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The Influence of As on the Morphologies and Optical Characteristics of GaSb/GaAs Quantum Dots
2011/11/18
The influence of As atoms on the morphologies of GaSb quantum dots (QDs) is investigated. Without any special treatment, GaSb quantum rings (QRs) are observed in the embedded GaSb layer even when the ...
WDM up-conversion employing frequency quadrupling in optical modulator
optical modulator simultaneous WDM millimeter-wave
2011/11/17
Optical millimeter-wave generation and up-conversion are essential to Radio-over-Fiber (RoF) communication systems [1-7]. With the rapidly increasing bandwidth requirements for next generation multime...
Hybrid Access Network Integrated With Wireless Multilevel Vector and Wired Baseband Signals Using Frequency Doubling and No Optical Filtering
EXPERIMENTAL SETUP optical power Wireless Multilevel Vector
2011/11/17
FIBER-TO-THE-x (FTTx) have been widely constructed for high data rate wired services to provide triple-play services including voice, data, and video [1]. On the other hand, radio-over-fiber (RoF) tec...
WITH THE accelerated development of wireless communications,efficient and cost-effective methodsof generating and transmitting microwave/millimeter-wave
signals are of the utmost importance. The gene...
Hybrid Optical Beam-Former in Receiver Mode
Chirped Fiber Grating Group Delay Ripple Microwave Photonics Optical Phased Array Antennas
2013/1/30
In this paper, an optical beam-former in receiving mode has been proposed and experimentally demonstrated. The requirement in system's hardware has been dramatically reduced using a hybrid approach be...
Characterization of the Optical Properties of Heavy Metal Ions Using Surface Plasmon Resonance Technique
Surface Plasmon Resonance Optical Propertie Heavy Metal Ions
2013/1/30
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...
Optical Properties of the Coupling Interface for Planar Optical Waveguides
Planar Optical Waveguide Coupling Interface Beam Propagation Optical Property
2013/1/30
Planar optical waveguides are the key elements in a modern, high-speed optical network. An important problem facing the optical fiber communication system, specifically planar optical waveguides, is c...
Anti-Spoof Reliable Biometry of Fingerprints Using En-Face Optical Coherence Tomography
Optical Coherence Tomography, En-Face OCT, Fingerprints, Biometry, High Resolution
2013/1/30
Optical coherence tomography (OCT) is a relatively new imaging technology which can produce high resolution images of three-dimensional structures. OCT has been mainly used for medical applications su...
Extraordinarily high spectral sensitivity in refractive index sensors using multiple optical modes
Sensors Surface plasmons Resonators
2015/8/10
The extraordinary spectral sensitivity of surface plasmon resonance (SPR) sensors is commonly attributed to the modal overlap or unique dispersion of surface plasmons. In contrast to this belief, we s...
Nonvolatile bistable all-optical switch from mechanical buckling
Nonvolatile bistable all-optical switch mechanical buckling
2015/8/10
We propose a nonvolatile all-optical bistable optomechanical switch comprising two parallel buckling waveguides. The bistability comes from mechanical buckling so the operation of the switch does not ...
Complete All-Optical Silica Fiber Isolator via Stimulated Brillouin Scattering
Brillouin scattering electrostriction optical fi bers optical isolators.
2015/8/10
This study demonstrates the theoretical operation of an all-optical silica fiber isolator using stimulated Brillouin scattering. Two pump sources that copropagate through a double-mode fib...
Ultracompact nonreciprocal optical isolator based on guided resonance in a magneto-optical photonic crystal slab
nonreciprocal optical isolator guided resonance magneto-optical photonic crystal slab
2015/8/10
We design an ultracompact optical isolator with normal incident geometry that operates with a bandwidth that is substantial for a device of this size. For operation in a telecommunication wavelength o...
Optical Fiber Link with 1E-19 frequency stability using a Planar-Waveguide External Cavity Laser Diode
Optical Fiber Link 1E-19 frequency Planar-Waveguide External Cavity Laser Diode
2011/8/3
Abstract: We compare the performances of a compact planar-waveguide external cavity laser (ECL) and a traditional fiber laser (FL) frequency locked to a Fabry-P\'erot cavity and demonstrate the possib...
First-Principles Study of the Optical Properties of SrHfO3
Optical Properties, SrHfO3, WIEN2k, FP-LAPW, DFT, GGA
2013/1/30
The optical properties of SrHfO3,were studied by first principle using the density functional theory.The dielectric functions and optical constants are calculated using the full potential–linearized a...
ZnSe / ZnS Quantum-Dot Semiconductor Optical Amplifiers
Linear Absorption Coefficient Linear Emission Coefficient Rate Equations (Res) Noise Figure
2013/1/30
ZnSe quantum dot (QD) semiconductor optical amplifier (SOA) is studied theoretically using net gain for linear Absorption coefficient and linear emission and these results are used to calculate noise ...