Temperature compensating equipment for avalanche photodiode optical receiver

A technology of temperature compensation and avalanche optoelectronics, applied in electromagnetic receivers, discharge tubes, electromagnetic transceivers, etc., can solve problems such as linearization of resistance values, high signal-to-noise ratio bias voltage, and high temperature dependence
CN1516362AInactive Publication Date: 2004-07-28SAMSUNG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SAMSUNG ELECTRONICS CO LTD
Publication Date
2004-07-28
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

Disclosed is a temperature-compensating device for an APD optical-receiver system using an APD (Avalanche Photo Diode). The device includes a temperature-compensating circuit which employs a digital potentiometer capable of linear compensation through data look-up in compensating the decrease in gain caused by the temperature change of the APD.
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Description

technical field

[0001] The present invention relates to an optical receiver system, and more particularly, to a temperature compensation device for compensating for temperature-related performance loss in an optical receiving device employing an avalanche photodiode (APD). Background technique

[0002] When light is incident on a photodiode and a reverse bias voltage is applied to it in increments, electrons are created and accelerated in a high electric field, causing atoms to collide with each other. As a result, an avalanche phenomenon occurs in which new electrons and holes are generated. Avalanche photodiodes (APDs) are used to convert optical signals into electrical signals and serve as light receiving elements in optical communication systems. In addition, APD has characteristics suitable for use in high-speed digital lines.

[0003] Also, APDs have their own gain control and are capable of detecting very low energy levels of light. Therefore, APD is preferred by d...

Claims

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