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Slab dielectric waveguide
| Fiber Optic Glossary |
An electromagnetic waveguide (a) that consists solely of dielectric materials, (b) in which the dielectric propagation medium has a rectangular cross section, (c) that has a width, thickness, and refractive indices that determine the operating wavelength and the modes the guide will support beyond the equilibrium length, (d) that may be cladded, protected, distributed, and electronically controllable, and (e) that may be used in various applications, such as in integrated optical circuits (iocs) in which their shape is geometrically more convenient than the optical fibers that are circular in cross section, that are used in fiber optic cables for long-distance transmission.
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Electromagnetic, английский
Dielectric, английский
- An insulating (non-conductive) material. found between the inner core and outer shield of a co-axial cable.
- Материал, не проводящий электрический ток. используется для изготовления оптоволоконных кабелей, не подвергается воздействию электрических и электромагнитных полей (в том числе и полей большой мощности)
- A nonconductor of direct electric current.
- An insulating (nonconductive) material.
- A non-conductive insulator material between the center conductor and shield of coaxial cable. the dielectric constant determines the propagation velocity.
- A material that acts as an insulator.
Propagation, английский
- Прохождение, распространение (напр, радиоволн)
- An act of causing something to spread or multiply
- Распространение; размножение; продвижение; передача
- Распространение
- The process of distributing an index from a content index server to one or more web servers for the purposes of providing search.
- Advancement of a wave through a medium.
- Advancement of energy or a crack through a medium. see also brittle crack propagation; ductile crack propagation; fatigue crack propagation.
- Movement of a wave through a medium.7,21
Refractive, английский
Wavelength, английский
- Light is made up of electromagnetic waves; wavelength is the crest (peak)-to-crest distance between two adjacent waves.
- Для оптических сетевых устройств длина волны светового потока составляет 850, 1300, 1310 и 1550 нм
- The optical term for frequency. fiber optics generally uses the 850 nm, 1300/1310 nm, 1550 nm and 1625 nm wavelengths for transmission purpose due to the marriage of performance with light sources, optical fibers, and optical detector technologies
- Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same. tel 203•377•8282 fax 203•378•2457 e-mail res_sales@oriel.com url www.oriel.com 9-17 polarization lenses optics prisms & filters beam splitters windows, substrates & mirrors properties of optical coatings optical materials
- The length of the light wave, usually measured from crest to crest, which determines its color. common units of measurement are the micrometer (micron), the nanometer, and the angstrom unit.
- The spatial period of a plane wave
- The distance between "waves" in the electromagnetic field, specified as angstroms or nanometers.
- The distance an electromagnetic wave travels in the time it takes to oscillate through a complete cycle. wavelengths of light are measured in nanometers (10-9 m) or micrometers (10-6m).
- The linear distance occupied by one complete cycle of vibration of an energy form from any given point to the next point characterized by the same phase.
- For light waves or sound waves, the distance between two successive points of a periodic wave in the direction of propagation, in which the oscillation has the same phase; the distance the wave travels in one period. for light waves three common units of wavelength are: micrometer, nanometer, and angstrom. wave molding, oundy molding, swelled chamfer, undulating molding, undy
- Длина волны wax 1. воск 2. парафин 3. пластичная глина way 1. путь; дорога 2. проход; переход 3. колея 4. направление, сторона 5. амер, расстояние
- The physical length between corresponding points of successive cycles of a wave. low frequencies have long wavelengths; high frequencies have short wavelengths.
- The distance between the crests of a wave in a radio signal, measured as the speed of light divided by the frequency in- hz.
- The distance between one peak of a wave and the next peak
- Light is measured by its wavelength (in nanometers) or frequency (in hertz). one wavelength. equals the distance between two successive wave crests.
- The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation.
- Distance between repeating values of a wave — for example, the distance from one peak to the next peak on a sine wave. wavelength is a fundamental descriptor when discussing wave behavior, system sensitivity, and diffraction effects.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave. wavelength is generally measured in nanometers when considering uv-a radiation (for example, 365 nm). compare frequency.
- Distance between repeating units of a wave. for example, the distance from one peak to the next peak.
- Distance needed in the propagation direction for a wave to go through a complete cycle.7,21
Equilibrium, английский
- Равновесие
- The state of being equally balanced; a state of a body in which the forces acting on it are equally balanced.
- A state of balance
- Равновесие, равновесное состояние ~ of forces равновесие сил
- Literally balance, here balance of forces acting on each other. in a static equilibrium forces compensate each other so that the system is motionless, e.g., a scale at rest. if forces do not compensate each other fully at one instant in time, a system moves until it encounters higher-order constraints, e.g, after starting an engine, it accelerates to a point at which energy supply and work load plus friction are again in balance. in such a dynamic equilibrium, forces complement each other dynamically so that the system`s behavior is repetitive, predictable, does not generate new states and the trajectory follows a regular cycle. e.g., mass production at a well-worked out assembly line, sterotypical conversation within a 28 family, routine administrative procedures. a system may have several distinct equilibria (->polystability). a system in equilibrium conveys no information. one important equilibrium property is stability. homeostasis is a process of interaction favouring an equilibrium.
- The stable state of the system. see: attractor.
- A state of balance in which there is no tendency for change. see disequilibrium.
Distributed, английский
- Распредел
- Распределенный; рассредоточенный
- Сотри t i ng en v i ronmen t распределенные вычисления
- New treasury issues in dealers` hands are said to be distributed.
Controllable, английский
Integrated, английский
- Communication, navigation, identification (system) комплексная [объединенная] система связи, навигации и опознавания
- Strapdown/air data sensor (system) кохмплексная система бесплатформенных инер- циальных датчиков и датчиков воздушных сигналов
Convenient, английский
Transmission, английский
- Passage of electromagnetic radiation through a medium.
- Transmisión
- The property in a merchantman, or a share therein, transmitted in
- Передача; привод; коробка передач; трансмиссия; прохождение; распространение ~ of loads передача нагрузок
- The transport of high voltage electricity. this is achieved with a transmission network (or grid). generally the network will connect large generators to lower voltage distribution networks where it will be transported to the majority of electricity consumers. alternatively, large scale electricity users may connect directly to the transmission network. management of transmission is a natural monopoly due to the economies of scale inherent to it. transmission system operator (tso) (also transmission network operator-
- The sending of information over a communications line or a circuit.
- The transportation of electric energy in bulk from a source or sources of supply to other systems or parts of a single system.
- Transfer of pathogens from one host to another
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Lambertian emitter, английский
An emitter that radiates according to lambert’s cosine law, which states that the radiance of certain idealized surfaces depends on the viewing angle of the surface. the radiant intensity of such a surface is maximum normal to the surface and decreases in proportion to the cosine of the angle from the normal. given by:
In-line amplifier, английский
An edfa or other type of amplifier placed in a transmission line to strengthen the attenuated signal for transmission onto the next, distant site. in-line amplifiers are all-optical devices.
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