搜索结果: 16-30 共查到“工学 broadband”相关记录69条 . 查询时间(0.182 秒)
Broadband Ubiquitous Network Based on RoF-DAS over WDM-PON
Fiber optics communications Networks combinatorial network design
2015/5/26
This report is the first demonstration of RoF-DAS over WDM-PON with TDM techniques to realize a broadband ubiquitous wireless access with a gigabit-class throughput. The optical transmission performan...
Real-Time Ultra-broadband Group Delay Monitoring through Quasi-Incoherent Processing
Fiber Bragg gratings Fiber optics communications Fiber optics components Bragg reflectors Dispersion compensation devices
2015/5/25
Simple method for real-time ultra-broadband group delay measurement of photonic devices is reported, demonstrating accurate group delay ripple monitoring of a 10m-long chirped fiber grating over the f...
Broadband Wavelength Conversion with S/C/L-band Flexible Operation Using Cross-Gain-Modulation in a Single Quantum Dot SOA
All-optical devices Quantum-well dot devices
2015/5/22
We experimentally demonstrated operating original and converted wavelengths flexible wavelength conversion using cross-gain-modulation in a single quantum dot semiconductor optical amplifier with cove...
Time-Stretch Analog-to-Digital Conversion Using Phase Modulation and Broadband Balanced Coherent Detection for Improving Resolution
Fiber optics links subsystems Radio frequency photonics
2015/5/22
We introduce a novel implementation of time-stretch analog-to-digital conversion which uses phase modulation and balanced coherent detection for improving resolution. Proof of concept experiment demon...
Compact broadband polarizer based on shallowly-etched silicon-on-insulator ridge optical waveguides
Compact broadband polarizer based shallowly-etched silicon-on-insulator ridge optical waveguides
2015/5/21
A novel type of optical polarizer based on silicon-on-insulator shallowly-etched ridge waveguide is designed,fabricated and characterized. The present polarizer is compact, broad-band, and easy-fabric...
Low Power and Broadband 2 X 2 Silicon Thermo-Optic Switch
Low Power Broadband Thermo-Optic Switch
2015/5/21
We present a 2X2 silicon thermo-optic switch which requires a switching power of only ～12.5 mW and has a response time of 5.4 μs. The measured extinction ratio of the switch is >～20 dB across the C an...
A Broadband, Spectrally Flat, High Rep-rate Frequency Comb: Bandwidth Scaling and Flatness Enhancement of Phase Modulated CW through Cascaded Four-Wave Mixing
Broadband Spectrally Flat High Rep-rate Frequency Comb Bandwidth Scaling Flatness Enhancement Phase Modulated CW Cascaded Four-Wave Mixing
2015/5/20
We demonstrate a scheme to scale the bandwidth by several times while enhancing spectral flatness of frequency combs generated by intensity and phase modulation of CW lasers using cascaded four-wave m...
Current and Next-Generation Broadband Access Technologies
Broadband Access Technologie Current Next-Generation
2015/5/18
Current and Next-Generation Broadband Access Technologies.
Architecting Green Broadband Cable Access Network:Energy-Delay Trade-off
Green Broadband Cable Access Network Energy-Delay Trade-off
2015/5/18
We propose and investigate an energy-saving algorithm for DOCSIS-3.0 cable access networks. Numerical simulations indicate a possible 17.4% energy-saving for 8000 cable modems,but also reveal a fundam...
High-sensitivity broadband micro-Michelson-interferometer based on an end-sphered hollow-core fiber
broadband micro-Michelson-interferometer nd-sphered ollow-core fiber
2015/5/15
We demonstrate a high-sensitivity broadband micro-Michelson fiber interferometer using a singlemode fiber end-spliced with a short (43.9μm) hollow-core end-collapsed lensed fiber.The extinction ratio ...
Precise Spectral and Impulse Response Characterization of Broadband Super Structured FBGs by Multi-Scan OSSB
Precise Spectral Impulse Response Characterization FBGs Multi-Scan OSSB
2015/5/15
We demonstrate a broadband optical single side band (OSSB) measurement by merging multiple RF scans. We provide a chip by chip optical phase measurements on a Super Structured FBG designed for Coheren...
Nonlinearity-controllable all-optical logic gates based on broadband defect mode
photonic crystals all-optical logic gates broadband defect mode nonlinearity
2011/5/9
To avoid the adverse effect of unstable nonlinear progress on the design of all-optical logic gates,
the broadband defect mode of one-dimensional photonic crystal with dual-defects has been studied.
...
Design of piezoelectric energy harvesting devices subjected to broadband random vibrations by applying topology optimization
Topology optimization Energy harvesting Piezoelectric material
2012/2/29
Converting ambient vibration energy into electrical energy by using piezoelectric energy harvester has attracted a lot of interest in the past few years. In this paper, a topology optimization based m...
A Broadband Ultra-low Loss All-solid Photonic Bandgap Fiber
Fiber design fabrication Photonic crystal fiber
2015/6/10
We describe the fabrication and characteristic of an all-solid photonic bandgap fiber with loss as low as 0.41dB/km at 1550nm within the first-order bandgap. The control of bandgaps,dispersion and ben...
Experimental Study on Broadband Nonlinear Phase Wandering in Coherent Detection Long-Haul Transmissions
Coherent communications Fiber optics communications
2015/6/9
We investigate fast phase wandering observed in coherent detection long-haul transmission experiments. We demonstrate the phase wandering is a broadband nonlinear effect.We compare its impact on diffe...