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Black phosphorus is new ‘wonder material’ for improving optical communication
Black phosphorus wonder material optical communication
2015/3/4
Phosphorus, a highly reactive element commonly found in match heads, tracer bullets, and fertilizers, can be turned into a stable crystalline form known as black phosphorus. In a new study, researcher...
Method for Improving the Lateral Resolution of Near-Infrared (NIR) Single Optods: Application to Subcutaneous Vein Detection and Localization
Reflectance Measurements Photon Migration Optical Diagnosis Fiber Probe Design
2013/1/30
NIR backscattering measurements using single source-detector optical probe (optods) can detect absorption areas within deep tissue layer. However, such optods, are characterized by large separation di...
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...
Increased Organic Light-Emitting Diode Panel Light Efficiency by Optimizing Structure and Improving Alignment of Pyramidal Array Light-Enhancing Layers
organic light-emitting diode (OLED) array light-enhancing layer light efficiency alignment Moire?pattern
2011/11/24
A pyramidal array light-enhancing layer (pyramidal ALEL) on an organic light emitting diode (OLED) panel has been optimized to enhance the luminance efficiency with a gain factor of 2.03 experimentall...
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...
A Scheme for Improving the Performance of 100-Gb/s Polarization-Multiplexed RZ33 DQPSK Signals Using the Phase Regenerator and PMD compensator
Fiber optics communications Phase modulation Polarization
2015/6/4
We proposed a scheme of combination of phase regenerator and PMD compensator to the 100-Gbit/s Polarization-Multiplexed DQPSK System to improve its tolerance to PMD. The system performance is effectiv...
Improving Optical Steganography Transmission Privacy by Imposing Phase Masks on Stealth Signals
Optical security encryption Optical communications
2015/6/4
Temporal phase modulation of spread stealth signals is proposed to improve optical steganography transmission privacy. It increases an eavesdropper’s difficulty of detecting and intercepting the steal...
Optical Biasing in Direct Detection Optical-OFDM for Improving Receiver Sensitivity
Fiber optics communications Modulation
2015/6/4
We show that replacing of electrical by an optical biasing minimizes the nonlinearity effect of an optical modulator. This allows the amplitude of the driving signal to be increased which increases th...
Improving Nonlinear Precompensation in Direct-Detection Optical OFDM Communications Systems
Nonlinear Precompensation Direct-Detection Optical OFDM Communications Systems
2015/8/4
Carrier boosting at the receiver enables direct detection optical OFDM (DDO-OFDM) to outperform coherent OOFDM in the nonlinear limit. Boosting also improves the effectiveness of nonlinearity precompe...
A novel DSP algorithm for improving the performance of digital coherent receiver using single-ended photo detection
DSP algorithm improving the performance digital coherent receiver single-ended photo detection
2015/7/30
A novel digital signal processing algorithm is proposed to improve the performance of digital coherent receivers using single-ended photo detection. The effectiveness of the proposed algorithm is expe...