Simulation of photodetectors PIN and APD functionality in an optical communication system

Much interest has recently been expressed in investigating the basic PIN (a diode with a wide, lightly doped between a p-type semiconductor and an n-type semiconductor region). And the more complex, expensive (about 4x the cost of the PIN) and voltage-hungry APD receiver(a highly sensitive semicondu...

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Main Author:	Taher Kharraz, Osayd Maher
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/32514/1/OsaydMaherTaherKharrazMFKE2012.pdf
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spelling	my-utm-ep.325142018-05-27T07:46:40Z Simulation of photodetectors PIN and APD functionality in an optical communication system 2012-01 Taher Kharraz, Osayd Maher TK Electrical engineering. Electronics Nuclear engineering Much interest has recently been expressed in investigating the basic PIN (a diode with a wide, lightly doped between a p-type semiconductor and an n-type semiconductor region). And the more complex, expensive (about 4x the cost of the PIN) and voltage-hungry APD receiver(a highly sensitive semiconductor device that utilizes the photoelectric effect to convert light to electricity. It supplies a builtin first stage of gain through avalanche multiplication.) performances, mainly due to the on-going and high-pressured commercial demands for cost-cutting in systems incorporating these ultra-fast receivers. APD photodetectors have been shown as the better candidate for long haul communications, due to their internal gain availability. In the PIN photodiode, thermal noise plays the dominant role in the performance of the receiver. In the APD, both the thermal and shot noise is significant. In this report, a performance comparison of the conventional PIN photodiode with the Avalanche Photodiode (APD) in an optical communication system is presented. The effects of bandwidth, gain, extinction ratio, shot noise and thermal noise are compared and studied in detail. It was shown that the Q factor produced by each detector is heavily affected by the thermal noise in the PIN device, and by both the thermal and shot noise in the APD. It was also found that the APDs gain plays a significant role, and the shot noise has to be carefully dealt with. Additionally, the relationship of receiver sensitivity with thermal and shot noise was investigated and compared. 2012-01 Thesis http://eprints.utm.my/id/eprint/32514/ http://eprints.utm.my/id/eprint/32514/1/OsaydMaherTaherKharrazMFKE2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Taher Kharraz, Osayd Maher Simulation of photodetectors PIN and APD functionality in an optical communication system
description	Much interest has recently been expressed in investigating the basic PIN (a diode with a wide, lightly doped between a p-type semiconductor and an n-type semiconductor region). And the more complex, expensive (about 4x the cost of the PIN) and voltage-hungry APD receiver(a highly sensitive semiconductor device that utilizes the photoelectric effect to convert light to electricity. It supplies a builtin first stage of gain through avalanche multiplication.) performances, mainly due to the on-going and high-pressured commercial demands for cost-cutting in systems incorporating these ultra-fast receivers. APD photodetectors have been shown as the better candidate for long haul communications, due to their internal gain availability. In the PIN photodiode, thermal noise plays the dominant role in the performance of the receiver. In the APD, both the thermal and shot noise is significant. In this report, a performance comparison of the conventional PIN photodiode with the Avalanche Photodiode (APD) in an optical communication system is presented. The effects of bandwidth, gain, extinction ratio, shot noise and thermal noise are compared and studied in detail. It was shown that the Q factor produced by each detector is heavily affected by the thermal noise in the PIN device, and by both the thermal and shot noise in the APD. It was also found that the APDs gain plays a significant role, and the shot noise has to be carefully dealt with. Additionally, the relationship of receiver sensitivity with thermal and shot noise was investigated and compared.
format	Thesis
qualification_level	Master's degree
author	Taher Kharraz, Osayd Maher
author_facet	Taher Kharraz, Osayd Maher
author_sort	Taher Kharraz, Osayd Maher
title	Simulation of photodetectors PIN and APD functionality in an optical communication system
title_short	Simulation of photodetectors PIN and APD functionality in an optical communication system
title_full	Simulation of photodetectors PIN and APD functionality in an optical communication system
title_fullStr	Simulation of photodetectors PIN and APD functionality in an optical communication system
title_full_unstemmed	Simulation of photodetectors PIN and APD functionality in an optical communication system
title_sort	simulation of photodetectors pin and apd functionality in an optical communication system
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/32514/1/OsaydMaherTaherKharrazMFKE2012.pdf
_version_	1747816020635025408

Simulation of photodetectors PIN and APD functionality in an optical communication system

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