搜索结果: 1-14 共查到“光学工程 Analog”相关记录14条 . 查询时间(0.078 秒)
Enhancing the waveguide-resonator optical force with an all-optical on-chip analog of electromagnetically induced transparency
waveguide-resonator optical force all-optical on-chip analog electromagnetically induced transparency
2015/8/7
We demonstrate a fundamental limitation in the force enhancement in simple waveguide-resonator geometry We also show that the all-optical analog to electromagnetically induced transparency, as observe...
System Impacts of Modulation Technology and Phase Noise on Coherent Analog Optical Links
Radio frequency photonics
2015/5/22
We describe an analog optical link using amplitude modulation and coherent detection for high SFDR, gain, and low noise figure. We then address the dominant performance-limiting parameters and discuss...
Linearized Parametric Gate for Real-Time Photonic- Sampled Analog-to-Digital Conversion
Analog optical signal processing Parametric processes Nonlinear optics four-wave mixing
2015/5/22
A linearized parametric sampling gate was constructed to explore its performance limits in an analog-to-digital conversion (ADC) architecture. Linear response of the sampling gate can be achieved both...
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...
Analog Signal Performance of a Hollow-Core-Waveguide using High-Contrast-Gratings
Analog Signal Performance Hollow-Core-Waveguide High-Contrast-Gratings
2015/5/21
On-chip analog signal performance of high-contrast-grating hollow-core-waveguide is evaluated. SFDR of >100 dB can be achieved for IM3 over a wide RF frequency range of 80 GHz and optical wavelength b...
Characterization of Distortionless Analog Signal Multicasting by Parametric Mixer
Fiber optics amplifier oscillators Nonlinear optics parametric processes
2015/6/10
We present characterization of a two-pump parametric device for analog linear multicasting. Linearity of parametric multicasting is assessed from highly linearized input seed by two-tone intermodulati...
High Frequency Photonic Analog-to-Digital Conversion Using Nonuniform Sampling
Radio frequency photonics Fiber optics links subsystems
2015/6/9
We discuss recently developed techniques for photonic analog-to-digital conversion based on nonuniform sampling. We have experimentally validated this approach, demonstrating high resolution, alias-fr...
Using a Microcontroller to Optimize the Bias Voltage of Balanced Photodiodes to Minimize Even-Order Distortion in Analog Fiber-Optic Links
Radio frequency photonics Photodiodes Fiber optic links subsystems
2015/6/4
Use of a microcontroller-based bias board for balanced photodiodes improves even-order distortion cancellation due to voltage dependent responsivity nonlinearities.The bias board improves the second o...
Required Resolution of Digital-Analog-Converter for Optical OFDM
Fiber optics communications Modulation
2015/6/4
The required resolution of digital-analog-converter for optical OFDM was evaluated through simulation and experiment. Signal degradation caused by quantization was independent of subcarrier modulation...
Sensing Ultra-Low-Power Radio Signals by Photonic Analog-to-Digital Conversion
Sensing Radio Signals Photonic Analog-to-Digital Conversion
2015/7/20
A time-stretched photonic analog-to-digital converter with optical amplification is proposed to sense ultra-low power signals for cognitive radio applications. Experimental results show that -65 dBm R...
Ultrafast All-Optical Analog-to-Digital Conversion using Fiber Nonlinearity
Ultrafast All-Optical Analog-to-Digital Conversion Fiber Nonlinearity
2015/7/15
Feasibility toward tera-sample/s all-optical ADC using NOLM and its promising applicationssuch as front-end processor of EDC for above 100Gbit/s optical transmission systems are discussed. Recent reco...
40Gbps,3-bit Operation of a Semiconductor Optical Digital-to-Analog Converter
Semiconductor Optical Digital-to-Analog Converter
2015/7/14
We demonstrate 40Gbps, 3-bit-operation of a semiconductor optical digital-to-analog converter consisting of MMI couplers and delay lines. We achieved output with 7-level amplitude with fixed phase suc...
Performance Prospects of Compact Silicon Microring-Based Electro-Optic Modulator for Analog Optical Links
Compact Silicon Microring-Based Electro-Optic Modulator Analog Optical Links
2015/8/4
We propose ultra-small silicon microring-based analog electro-optic modulators, which exhibit a better SFDR by 5-dB and higher modulation-index compared to MZMs. Third-harmonic-distortion is reduced b...
Stopping Light in a Waveguide with an All-Optical Analog of Electromagnetically Induced Transparency
Light All-Optical Analog Electromagnetically Induced Transparency
2015/8/11
We introduce a new all-optical mechanism that can compress the bandwidth of light pulses to absolute zero, and bring them to a complete stop. The mechanism can be realized in a system consisting of a ...