BURST-MODE RECEIVER, AND METHOD OF BIAS VOLTAGE CONTROL FOR APD OF BURST-MODE RECEIVER

A burst-mode receiver for receiving burst optical signals having different intensities by a reversely connected APD, including: a current detection circuit outputting a photocurrent that is generated by APD and is output from a current mirror circuit (CMC) as a voltage proportional to the photocurre...

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Bibliographic Details
Main Authors IHARA SUSUMU, NOGAMI MASAMICHI, YOSHIMA SATOSHI, NODA MASAKI
Format Patent
LanguageEnglish
Published 07.01.2016
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
SELECTING
TRANSMISSION
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Summary:A burst-mode receiver for receiving burst optical signals having different intensities by a reversely connected APD, including: a current detection circuit outputting a photocurrent that is generated by APD and is output from a current mirror circuit (CMC) as a voltage proportional to the photocurrent, the CMC being connected in series between a power supply and APD; a peak detector circuit detecting and holding a peak value of the output voltage of the current detection circuit; a resistor connection switching circuit, which is inserted between the CMC and APD, for connecting a series resistor to APD in series by switching; and a comparator outputting a switching signal for switching the resistor connection switching circuit so that the series resistor is connected to APD in series in a case where a voltage detected by the peak detector circuit is equal to or more than a predetermined threshold.
Bibliography:Application Number: US201314768844