ChromatiC dispersion
... that the dispersion effects cancel; such compensation is ultimately limited by nonlinear effects such as self-phase modulation, which interact with dispersion to make it very difficult to undo. ...
... that the dispersion effects cancel; such compensation is ultimately limited by nonlinear effects such as self-phase modulation, which interact with dispersion to make it very difficult to undo. ...
Vacuum-ultraviolet to infrared supercontinuum in hydrogen
... are launched into the fiber using an achromatic lens. Two chirped mirrors compensate for pulse lengthening in air. (b) Diagnostics. Upper, the VUV spectrum is measured with an evacuated scanning monochromator equipped with a scintillator and a photomultiplier tube (PMT); lower, the UV-NIR and DUV sp ...
... are launched into the fiber using an achromatic lens. Two chirped mirrors compensate for pulse lengthening in air. (b) Diagnostics. Upper, the VUV spectrum is measured with an evacuated scanning monochromator equipped with a scintillator and a photomultiplier tube (PMT); lower, the UV-NIR and DUV sp ...
History of Fiber Optics
... The light in a fiber-optic cable travels through the core (hallway) by constantly bouncing from the cladding (mirror-lined walls), a principle called total internal reflection. Because the cladding does not absorb any light from the core, the light wave can travel great distances. However, some of ...
... The light in a fiber-optic cable travels through the core (hallway) by constantly bouncing from the cladding (mirror-lined walls), a principle called total internal reflection. Because the cladding does not absorb any light from the core, the light wave can travel great distances. However, some of ...
Synchronization of Micromechanical Oscillators Using Light
... modes. This mutual feedback between light and sound, proposed first in the context of gravitational wave detectors [24], has been explored to amplify or cool down mechanical modes of mesoscopic structures [25]. Recent work shows that when such feedback is negative, cooling of the mechanical mode to ...
... modes. This mutual feedback between light and sound, proposed first in the context of gravitational wave detectors [24], has been explored to amplify or cool down mechanical modes of mesoscopic structures [25]. Recent work shows that when such feedback is negative, cooling of the mechanical mode to ...
6,
... lies in the fact that the former works by diffraction and not by refraction or reflection as is the case in the latter. As a consequence of this, HOEs have some special characteristics such as great chromatic dispersion and in the case of thick holograms, strong angular dependence of the diffracted ...
... lies in the fact that the former works by diffraction and not by refraction or reflection as is the case in the latter. As a consequence of this, HOEs have some special characteristics such as great chromatic dispersion and in the case of thick holograms, strong angular dependence of the diffracted ...
Strain state in silicon structures for microprocessor technology M.
... often a reliability issue, e.g. in interconnect lines and dielectric films where effort is made to avoid undesired stress. On the other hand, positive effects of strain are employed in CMOS transistor technology. The reason is a significant performance gain achievable by introducing strained films i ...
... often a reliability issue, e.g. in interconnect lines and dielectric films where effort is made to avoid undesired stress. On the other hand, positive effects of strain are employed in CMOS transistor technology. The reason is a significant performance gain achievable by introducing strained films i ...
BMS 631 - Lecture 4
... – Direction change of a ray of light passing from one transparent medium to another with different optical density. A ray from less to more dense medium is bent perpendicular to the surface, with greater deviation for shorter wavelengths ...
... – Direction change of a ray of light passing from one transparent medium to another with different optical density. A ray from less to more dense medium is bent perpendicular to the surface, with greater deviation for shorter wavelengths ...
... in this operation to achieve this demand. Several types of encoding procedures have been already proposed and demonstrated for the realization of all optical binary half-adder and half-subtractor by various groups of scientists using different optical non-linear properties of the material [3]-[7]. P ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... Abstract: Practically in all kind of communication system, more or less losses are involved. To make the system more efficient, it is needed to identify and trace the faults & losses In optical fiber communication, optical time domain reflectometry (OTDR) is a commonly used technique for characteriz ...
... Abstract: Practically in all kind of communication system, more or less losses are involved. To make the system more efficient, it is needed to identify and trace the faults & losses In optical fiber communication, optical time domain reflectometry (OTDR) is a commonly used technique for characteriz ...
NewPresentationii22
... • Atoms replace role of the light. • Atom-optical elements replace mirrors and beam splitters ...
... • Atoms replace role of the light. • Atom-optical elements replace mirrors and beam splitters ...
Gradient and Scattering Forces on a Kerr Nanosphere
... of the trapping (gradient) force is plotted against several experimental parameters, e.g., incident beam power, axial distance, sphere radius, wavelength, and refractive index difference between the surrounding liquid and the nanosphere. Results have shown that the Kerr effect on the nanosphere can ...
... of the trapping (gradient) force is plotted against several experimental parameters, e.g., incident beam power, axial distance, sphere radius, wavelength, and refractive index difference between the surrounding liquid and the nanosphere. Results have shown that the Kerr effect on the nanosphere can ...
Soliton pairs in a fiber laser: from anomalous to normal average
... pairs spiralled towards a ±π/2 phase-locked state, the dynamical evolution of pulse pairs in the present normal dispersion case is faster in terms of cavity round trips, and the attractor found is characterized by a π-phase difference. According to the values of the parameters used, one or several a ...
... pairs spiralled towards a ±π/2 phase-locked state, the dynamical evolution of pulse pairs in the present normal dispersion case is faster in terms of cavity round trips, and the attractor found is characterized by a π-phase difference. According to the values of the parameters used, one or several a ...
Chapter 2 Introduction to Waveguide and Bragg Grating Theory 2.1
... In general the properties of channel waveguides cannot be analytically evaluated without turning to numerical methods or making simplifying assumptions. Various methods of differing complexity and flexibility are possible but owing to its straightforward application the method selected to model simp ...
... In general the properties of channel waveguides cannot be analytically evaluated without turning to numerical methods or making simplifying assumptions. Various methods of differing complexity and flexibility are possible but owing to its straightforward application the method selected to model simp ...
Comparison of two-color methods based on wavelength and
... The refractive index of air can significantly affect length measurements because the refractive index of air is a function of several air parameters such as temperature, pressure, humidity, and CO2 concentration. For example, when the temperature increases by 1◦ C, the optical length decreases by ap ...
... The refractive index of air can significantly affect length measurements because the refractive index of air is a function of several air parameters such as temperature, pressure, humidity, and CO2 concentration. For example, when the temperature increases by 1◦ C, the optical length decreases by ap ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.