搜索结果: 1-15 共查到“光信息技术 Technique”相关记录17条 . 查询时间(0.237 秒)
Microscopy technique makes finer images of deeper tissue, more quickly（图）
显微镜技术 深层组织图像 大脑内血管 神经元
2021/7/7
To create high-resolution, 3D images of tissues such as the brain, researchers often use two-photon microscopy, which involves aiming a high-intensity laser at the specimen to induce fluorescence exci...
Microscopists have long sought a way to produce high-quality, deep-tissue imaging of living subjects in a timely fashion. To date, they have had to choose between image quality or speed when looking i...
Improving the Quality of Liquid-Crystal Projection Image by Multilevel Diffractive Grating Technique
liquid-crystal projection system multilevel diffractive grating VLSI process plastic molding pixel depixelization
2011/11/30
A technique using multilevel diffractive gratings to suppress the discrete nature of liquid crystal display (LCD) projection images is demonstrated. The multilevel diffractive gratings, having a cross...
Characterization of the Optical Properties of Heavy Metal Ions Using Surface Plasmon Resonance Technique
Surface Plasmon Resonance Optical Propertie Heavy Metal Ions
2011/9/30
The aim of this research is to characterize the optical properties of heavy metal ions (Hg2+, Cu2+, Pb2+ and Zn2+) using surface plasmon resonance (SPR) technique. Glass cover slips, used as substrate...
A Novel Wireless over Fiber Access Architecture Employing Moving Chain Cells and RoF Technique for Broadband Wireless Applications on the Train Environment
Networks ptical communications
2011/5/26
We have demonstrated a hybrid optical/wireless system based on moving chain cells and radio-over-fiber techniques. This scheme can improve power efficiency, cell-edge coverage,system throughput and fl...
Adaptive Classified Cloning and Aggregation Technique for Delay and Loss sensitive Applications in OBS Networks
Networks Fiber optics communications
2011/5/22
An adaptive classified cloning and aggregation technique is introduced for deployment with Optical Burst Switching. Simulations show up to 74% reduction in loss rate over conventional cloning for appl...
Recent Progress on Nonlinear Compensation Technique in Digital Coherent Receiver
Fiber optics communications Coherent communications
2010/6/9
Enhanced digital signal processing algorithms are proposed and evaluated experimentally in order to improve the tolerances to intra-channel and inter-channel nonlinear effects of intradyne receiver an...
40 Gb/s Transmission Using a Hybrid PDM Technique
fiber optics communications multiplexing phase modulation
2010/6/9
A hybrid polarization division multiplexing (PDM) technique was demonstrated for 40Gb/s RZ-DPSK signal without polarization tracking receiver (PTR). Long-term Q-factor measurements and DGD tolerance s...
A Digital Subcarrier Multiplexing Technique for Increased Spectral Efficiency in Optical Systems Using Direct Detection
Fiber optics optical communications Modulation Multiplexing
2010/6/8
We propose a novel technique that allows direct detection of multicarrier signals without using DSP at the receiver. Performance at 55.5 Gb/s, back-to-back and after 1040 km of dispersion uncompensate...
Phasor Monitoring of DxPSK Signals Using Software-Based Synchronization Technique
Fiber optics communications Phase modulation
2010/6/8
We develop a novel technique to obtain the constellation diagram from asynchronously sampled data measured by using the delay-detection technique, and demonstrate the constellation monitoring of 10.7-...
Single-Channel 400 Gbit/s, OTDM-32 RZ/QAM Coherent Transmission Over 225 km Using an Optical Phase-Locked Loop Technique
Coherent communications Modulation Multiplexing
2010/6/8
We describe a single-channel 400 Gbit/s (polarization-multiplexed, 10 Gsymbol/s, 4 OTDM-32 RZ/QAM) coherent transmission using an optical phase-locked loop technique with a frequency-stabilized fiber ...
Wide Dynamic Range OSNR Monitoring for RZ-DQPSK Systems using Delay-Tap Sampling Technique
Fiber optics communications Fiber optics links subsystems
2010/6/5
We propose half-symbol delay-tap sampling for OSNR monitoring and extend the monitoring range to 5−45 dB. The proposed method also enables calibration-free monitoring with range of 16−43 d...
Spectrally Efficient Direct-Detected Optical OFDM Transmission Using Carrier-Data Timely Multiplexing Technique
Spectrally Efficient Direct-Detected Optical OFDM Transmission Timely Multiplexing Technique
2009/7/17
We timely multiplex the carrier and data symbols for DD-OFDM that improves the spectral efficiency,receiving sensitivity, and tolerances to PMD and optical filtering effects, when compared with the pr...
High Sensitive Clock Recovery for a 160Gbit/s OTDM Signal by Optoelectronic Phase-Locked Loop Technique
Sensitive Clock Recovery OTDM Signal Optoelectronic Phase-Locked Loop Technique
2009/7/17
We demonstrate high sensitive clock recovery for a 160Gbit/s OTDM signal realized by an optoelectronic phase-locked loop with new configuration. The recovered 10GHz clock has timing jitter of 101fs fo...
All-Optical Multicasting of Millimetre-Wave Signals using Optical Frequency Multiplication Technique for In-building Networks
All-Optical Multicasting Millimetre-Wave Signals Optical Frequency Multiplication Technique In-building Networks
2009/7/15
We demonstrate a new OFM configuration exploiting XGM in SOA for simultaneous all-optical generation and multicasting of mm-wave signals for in-building networks. An EVM of 4.5% is achieved for 20MSym...