quadruply clad fiber

In telecommunication, a quadruply clad fiber is a single-mode optical fiber that has four claddings. Note 1: Each cladding has a refractive index lower than that of the core. With respect to one another, their relative refractive indices are, in order of distance from the core, lowest, highest, lower, higher. Note 2: A quadruply clad fiber has the advantage of very low macrobending losses. It also has two zero-dispersion points, and moderately low dispersion over a wider wavelength range than a singly clad fiber or a doubly clad fiber. Source: from Federal Standard 1037C

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proceed to select
propagation constant
propagation path obstruction
proration
protected distribution system
protocol control information
protocol data unit
provisioning
pseudorandom noise
pseudorandom number sequence

psophometer
psophometric voltage
public data transmission service
public land mobile network
pulsating direct current
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pulse address multiple access
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pumping
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