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Glossary

Search for glossary terms (regular expression allowed)
Term Main definition
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.
Snap fit refers to a type of hood or boot with two sides that snap together over the connector to protect the pin connections.

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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.
A type of contact which on the termination side of the contact is shaped like a bucket or a cup in order that a small amount of solder may be dropped and soldered to the wire.

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Solid

Cable who’s conductor is made up of 1 solid strand of copper

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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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