Degradation of the frequency response of photodiodes in measurements of strong optical signals

Revista elektron

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Field Value
 
Title Degradation of the frequency response of photodiodes in measurements of strong optical signals
Degradación de la respuesta en frecuencia de fotodiodos en mediciones de señales ópticas intensas
 
Creator Arrigo, Gastón
Sorichetti, Patricio
Acosta, Eduardo Omar
 
Subject PIN photodiode; Detector bandwidth; Phase Response
fotodectector; respuesta en frecuencia; diodo PIN
 
Description In this paper we present measurements that reveal changes in the frequency response of a PIN-type photodetector with the increase of the intensity of the light reaching the detector. In particular, two effects are observed at high illumination levels: the bandwidth of the detector decreases and the phase response is modified. For low intensities the bandwidth follows a power law with exponent -1 with the average current of the photodetector, but at high illumination the exponent tends to -0.5.
En este trabajo se presentan mediciones que revelan cambios en la respuesta en frecuencia de un fotodetector tipo PIN debida al cambio en la intensidad de la luz que llega al detector. En particular, se observan dos efectos a altos niveles de iluminacion: el ancho de banda del detector disminuye y se modifica su respuesta de fase. Para bajas intensidades el ancho de banda sigue una ley de potencias con exponente -1 con la corriente media del fotodetector, pero, para alta iluminacion, el exponente tiende a -0,5.
 
Publisher FIUBA
 
Contributor UBA
UBA
 
Date 2017-11-11
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion


 
Format application/pdf
text/html
 
Identifier http://elektron.fi.uba.ar/index.php/elektron/article/view/23
10.37537/rev.elektron.1.2.23.2017
 
Source Elektron; Vol 1, No 2 (2017); 75-78
Elektron; Vol 1, No 2 (2017); 75-78
2525-0159
 
Language spa
 
Relation http://elektron.fi.uba.ar/index.php/elektron/article/view/23/31
http://elektron.fi.uba.ar/index.php/elektron/article/view/23/158
 
Rights Copyright (c) 2017 Eduardo Omar Acosta
http://creativecommons.org/licenses/by-nc-nd/4.0
 

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