搜索结果: 1-15 共查到“光学工程 Radio”相关记录64条 . 查询时间(0.187 秒)
Experimental demonstration of a photonic Aharonov-Bohm effect at radio frequencies
photonic Aharonov-Bohm effect radio frequencies
2015/8/7
Building upon recent theoretical proposals for creating an effective gauge field for photons, we experimentally demonstrate the photonic Aharonov-Bohm effect. The effect relies on the nonrecipro...
Analysis of the Impact of P-Ratio on BER, Q-Factor and OSNR of Radio over Fiber (RoF) System
Rof System OSNR Parameter BER Q-Parameter Fiber Dispersion Matlab 7.0
2013/1/30
The impact of p-ratio i.e. ratio of carrier power to total received RF power at control office (CO) on Bit error rate (BER), Q- performance parameter and Optical signal noise ratio (OSNR) of RoF commu...
We experimentally demonstrate a simultaneous generation of baseband (BB) and RF signals, using only one single-electrode Mach–Zehnder modulator (SD-MZM) based
on double-sideband with optical carrier ...
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...
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...
This investigation demonstrates the generation of OFDM-RoF signal using frequency doubling technique for the first time, to the author’s best knowledge. The 4-Gb/s OFDM signal using 16-QAM format modu...
Radio over Fiber tunnel for 60 GHz wireless Home Network
Fiber optics optical communications Fiber optics communications
2015/5/26
60GHz radio coverage is extended by using RoF at intermediate frequency with two hops in the air. MMF and low-cost photonics are used. Real-time transmission between two commercial Wireless-HD devices...
Noise Suppression for Fiber Radio Transmission on Spectrum-Sliced WDM-PONs Employing Interferometric Structures
Fiber optics communications Radio frequency photonics
2015/5/26
We propose a novel noise-suppression scheme in spectrum-sliced WDM-PONs.Experimentally, low-noise windows can be created in which the noise is reduced by more than 20dB and the performance of vector s...
MIMO System Capacity Improvements Using Radio-over- Fibre Distributed Antenna System Technology
Fiber optics communications Radio frequency photonics Fiber optics links subsystems
2015/5/25
The effect of antenna separation in a 3×3 MIMO system using RoF DAS technology is investigated. Larger antenna separation is found to improve the throughput due to reduced channel correlation and impr...
Monolithic Electro-Optically Modulated VCSEL Suitable For Radio over Fibre Applications to 20 GHz
Fiber optics communications Modulators
2015/5/25
An integrated EOM VCSELs is shown to offer high linearity (92dB/Hz ⅔ at 6GHz) and by extrapolation ~90dB/Hz ⅔ up to 20GHz. Successful modulation with IEEE 802.11g signals is demonstrated...
Robust BPSK Impulse Radio UWB-over-Fiber Systems Using Optical Phase Modulation
Coherent communications Radio frequency photonics
2015/5/22
The impact of fiber dispersion on the performance of optical phase modulated impulse-radio-ultrawideband (IR-UWB) signals is experimentally investigated. 2Gbps BPSK IR-UWB over 78km fiber transmission...
Impact of Crosstalk on MB-OFDM UWB Transmission in Radio over Fiber WDM System
Fiber optics optical communications Radio frequency photonics
2015/5/22
We experimentally investigate the impact of crosstalk on the performance of MB-OFDM UWB signal transmission in RoF WDM system. It is found that OFDM signal’s orthogonalities are almost kept after 20 k...
Beyond 2.5Gb/s Photonic Generation and Wireless Transmission of Different Pulse Modulation Formats for a High Speed Impulse Radio UWB over Fiber System
Fiber optics communications Radio frequency photonics
2015/5/22
We experimentally demonstrate beyond 2.5Gbps photonic generation of different pulse modulation formats for impulse radio ultra-wideband (IR-UWB) over fiber application. IR-UWB transmission over 20km f...
Radio over Fiber Technology for Next-Generation E-Health in Converged Optical and Wireless Access Network
Optical communications Radio frequency photonics
2015/5/22
Development of system technology for effective networking infrastructure for next generation e-health applications is addressed. An integrated optical wireless access architecture based on radio-over-...
Ultra-High Data-Rate 60 GHz Radio-over-Fiber Systems Employing Optical Frequency Multiplication and Adaptive OFDM Formats
Optical Communications Modulation
2015/5/21
This paper reviews 60-GHz radio-over-fiber systems employing optical frequency multiplication and adaptive OFDM signals with multi-level modulation formats to achieve an ultra-high data rate of up to ...