Introduction to optical fibers
... The single mode fibers do not exhibit intermodal dispersion (which will be discussed in Chapter 3), thus the light pulse reaches the end of the fiber only slightly distorted. Therefore, the single mode fiber is suitable for long-distance transmission since the light pulse can be transmitted without ...
... The single mode fibers do not exhibit intermodal dispersion (which will be discussed in Chapter 3), thus the light pulse reaches the end of the fiber only slightly distorted. Therefore, the single mode fiber is suitable for long-distance transmission since the light pulse can be transmitted without ...
Interference and Interferometry [Pedrotti^3 Ch. 7 & Ch. 8]
... As shown on previous pages, most available light sources emit a range wavelengths. For many photonic applications it is desirable to have a "monochromatic" (ideal) point light source. An ideal light source would emit only one exact frequency f0 and its physical size would be infinitely small (an ide ...
... As shown on previous pages, most available light sources emit a range wavelengths. For many photonic applications it is desirable to have a "monochromatic" (ideal) point light source. An ideal light source would emit only one exact frequency f0 and its physical size would be infinitely small (an ide ...
OPTICAL TWEEZERS: Characterization and Systems
... mathematics. This work investigates a modern tool of micro-manipulation of microscopic particles that is used primarily by bio-physicists and bio-chemists for single cell, single molecule studies. This tool called the Optical Tweezers can trap microscopic dielectric particles using radiation pressur ...
... mathematics. This work investigates a modern tool of micro-manipulation of microscopic particles that is used primarily by bio-physicists and bio-chemists for single cell, single molecule studies. This tool called the Optical Tweezers can trap microscopic dielectric particles using radiation pressur ...
Modeling of Lithium Niobate Ridge Waveguides - Rays
... Waveguides are used in order to guide electromagnetic waves and an example of a waveguide is optical fibers. Problems arise with waveguides when propagation losses are induced, and the aim of this study is to model optical guidance, field profiles and effective indices in ridge type waveguides and p ...
... Waveguides are used in order to guide electromagnetic waves and an example of a waveguide is optical fibers. Problems arise with waveguides when propagation losses are induced, and the aim of this study is to model optical guidance, field profiles and effective indices in ridge type waveguides and p ...
Evanescent Waves in the Near- and the Far Field
... The advantage of the fact that each partial wave in the angular spectrum is a solution of the free-space Maxwell equations can not be overemphasized. For instance, when the source is located near an interface, each partial wave reflects and refracts in the usual way, and this can be accounted for b ...
... The advantage of the fact that each partial wave in the angular spectrum is a solution of the free-space Maxwell equations can not be overemphasized. For instance, when the source is located near an interface, each partial wave reflects and refracts in the usual way, and this can be accounted for b ...
The Optical Resonator
... § All the modes would have comparable Q in the 3D resonator – To be avoided in a laser as it would cause all the atoms to emit power into a large number of modes (would differ in their frequency and spatial characteristics) § Large, open resonators consisting of opposite flat/curved reflectors mus ...
... § All the modes would have comparable Q in the 3D resonator – To be avoided in a laser as it would cause all the atoms to emit power into a large number of modes (would differ in their frequency and spatial characteristics) § Large, open resonators consisting of opposite flat/curved reflectors mus ...
Scattering of a Plane Electromagnetic Wave by a Small Conducting
... is the Poynting vector (in Gaussian units) and c is the speed of light in vacuum. Because the incident wavelength is large compared to the radius of the cylinder, and the wave is normally incident, the incident fields are essentially uniform over the cylinder, and we might suppose the induced fields n ...
... is the Poynting vector (in Gaussian units) and c is the speed of light in vacuum. Because the incident wavelength is large compared to the radius of the cylinder, and the wave is normally incident, the incident fields are essentially uniform over the cylinder, and we might suppose the induced fields n ...
Optical Waveguide Modes
... A system like that shown in Fig. 2.3 is particularly useful for analysis of mode shapes in semiconductor waveguides, which generally support only one or two modes because of the relatively small Δn at the waveguide-substrate interface. Generally, the position of the focused input laser beam can be m ...
... A system like that shown in Fig. 2.3 is particularly useful for analysis of mode shapes in semiconductor waveguides, which generally support only one or two modes because of the relatively small Δn at the waveguide-substrate interface. Generally, the position of the focused input laser beam can be m ...
Creation of gap solitons in Bose
... in the gaps associated with avoided crossings. Gap solitons have previously been studied in a variety of physical contexts, but particularly in nonlinear optics [12]. They were also studied in the framework of nonlinear atom optics [7], but in this case the two states involved are connected by an op ...
... in the gaps associated with avoided crossings. Gap solitons have previously been studied in a variety of physical contexts, but particularly in nonlinear optics [12]. They were also studied in the framework of nonlinear atom optics [7], but in this case the two states involved are connected by an op ...
1.5% root-mean-square flat-intensity laser beam
... the lowest potential region. Finally, in our application, we can sacrifice some degree of conversion efficiency from the input Gaussian profile beam to the desired profile in order to achieve a high degree of beam shape control and a minimum root-meansquare (RMS) deviation from the targeted beam sha ...
... the lowest potential region. Finally, in our application, we can sacrifice some degree of conversion efficiency from the input Gaussian profile beam to the desired profile in order to achieve a high degree of beam shape control and a minimum root-meansquare (RMS) deviation from the targeted beam sha ...
Spatiotemporal pattern formation in
... 21. As long as u E 0 u is smaller than a critical value, there is a region of stability for any transverse mode. At a critical value E 0 c ' 21.7E d a finite band of transverse modes around a critical mode fK c 2 ' 3.6w 0 22 is predicted to become unstable through a Hopf bifurcation with a character ...
... 21. As long as u E 0 u is smaller than a critical value, there is a region of stability for any transverse mode. At a critical value E 0 c ' 21.7E d a finite band of transverse modes around a critical mode fK c 2 ' 3.6w 0 22 is predicted to become unstable through a Hopf bifurcation with a character ...
Measuring the Modulation Transfer Function of
... generate than sinewave targets, while the ratio of the modulation of the scanned image to the modulation of the original image is defined as contrast transfer function (CTF). It is different from the MTF. There are formulas to transfer between the MTF and the CTF.4 In addition, we also can use the F ...
... generate than sinewave targets, while the ratio of the modulation of the scanned image to the modulation of the original image is defined as contrast transfer function (CTF). It is different from the MTF. There are formulas to transfer between the MTF and the CTF.4 In addition, we also can use the F ...
Diffraction - ICT for IST
... Dimension of slits/obstacles and wavelength It also seems very effective to systematically present diffraction phenomena using both obstacles and openings (slits) and to emphasize the important relation between the size (dimension „u‟) of obstacles (or slits) and the wavelength (lambda). Again the s ...
... Dimension of slits/obstacles and wavelength It also seems very effective to systematically present diffraction phenomena using both obstacles and openings (slits) and to emphasize the important relation between the size (dimension „u‟) of obstacles (or slits) and the wavelength (lambda). Again the s ...