Time-Domain Large-Signal Modeling of Traveling
... be modulated through carrier injection (in the forward bias condition) or depletion (in the reverse bias condition). Because the speed of carrier injection is limited by carrier lifetimes (less than 1 GHz), high-speed SiP modulators typically operate in the depletion mode. Optical modulation is achi ...
... be modulated through carrier injection (in the forward bias condition) or depletion (in the reverse bias condition). Because the speed of carrier injection is limited by carrier lifetimes (less than 1 GHz), high-speed SiP modulators typically operate in the depletion mode. Optical modulation is achi ...
A method to generate complex quasi-nondiffracting optical lat
... domain, produces the pattern featuring several confocal elliptical rings in a selected angular domain f1 < f < f2 , while in other angular domain the light field vanishes almost completely [Figs. 3(a) and 3(b)]. The symmetry of the Mathieu pattern for f1 < f < f2 is almost unaffected by removal of p ...
... domain, produces the pattern featuring several confocal elliptical rings in a selected angular domain f1 < f < f2 , while in other angular domain the light field vanishes almost completely [Figs. 3(a) and 3(b)]. The symmetry of the Mathieu pattern for f1 < f < f2 is almost unaffected by removal of p ...
Spontaneous, stimulated, coherent and incoherent nonlinear wave
... The optical signals are broadly classified as either stimulated where the signal is generated in the direction of an existing strong classical field, or spontaneous where it is generated in a new direction i.e. the detected mode is initially in the vacuum state. The next layer of classification is into ...
... The optical signals are broadly classified as either stimulated where the signal is generated in the direction of an existing strong classical field, or spontaneous where it is generated in a new direction i.e. the detected mode is initially in the vacuum state. The next layer of classification is into ...
1.5 MB
... Fig. 6. The interference calculated numerically for positive (a) and negative (b) optical vortex. An optical vortex (positive (c), negative (d)) was introduced into laser beam after reflection from a spatial light modulator and the beam passed through the measurement system shown in Fig. 5. ...
... Fig. 6. The interference calculated numerically for positive (a) and negative (b) optical vortex. An optical vortex (positive (c), negative (d)) was introduced into laser beam after reflection from a spatial light modulator and the beam passed through the measurement system shown in Fig. 5. ...
Physics and Computation of Aero-Optics
... predominantly in the axial (z) direction with slowly varying amplitude. It is customary to invoke the paraxial approximation, which assumes U (x, y, z) = A(x, y, z) exp(−ikz) and |∂ 2 A/∂z 2 | ≪ |k∂A/∂z|, where k = ω/c∞ is the optical wavenumber in the free stream. This leads to the parabolized wave ...
... predominantly in the axial (z) direction with slowly varying amplitude. It is customary to invoke the paraxial approximation, which assumes U (x, y, z) = A(x, y, z) exp(−ikz) and |∂ 2 A/∂z 2 | ≪ |k∂A/∂z|, where k = ω/c∞ is the optical wavenumber in the free stream. This leads to the parabolized wave ...
A Michelson interferometric technique for measuring refractive index
... The optical setup for the Michelson interferometer is shown schematically in Fig. 4. Light from a Helium Neon source S (wavelength of 633nm) is deflected through a mirror M3 and strikes the beam splitter B. The beam splitter is a half-silvered glass plate (silvered on the back side) which reflects ...
... The optical setup for the Michelson interferometer is shown schematically in Fig. 4. Light from a Helium Neon source S (wavelength of 633nm) is deflected through a mirror M3 and strikes the beam splitter B. The beam splitter is a half-silvered glass plate (silvered on the back side) which reflects ...
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paper__final
... (ASE) noise of EDFA. But when the ions or photons that are in the metastable state incident with light photons of suitable wavelength, they fall back to the ground state emitting photons having same phase, frequency and travel in the same direction as the photons of the incident wave. This is called ...
... (ASE) noise of EDFA. But when the ions or photons that are in the metastable state incident with light photons of suitable wavelength, they fall back to the ground state emitting photons having same phase, frequency and travel in the same direction as the photons of the incident wave. This is called ...
تحليل التوليد الفائق المســـــــتمر في الياف البلورة
... d 1 m , 1.4 m which gives 0 865nm . If we look at the cases of Fig.(3), they represent the presence of: SRS and 's and SRS and 2 , respectively. In Fig.(4a) we notice that the spectrum band is very narrow with little power (corresponding small order soliton ). The fact that P0 small ...
... d 1 m , 1.4 m which gives 0 865nm . If we look at the cases of Fig.(3), they represent the presence of: SRS and 's and SRS and 2 , respectively. In Fig.(4a) we notice that the spectrum band is very narrow with little power (corresponding small order soliton ). The fact that P0 small ...
Ans: Optical Fiber Communication System
... transmit light between the two ends of the fiber. The field of applied science and engineering concerned with the design and application of optical fibers is known as fiber optics. Optical fibers are widely used in fiber-optic communications, where they permit transmission over longer distances and ...
... transmit light between the two ends of the fiber. The field of applied science and engineering concerned with the design and application of optical fibers is known as fiber optics. Optical fibers are widely used in fiber-optic communications, where they permit transmission over longer distances and ...
Introduction - Strathprints
... which lack bulk symmetry and monitoring events such as sub-monolayer formation and surface reconstruction. Here, the development of a model that can be used to quantitatively describe the enhanced SH signal observed in the presence of an anodic oxide film on a non-centrosymmetric substrate, Hg1xCdx ...
... which lack bulk symmetry and monitoring events such as sub-monolayer formation and surface reconstruction. Here, the development of a model that can be used to quantitatively describe the enhanced SH signal observed in the presence of an anodic oxide film on a non-centrosymmetric substrate, Hg1xCdx ...
Fabrication of Surface Plasmon Resonators by Nanoskiving Single
... Morphology of Microplates and Nanowires. The singlecrystalline gold microplates obtained from the reaction and deposition step consisted of hexagonal, triangular, and ribbon-like structures with diameters ranging from 1 to 40 µm (Figure 2A). The thickness of these microstructures was usually between ...
... Morphology of Microplates and Nanowires. The singlecrystalline gold microplates obtained from the reaction and deposition step consisted of hexagonal, triangular, and ribbon-like structures with diameters ranging from 1 to 40 µm (Figure 2A). The thickness of these microstructures was usually between ...
Components of Optical Networks
... sources for EDFA and Raman amplification (higher power is required). Semiconductor lasers are the most commonly used, essentially they are semiconductor optical amplifiers with positive feedback (very effective and efficient). Erbium lasers are EDFAs positively fed back but need pumping source (semi ...
... sources for EDFA and Raman amplification (higher power is required). Semiconductor lasers are the most commonly used, essentially they are semiconductor optical amplifiers with positive feedback (very effective and efficient). Erbium lasers are EDFAs positively fed back but need pumping source (semi ...
High-speed and high-efficiency travelling wave single
... the large area mismatch between silicon and NbN, the real parts of the effective refractive index (as obtained from COMSOL simulations) of the bare and NbN-covered waveguides are identical within 0.4%. Therefore, the optical mode experiences a negligible change in spatial expansion, resulting in a s ...
... the large area mismatch between silicon and NbN, the real parts of the effective refractive index (as obtained from COMSOL simulations) of the bare and NbN-covered waveguides are identical within 0.4%. Therefore, the optical mode experiences a negligible change in spatial expansion, resulting in a s ...
Nanowire Grid Polarizers for Mid- and Long-Wavelength
... applications ranging from imaging and displays to communications and scientific instrumentation. The WGP typically consists of an array of metallic lines with sub-wavelength pitch supported by a transparent substrate. Wire grid structures are known to be effective as infrared polarizers with short o ...
... applications ranging from imaging and displays to communications and scientific instrumentation. The WGP typically consists of an array of metallic lines with sub-wavelength pitch supported by a transparent substrate. Wire grid structures are known to be effective as infrared polarizers with short o ...
Extended depth-of-field iris recognition system for a
... field of view determines the spatial extent of the scene acquired by the sensor. Depth of field determines how far a planar object can move away from the best focus position and still be imaged without focus errors. The exposure period is defined as the detector integration time while acquiring an i ...
... field of view determines the spatial extent of the scene acquired by the sensor. Depth of field determines how far a planar object can move away from the best focus position and still be imaged without focus errors. The exposure period is defined as the detector integration time while acquiring an i ...
Noise analysis of spectrometers based on speckle pattern
... spectral-to-spatial mapping could also benefit the speckle-based spectrometer. If the signal is strong enough to fill the well depth of the detector, then the speckle-based spectrometer allows many more total photoelectrons to be created by spreading the signal over all the detectors, as indicated i ...
... spectral-to-spatial mapping could also benefit the speckle-based spectrometer. If the signal is strong enough to fill the well depth of the detector, then the speckle-based spectrometer allows many more total photoelectrons to be created by spreading the signal over all the detectors, as indicated i ...
Influence of a thin metal layer on a beam propagation in
... The development of optical fibre technology over the last century was significant. Fibre technology can be divided into two parts: telecommunication and non−telecommuni− cation. The telecommunication part is a good compound and now many of guided researches are oriented on capac− ity increase, optim ...
... The development of optical fibre technology over the last century was significant. Fibre technology can be divided into two parts: telecommunication and non−telecommuni− cation. The telecommunication part is a good compound and now many of guided researches are oriented on capac− ity increase, optim ...