- Amplified Spontaneous Emission (ASE): Unwanted noise that is generated by an optical amplifier. It can affect the quality of the signal and the overall performance of the fiber-optic network.
- Amplifier: A device that amplifies the light signal as it travels through a fiber-optic cable to overcome loss and dispersion.
- Bi-directional transceiver: A transceiver that can transmit and receive data over a single fiber-optic cable.
- Bullet Point List All Fiber Internet Terminology and Related Definitions.
- CFP (C Form-factor Pluggable) Transceiver: A compact and hot-pluggable device that is used to transmit and receive data over a fiber-optic cable, designed for 100G and higher data rates.
- Chromatic Dispersion (CD) : The spreading of different wavelengths of light as they travel through a fiber-optic cable. It can cause signal distortion and reduce the quality of the internet connection.
- Connector loss: The amount of light that is lost as it travels through a fiber-optic connector. This is measured in decibels (dB) and can affect the overall performance of the fiber-optic network.
- CWDM (Coarse Wavelength Division Multiplexing): A technology that allows multiple wavelengths of light to be transmitted over a single fiber-optic cable. It increases the capacity of the cable and allows for faster internet speeds.
- Dispersion Compensating Module (DCM): A device that is used to reduce the effects of chromatic dispersion in a fiber-optic network.
- Dispersion Compensation Fiber (DCF): A type of fiber that is designed to reduce the effects of chromatic dispersion in a fiber-optic network.
- Dispersion compensation: The process of reducing the spreading of light as it travels through a fiber-optic cable. This can be done using dispersion compensating fibers or devices such as Dispersion Compensating Modules (DCMs).
- Dispersion Slope Compensation (DSC): A technique to compensate for the slope of chromatic dispersion over a wide wavelength range.
- Dispersion: The spreading of light as it travels through a fiber-optic cable. This can cause signal distortion and reduce the quality of the internet connection.
- DWDM (Dense Wavelength Division Multiplexing): A technology that allows multiple wavelengths of light to be transmitted over a single fiber-optic cable. It increases the capacity of the cable and allows for faster internet speeds.
- DWDM SFP transceiver: A SFP transceiver that uses DWDM technology to transmit and receive data over a fiber-optic cable.
- EDFA (Erbium-Doped Fiber Amplifier): A type of optical amplifier that uses erbium-doped fibers to amplify signals in a fiber-optic cable. It is widely used in long-haul and high-capacity fiber-optic networks.
- EDFAs (Erbium-Doped Fiber Amplifiers) : A type of optical amplifier that uses erbium-doped fibers to amplify signals in a fiber-optic cable. It is widely used in long-haul and high-capacity fiber-optic networks.
- FEC (Forward Error Correction): A technique used to detect and correct errors that occur during the transmission of data over a fiber-optic cable.
- Fiber attenuation: The loss of power in a fiber optic signal over distance, measured in dB/km.
- Fiber Bragg Grating (FBG): A type of optical filter that is used to reflect or transmit specific wavelengths of light.
- Fiber dispersion: The spreading of a light pulse over distance due to the different group velocities of the various wavelengths making up the pulse, measured in ps/nm/km.
- Fiber Internet Terminology Definitions
- Fiber loss: The amount of light that is lost as it travels through a fiber-optic cable. This is measured in decibels (dB) and is affected by factors such as cable length, connector loss, and splice loss.
- Fiber optic attenuator: A device that reduces the power of an optical signal. It is used to match the power levels of different devices in a fiber-optic network.
- Fiber optic connector: A device that connects two fiber-optic cables together to form a continuous optical path.
- Fiber optic coupler: A device that splits or combines the light from multiple fiber-optic cables. It is used to distribute the signal to multiple devices in a fiber-optic network.
- Fiber optic internet: A type of internet service that uses fiber-optic cables to transmit data. It is known for its high speeds and reliability.
- Fiber optic isolator: A device that prevents unwanted light from entering a fiber-optic cable. It is used to protect sensitive optical components from damage.
- Fiber optic modem: A device that modulates and demodulates signals to be transmitted over a fiber-optic cable.
- Fiber optic switch: A device that directs the light from one fiber-optic cable to another. It is used to route the signal in a fiber-optic network.
- Fiber optic transceiver module : A device that houses both a transmitter and a receiver and allows communication over a fiber optic link.
- Fiber-optic cable: A cable made of glass or plastic fibers that uses light to transmit data. It can transmit data over longer distances and at higher speeds than traditional copper cables.
- Fiber-optic transceiver: A device that converts electrical signals into optical signals and vice versa. It is used to transmit data over a fiber-optic cable.
- Fiber-to-the-curb (FTTC): A type of fiber internet service that connects to a home or business via a fiber-optic cable that runs to a nearby distribution point, such as a utility pole.
- Fiber-to-the-home (FTTH): A type of fiber internet service that connects directly to a home or business. It is considered the fastest and most reliable type of internet service.
- Fiber-to-the-node (FTTN): A type of fiber internet service that connects to a home or business via a fiber-optic cable that runs to a nearby distribution point, such as a neighborhood cabinet.
- Gigabit internet: An internet service that offers speeds of 1 gigabit per second (Gbps) or higher. This is significantly faster than traditional broadband internet.
- Latency: The time it takes for a packet of data to travel from one point to another on the internet. In fiber-optic internet, latency is typically low, which means that the internet connection is fast and responsive.
- Multi-mode fiber: A type of fiber-optic cable that uses a larger diameter core to transmit light over shorter distances. It is less expensive than single-mode fiber but has lower bandwidth capacity.
- Nonlinear effects: Effects that occur in a fiber-optic cable when the intensity of the light is high. These effects can cause signal distortion and reduce the quality of the internet connection.
- OADM (Optical Add-Drop Multiplexer): A device that allows adding or dropping optical signals at different wavelengths without the need of manual reconfiguration.
- OAM (Operations, Administration, and Maintenance): The set of functions and activities that are required to manage and maintain a fiber-optic network.
- OCH (Optical Channel): The basic unit of an optical transport network. It consists of a single wavelength of light and its associated signal processing.
- OEO (Optical-Electrical-Optical) converter: A device that converts optical signals into electrical signals and vice versa. It allows for signal regeneration and routing in a fiber-optic network.
- OEP (Optical Ethernet Protection): A mechanism to protect the Ethernet service in case of any failure in the optical transport network.
- Optical Add-Drop Multiplexer (OADM): A device that allows adding or dropping optical signals at different wavelengths without the need of manual reconfiguration.
- Optical Amplifier: A device that amplifies the light signal as it travels through a fiber-optic cable without the need for electrical power at the receiving end. The common types of optical amplifiers are Erbium Doped Fiber Amplifier (EDFA) and Raman Amplifier.
- Optical Circulator: A device that directs light in a specific direction and isolates the signal from any reflections.
- Optical Distribution Network (ODN): The passive optical infrastructure of a PON network, which includes optical splitters and connectors.
- Optical Isolator: A device that prevents unwanted light from entering a fiber-optic cable. It is used to protect sensitive optical components from damage.
- Optical Line Terminal (OLT): The device that terminates the optical fiber line on the service provider side of a PON network.
- Optical Network Unit (ONU): The device that terminates the optical fiber line on the customer side of a PON network.
- Optical Switch: A device that redirects the optical signal to a different path.
- Optical Time-Domain Reflectometer (OTDR): A device used to test and measure the quality of a fiber-optic cable.
- OTDR (Optical Time-Domain Reflectometer): A device that uses time-domain reflectometry to measure the characteristics of a fiber-optic cable, such as attenuation, distance to faults, and reflectance.
- OTN (Optical Transport Network): A network that uses optical fibers to transport data over long distances. It is used by service providers to connect different parts of their networks and to provide high-bandwidth services to customers.
- Polarization Mode Dispersion (PMD): The spreading of different polarization modes of light as they travel through a fiber-optic cable. It can cause signal distortion and reduce the quality of the internet connection.
- Polarization-maintaining fiber (PMF): A type of fiber-optic cable that is designed to maintain the polarization of light as it travels through the cable.
- PON (Passive Optical Network): A type of fiber internet service that uses a passive optical splitter to distribute the internet signal to multiple homes or businesses.
- QSFP (Quad Small Form-factor Pluggable) Transceiver: A compact and hot-pluggable device that is used to transmit and receive data over four fibers.
- Raman Amplification: is a technology that uses the Raman effect to amplify signals in a fiber-optic cable. It can be used to increase the distance over which a signal can be transmitted and to boost the signal strength.
- ROADM (Reconfigurable Optical Add-Drop Multiplexer): A device that allows adding or dropping optical signals at different wavelengths without the need of manual reconfiguration.
- SFP (Small Form-factor Pluggable) Transceiver: A compact and hot-pluggable device that is used to transmit and receive data over a fiber-optic cable.
- Single-mode fiber: A type of fiber-optic cable that uses a small diameter core to transmit light over long distances. It can transmit data at higher speeds than multi-mode fiber.
- SONET (Synchronous Optical Network): A standard for transmitting digital signals over fiber-optic cable. It is used to transmit voice, data, and video over long distances.
- Splice loss: The amount of light that is lost as it travels through a fiber-optic splice. This is measured in decibels (dB) and can affect the overall performance of the fiber-optic network.
- Splicing: The process of joining two fiber-optic cables together. This can be done using fusion splicing or mechanical splicing.
- Wavelength division multiplexing (WDM): A technology that allows multiple channels of data to be transmitted over a single fiber-optic cable. It increases the capacity of the cable and allows for faster internet speeds.
- Wavelength locker: A device that locks the wavelength of a laser to a specific value.
- Wavelength selective switch (WSS): A device that allows to switch the wavelength channels individually in a WDM network.
- Wavelength: The color of light that is used to transmit data over a fiber-optic cable. Different wavelengths are used to transmit data at different speeds and over different distances.
- Wavelength-selective switch (WSS): A device that allows to switch the wavelength channels individually in a WDM network.
- WDM (Wavelength Division Multiplexing) : A technology that allows multiple channels of data to be transmitted over a single fiber-optic cable. It increases the capacity of the cable and allows for faster internet speeds.
- WDM (Wavelength Division Multiplexing): A technology that allows multiple channels of data to be transmitted over a single fiber-optic cable. It increases the capacity of the cable and allows for faster internet speeds.
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