Frontiers of Optoelectronics
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Ultra-thin polarization independent broadband terahertz metamaterial absorber
Frontiers of Optoelectronics - Tập 14 - Trang 288-297 - 2021
In this work, we present the design of a polarization independent broadband absorber in the terahertz (THz) frequency range using a metasurface resonator. The absorber comprises of three layers, of which, the top layer is made of a vanadium dioxide (VO2) resonator with an electrical conductivity of σ = 200000 S/m; the bottom layer consists of a planar layer made of gold metal, and a dielectric lay...... hiện toàn bộ
Hybrid algorithm combining genetic algorithm with back propagation neural network for extracting the characteristics of multi-peak Brillouin scattering spectrum
Frontiers of Optoelectronics - Tập 10 - Trang 62-69 - 2017
In this study, a hybrid algorithm combining genetic algorithm (GA) with back propagation (BP) neural network (GA-BP) was proposed for extracting the characteristics of multi-peak Brillouin scattering spectrum. Simulations and experimental results show that the GA-BP hybrid algorithm can accurately identify the position and amount of peaks in multi-peak Brillouin scattering spectrum. Moreover, the ...... hiện toàn bộ
Waveform LiDAR signal denoising based on connected domains
Frontiers of Optoelectronics - Tập 10 - Trang 388-394 - 2017
The streak tube imaging light detection and ranging (LiDAR) is a new type of waveform sampling laser imaging radar whose echo signals are stripe images with a high frame rate. In this study, the morphological and statistical characteristics of stripe signals are analyzed in detail. Based on the concept of mathematical morphology denoising, connected domains are constructed in a noisecontaining str...... hiện toàn bộ
Slab Yb:YAG pulse amplifier with high amplification gain and signal-to-noise ratio
Frontiers of Optoelectronics - - 2017
Toward coherent O-band data center interconnects
Frontiers of Optoelectronics - Tập 14 - Trang 414-425 - 2021
Upcoming generations of coherent intra/inter data center interconnects currently lack a clear path toward a reduction of cost and power consumption, which are the driving factors for these data links. In this work, the tradeoffs associated with a transition from coherent C-band to O-band silicon photonics are addressed and evaluated. The discussion includes the fundamental components of coherent d...... hiện toàn bộ
Recent progress on tandem structured dye-sensitized solar cells
Frontiers of Optoelectronics - Tập 5 Số 4 - Trang 371-389 - 2012
Band gap properties of 2D square lattice photonic crystal composed of rectangular cells
Frontiers of Optoelectronics - Tập 6 - Trang 346-352 - 2013
In this paper, the photonic band gap (PBG) properties of two dimensional (2D) square lattice photonic crystal structures composed of rectangular cells were studied. The effect of refractive index, rectangles length and the ratio of width to length of the rectangles on the PBG properties of the structure with different configurations was investigated. It is found that the density of gaps in both mo...... hiện toàn bộ
2-channel all optical demultiplexer based on photonic crystal ring resonator
Frontiers of Optoelectronics - Tập 6 - Trang 224-227 - 2013
In this paper, we proposed a 2-channel demultiplexer based on photonic crystal ring resonator (PCRR). For performing wavelength selection, we used two ring resonators, two different wavelengths were obtained by using two resonant rings with different values for the radius of dielectric rods. All the simulations and calculations have been done using Rsoft Photonic CAD software, which employs finite...... hiện toàn bộ
On-chip programmable pulse processor employing cascaded MZI-MRR structure
Frontiers of Optoelectronics - - 2019
Broadband linearization for 5G fronthaul transmission
Frontiers of Optoelectronics - Tập 11 - Trang 107-115 - 2018
5G is emerging, but the current fronthaul transmission technologies used for 3G and 4G may not be efficient and appropriate for 5G. It has been found that frequency division multiple access (FDMA) and time-division multiple access (TDMA) based radio over fiber (RoF) may be considered the most appropriate for 5G fronthaul transmission technology. Due to analog RoF transmission, broadband linearizat...... hiện toàn bộ
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