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Alluxa - Optical Coatings LB 8/23
receiver Dictionary Terms

receiver
A detector and signal demodulator used in optical communications systems to receive a signal and often to translate it into an electronic signal.
horizontal drive control
A device that controls the output of a television receiver's horizontal oscillator.
fiber optic transceiver
A fiber optic transceiver, often simply referred to as an "optical transceiver," is a device used in fiber optic...
television monitor
A television receiver that receives the signals generated by a television camera directly, or remotely through a radio...
heterodyning
In optical communications, the translation of optical signals into radio signals, lowering their frequency in detection from...
averaged threshold receiver
A receiver for optical communications systems consisting of a symmetric binary, pulse-code-modulated transmitter, a...
free-space optics
Free-space optics (FSO), also known as optical wireless communication or optical wireless networking, refers to the...
photoconductive antenna
Photoconductive antenna (PCA) is a semiconductor element that generates or detects high-frequency electromagnetic signals....
effective beam
In photoelectric sensing, the portion of the transmitted beam that actually functions in the system; the diameter of the...
picture tube
A term referring to the cathode-ray tube used in television receivers.
PIN photodiode
A PIN photodiode is a type of photodetector or semiconductor device used to convert light signals into electrical signals....
link
In data communications, the instrumentation connecting two stations: transmitters, receivers and the cable that runs between...
intermediate frequency
In a heterodyne optical receiver, the frequency that is the difference between that of an incoming laser signal and that of...
flux concentration
The intensity of radiation transmitted to a receiver.
receiver primaries
Also known as display primaries. Colors formed by a television receiver that are of constant chromaticity and variable...
feeder
A waveguide or coaxial cable that transmits a signal from an antenna to a receiver or from a transmitter to an antenna.
lidar
Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and...
camera chain
The term sometimes used to describe the sequential arrangement of components in a video system -- from transmitter to...
advanced compatible television
A television format with enhanced vertical resolution (400 lines as compared with the standard 330) that, unlike...
coherent communications
A fiber optic communications system that works on the principles of homodyning or heterodyning. The transmitting laser...
homodyne receiver
A type of receiver utilizing a local oscillator phase-locked to the incoming signal.
video detector
A device, such as a thermionic or crystal diode, that is introduced into the vision channel of a television receiver to...
InGaAs photodiode
An InGaAs photodiode refers to a photodetector device that is constructed using a semiconductor material composed of a...
transponder
A receiver-transmitter device that automatically transmits a signal when the proper interrogating signal is received.
inverse square law
The law stating that the illuminance (or irradiance) from a point source varies as the inverse square of the distance...
facsimile machine
A device used to transmit and receive images that have been converted to electrical signals over regular telephone lines; it...
connector
Hardware installed on fiber cable ends to provide cable attachment to a transmitter, receiver or other cable. Usually a...
kinescope
A cathode-ray tube that serves as a picture tube in a television receiver. The signal representing the picture intensity is...
local oscillator laser
In coherent optical communications systems, a laser used at the receiving end to produce a steady wave that is combined with...
television transmitter
An electronic device used to encode video and audio signals of a television camera into radio waves that are broadcast to...
beat
The signal formed when two signals, such as light waves, of different frequencies are present simultaneously in a nonlinear...
jitter
1. In relation to cathode-ray tube displays, errors in the signal's amplitude, phase or both that result in small, rapid...
heterodyne receiver
A type of receiver that uses a local oscillator at a frequency deliberately offset from that of the incoming signal. It is...
diffuse sensing mode
Use of a photoelectric receiver to sense an object's presence by detecting a small amount of the emitter's light that is...
Gordon-Haus effect
Temporal jitter at a signal's receiver when amplified noise causes frequency shifts, as with a soliton traveling through an...
photoelectric receiver
An instrument that uses a photocell to detect and measure the intensity of incident light.
equalized-response densitometer
A densitometer having a receiver that indicates when a desired radiation level has been attained.
loss budget
The total optical power loss in a system. The loss budget is often stated in terms of the transmitted power and the power...
modulator
A modulator is a device or component that modifies a carrier signal in order to encode information for transmission over a...
Doppler signal
A signal traveling from transmitter to receiver that has an altered frequency due to the Doppler effect.
exposure time
The length of time during which the receiver is irradiated.

(41 results found)

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