Glossary
Term | Main definition |
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SMA Surface mount assembly connector | An optical fiber cable connector that is a threaded type connector. The SMA 905 version is a straight ferrule design, whereas the SMA 906 is a stepped ferrule design.
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SMB | SMB, Sub miniature Version B – Coaxial connector, the second design to SMA. However smaller than the SMA with a snap on connection performance to 4GHz
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SMC | SMC, Sub miniature Version C – Coaxial connector, the third design to SMA. Threaded 10-32 interface connection however allows a 10GHz performance.
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SMF Single-mode fiber | Optical-fiber cable with a small core, usually between two and nine microns, which can support only one wavelength. It requires a laser source for the input because the acceptance cone is so small. The small core radius approaches the wavelength of the source. Singlemode optical-fiber cable is typically used for backbones and to transmit data over long distances.
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Snap Fit | Also known as Retro Fit.
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Sneak current |
A low-level current that is of insufficient strength to
trigger electrical surge protectors and thus may be able
to pass between these protectors undetected. The sneak
current may result from contact between communications
lines and AC power circuits or from power induction.
This current can cause equipment damage unless
secondary protection is used.
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SOA Semiconductor optical amplifier | A laser diode with optical fibers at each end instead of mirrors. The light from the optical fiber at either end is amplified by the diode and transmitted from the opposite end.
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Socket | Also Known as Female, Receptacle or Jack Where the plug is used in an adaptor configuration ie plug to socket our search term is M. Conversely a socket is F. Eg M-F
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Solar cell |
A device used to convert light energy into electrical
current.
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Solder Contact | Solder Contact, - Also known as Solder Cup, Solder Bucket.
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Solid |
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Solid-state laser |
A laser whose active medium is a glass or crystal.
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Soliton |
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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Source |
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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