avalanche photodiode

(from the article `telecommunications media`) The two most common kinds of optoelectronic receivers for optical links are the positive-intrinsic-negative (PIN) photodiode and the avalanche ...
Found on http://www.britannica.com/eb/a-z/a/129

avalanche photodiode

photodiode operating with a reverse bias such that the primary photocurrent undergoes amplification within the diode
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=521-04-44

avalanche photodiode

a photodiode operating with a bias voltage such that the primary photocurrent undergoes amplification by cumulative multiplication of charge carriers NOTE - As the reverse-bias voltage approaches the breakdown voltage, hole-electron pairs created by absorbed photons acquire sufficient energy to create additional hole-electron pairs when they collid...
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=731-06-30

avalanche photodiode

photodiode operating with a bias electromotive force such that the primary photocurrent undergoes amplification through avalanche breakdown at the junction
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=845-05-40

Avalanche photodiode

If very high gain is needed (105 to 106), certain APDs (single-photon avalanche diodes) can be operated with a reverse voltage above the APD`s breakdown voltage. In this case, the APD needs to have its signal current limited and quickly diminished. Active and passive current quenching techniques have been used for this purpose. APDs that operate ....
Found on http://en.wikipedia.org/wiki/Avalanche_photodiode
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