搜索结果: 1-15 共查到“光学工程 Fibre”相关记录77条 . 查询时间(0.209 秒)
Low loss microstructured Polymer Optical Fibre (mPOF)
Low loss microstructured Polymer Optical Fibre mPOF
2011/5/26
Using a high tension draw we produced a fibre with a loss of 0.16 dB/m at 650nm,making mPOF competitive for the first time with conventional POF. Annealing increases thermal stability.
Performance Improvement by Fibre Nonlinearity Compensation in 112 Gb/s PM M-ary QAM
Coherent communications Nonlinear optics fibers
2011/5/26
We demonstrate that digital back-propagation offers up to six-fold enhancement in transmission reach when nonlinear fibre impairments are compensated in coherently-detected 112 Gb/s PM m-ary QAM, with...
MIMO System Capacity Improvements Using Radio-over- Fibre Distributed Antenna System Technology
Fiber optics communications Radio frequency photonics Fiber optics links subsystems
2011/5/25
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
2011/5/25
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...
Soft Glass Based Large Mode Area Photonic Bandgap Fibre for Mid-Infrared Applications
Microstructured fibres Fibre design fabrication
2011/5/22
An all-solid LMA Bragg fibre (mode area exceeding 1100μm 2 ) is presented for mid-infrared applications, based on a new design strategy that induces large differential loss between fundamental and hig...
40 Gb/s upgrade of a 1614 km link over TrueWave-RS fibre with live 10G OOK traffic
TrueWave-RS 10G OOK traffic
2011/5/18
1614km link over TrueWave-RS fibre carrying 10G live traffic was successfully upgraded to 40Gb/s. XPM affecting 40G channels is simulated and experimentally measured for different channel powers and c...
Measurement of dynamic strain using an optic fibre system in adaptive composite laminates with an integrated piezoelectric sensor/actuator
smart composite materials health monitoring Fabry–Pérot interferometer piezoelectric
2010/7/27
This study seeks the development of adaptive composites capable to monitor and actively damp
vibrations. In the proposed material, vibrations measurements are performed by an embedded
low finesse op...
First Demonstration of Bidirectional Gigabit Transmission over a Single Step-Index Plastic Optical Fibre
Fiber optics communications Optical Communications
2010/6/9
We demonstrated a Gigabit Ethernet bidirectional transmission over a single POF. The solution is attractive for very low cost consumer electronic short-distance cabling at high data rate requiring ext...
Error Free Transmission at 5 Gb/s over 37m of Microstructured Polymer Optical Fibre
Error Free Transmission Microstructured Polymer Optical Fibre
2010/6/9
We demonstrate 5Gb/s transmission in a microstructured PMMA fibre at visible wavelengths.The source used in this measurement is generated by sum frequency mixing a CW Nd-YAG laser with a modulated L B...
Challenges of 40/100 Gbps deployments in long-haul transport networks on existing fibre and system infrastructure
Optical communications Modulation
2010/6/5
High-bandwidth services require faster long-haul transport networks. Meanwhile operators are not ready to make evolve significantly their fibre infrastructure based on PMD-limited G.652 fibre while th...
43Gbit/s NRZ-DPSK and RZ-DQPSK transmission over 1000km of G.652 ultra-low-loss fibre with 200km amplifier spans
Fiber optics communications Optical communications Nonlinear optics
2010/6/5
We demonstrate 40x43Gbit/s NRZ-DPSK and RZ-DQPSK transmission over 1000km of ultra-low-loss G.652 fibre with 200km amplifier spacing. Hybrid contra-directional Raman-EDFA amplification and lumped disp...
Reducing Modal Noise in Short-Range Radio over Multimode Fibre Links
Fiber optics links subsystems Radio frequency photonics
2010/6/4
Reducing gain fluctuations in Short Range Radio over Multimode Fiber Links requires Central Launch. Furthermore, the quality of today’s optical connectors gives importance to the combined effect of fi...
Radio-over-Fibre Phase Contrast Imaging using a Reflective Electro-Absorption Transducer and 1550/1310nm VCSELs
Imaging systems Optical processing of radar images
2010/6/4
Radio-over-fibre phase contrast imaging is a new technique for object characterization in hostile environments. Commercially-available 1550nm/1310nm VCSELs and a reflective electro-absorption transduc...
21.4 GS/s Real-Time DSP-Based Optical OFDM Signal Generation and Transmission Over 1600 km of Uncompensated Fibre
Real-Time DSP-Based Optical OFDM Signal Generation Transmission Over Uncompensated Fibre
2009/7/20
We report a real-time optical OFDM transmitter with the highest sampling rate to date. Generation and transmission of an 8.36Gb/s digitally up-converted single sideband OFDM signal over 1600km of unco...
Coherent Electronic Compensation Techniques for Long-Haul Optical Fibre Transmission–Opportunities and Challenges
Electronic Compensation Techniques Long-Haul Optical Fibre Transmission
2009/7/20
We review recent advances in the use coherent detection and digital signal processing to compensate for dispersion and nonlinearity in long-haul WDM links, and assess the use of these techniques for l...