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optical power Dictionary Terms

coupler
1. In color development, the chemical that combines with certain by-products of the development procedure to form a dye. 2....
attenuation coefficient
The rate of diminution of average optical power and the sum of the scattering and absorption coefficients.
optical multimeter
An instrument that measures several optical parameters, such as optical power and wavelength, with a single measurement...
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...
bend loss
The loss of optical power in an optical fiber because radiation escapes through its bends. The radiation loss caused by...
optical testing instrument
An optical testing instrument is a device or system used to evaluate and measure the performance, quality, and...
gap loss
The optical power loss caused by a space between axially aligned fibers.
source efficiency
The ratio of emitted optical power of a source to the input electrical power.
millidiopter
A unit of metric measure equivalent to 1 thousandth (or 10-3 ) of the standard unit of optical power which is the diopter (1...
optical power spectrum
Also known as the Wiener spectrum or the noise power spectrum, the optical power spectrum is a fundamental quantity in...
fiber fuse
A phenomenon in which high optical power, encountering an imperfection in an optical fiber, destroys the fiber's core and...
Fresnel lens
A Fresnel lens is a type of optical lens that consists of a series of concentric grooves or steps carved into a flat, thin...
optical power
 optoelectronic
Pertaining to a device that responds to optical power, emits or modifies optical radiation, or utilizes optical radiation...
double-clad fiber
Double-clad fiber (DCF) is a specialized optical fiber that features two concentric cladding layers surrounding a core. The...
beam profiling
Beam profiling is a technique used to characterize and analyze the spatial intensity distribution of a laser beam. It...
quantum cascade laser
A quantum cascade laser (QCL) is a type of semiconductor laser that operates based on the principles of quantum mechanics....
signal-induced noise
Noise generated in the flow of current in the photomultiplier, produced by the intentional or controlled application of...
relative intensity noise
The inherent laser amplitude noise relative to the average optical power produced by the laser; the RIN decreases rapidly as...
Murty interferometer
A form of shearing interferometer that contains a simple wedged (plane-parallel) glass plate with a nonzero optical path...
insertion loss
The total optical power loss caused by the insertion of an optical component such as a connector, splice or coupler into a...
angular misalignment
Angular deviation from the optimum alignment of source to optical waveguide, waveguide to waveguide, or waveguide to...
fiber bandwidth
The lowest frequency at which the magnitude of the fiber transfer function decreases to a specified fraction of the zero...
photodiode
A two-electrode, radiation-sensitive junction formed in a semiconductor material in which the reverse current varies with...
splice
A permanent joint whose purpose is to couple optical power among two or more ports. Also, a device whose purpose is to...
mandrel
A shaft, spindle or any object generally passed through a workpiece to hold, support or shape a particular piece during its...

(26 results found)

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