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

Inactive Publication Date: 2004-07-28
SAMSUNG ELECTRONICS CO LTD
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the disadvantage of APD is that its signal-to-noise ratio (S / N) and bias voltage tend to be high and have high temperature dependence due to the current amplification effect caused by the avalanche phenomenon
Furthermore, it is difficult to linearize the resistance value as in Equation 1, which requires the resistance value to be represented by an analog method as a fractional equation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Temperature compensating equipment for avalanche photodiode optical receiver
  • Temperature compensating equipment for avalanche photodiode optical receiver
  • Temperature compensating equipment for avalanche photodiode optical receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For the purpose of simplicity and clarification, detailed descriptions of known functions and configurations included therein are omitted since they may obscure the gist of the present invention.

[0028] Figure 4 A configuration of an APD optical receiver system with a temperature compensation device according to an embodiment of the present invention is shown. As shown, the voltage generating section 11 may include a "MAXIM1771" chip manufactured by Maxim Integrated Products, Inc., located at 120 SanGabriel Dr., Sunnyvale, CA, USA, and uses PWM power switching technology so that the voltage is switched with a minimum current. Amplification; The voltage generation section 11 generates a reverse configuration voltage in the range of 30V to 40V in response to an input voltage of 5V to 8V. Note that the APD 131, which is independent of the Maxim ch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/10H01J40/14H01L31/02H02M3/156H04B10/07H04B10/40H04B10/50H04B10/60H04B10/67H04B10/69
CPCH01L31/02027H02M3/156H04B10/2507H04B10/60
Inventor 郑熙远黄星泽李汉林姜秉昌
Owner SAMSUNG ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap