|SOA Semiconductor optical amplifier||
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A device used to convert light energy into electrical current.
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Solder Contact, - Also known as Solder Cup, Solder Bucket.
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A laser whose active medium is a glass or crystal.
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A special type of light pulse used in fiber-optic communications in combination with optical amplifiers to help carry a signal longer distances.
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|SONET Synchronous Optical Network||
The underlying architecture in most systems, which uses cells of fixed length.
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In fiber optics, the device that converts the information carried by an electrical signal to an optical signal for transmission over an optical fiber. A fiber-optic source may be a light-emitting diode or laser diode.
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The address of the station that sent a packet, usually found in the source area of a packet header. In the case of LAN technologies such as Ethernet and Token Ring, the source address is the MAC (media access control) address of the sending host.
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(1) The difference between wavelengths at which the radiant intensity of illumination is half its peak intensity. (2) Radiance per unit wavelength interval.
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A measure of the extent of a spectrum. The range of wavelengths within a light source. For a source, the width of wavelengths contained in the output at one half of the wavelength of peak power. Typical spectral widths are between 20nm and 170nm for an LED and between 1nm and 5nm for a laser diode.
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Frequencies that exist in a continuous range and have a common characteristic. A spectrum may be inclusive of many spectrums; the electromagnetic radiation spectrum includes the light spectrum, the radio spectrum, and the infrared spectrum.
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|Speed of light (c)||
In a vacuum, light travels 299,800,000 meters per second. This is used as a reference for calculating the index of refraction.
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|SPID Service profile identifier||
The ISDN identification number issued by the phone company that identifies the ISDN terminal equipment attached to an ISDN line.
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