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Spectral width
| Fiber Optic Glossary |
A measure of the extent of a spectrum. for a source, the width of wavelengths contained in the output at one half of the wavelength of peak power. typical spectral widths are 50 to 160 nm for an led and less than 5 nm for a laser diode.
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Spectral, английский
Prefix used to denote a variable that changes as a function of wavelength.
Spectral absorptance, английский
Spectral absorption; factor, английский
Spectral analysis, английский
A form of time series analysis that treats the observed sequence of events or measurements as being analogous to a radio or similar signal. the signal is assumed to be a mix of "pure" signals at various frequencies and the model estimates the power (amplitude) at the various frequencies. typically the signals are represented by a fourier series, a mixture of sine and cosine functions. other basis functions can also be used, such as hadamard functions (which take on values of 1 and -1) or wavelets. see also: time series analysis, box-jenkins analysis.
Spectral ballistic camera, английский
Спектральная баллистическая фотокамера
Spectral beam combining, английский
A class of methods for beam combining, based on wavelength-sensitive beam combiners
Spectral brightness, английский
Brightness per unit optical bandwidth
Spectral color analysis technique, английский
Метод цветоспектрального анализа
Spectral coverage, английский
The number of spectral bands and their associated spectral resolution needed to faithfully extract target information.
Spectral curve, английский
A color's "fingerprint" (a visual representation of a color's spectral data. a spectral curve is plotted on a grid comprised of a vertical axis); and a horizontal axis (the visible spectrum of wavelengths. the percentage of reflected light is pl
Spectral data, английский
The most precise description of the color of an object. an object's color appearance results from light being changed by an object and reflected to a viewer. spectral data is a description of how the reflected light was changed. the percentage of reflecte
Spectral de-emphas i s, английский
Устранение частотных предыскажений ср. spectral emphasis
Spectral distribution, английский
Spectral efficiency, английский
- Спектральная эффективность см. rse
- The number of data bits per second that can be transmitted in a one hertz bandwidth range.
Spectral emphas i s, английский
Введение частотных предыскажений cp. spectral de-empha- s i s
Spectral gamma-ray log, английский
Spectral interferometry, английский
A class of interferometric methods, where interference in the frequency domain is exploited
Spectral irradiance, английский
- Measure of energy emitted by a radiation source as function of wavelength. units of spectral irradiance are watts per square meter and are often plotted versus wavelength.
- Measure of energy emitted by a radiation source as function of wavelength. units of spectral irradiance are in watts per meter squared and are often plotted versus wavelength.
Spectral luminous efficiency, английский
Spectral responsivity.
Spectral method of eddy current nondestructive testing, английский
Spectral notch, английский
Минимум кривой спектра
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
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Adapter sleeve, английский
A mechanical fixture within an adapter body that aligns and holds two terminated fiber connectors. adapter sleeve material is typically phosphor bronze, ceramic or polymer.
Lec (local exchange carrier), английский
A local telephone company, i.e., a communications common carrier that provides ordinary local voice-grade telecommunications service under regulation within a specified service area.
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