally-generated laser linewidths for 107-Gb/s coherent optical OFDM systems. Unique characteristics of time-domain phase-error variance are exploited to extract laser ...