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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
http://eprints.utm.my/id/eprint/32514/
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spelling my.utm.325142018-05-27T07:46:40Z http://eprints.utm.my/id/eprint/32514/ Simulation of photodetectors PIN and APD functionality in an optical communication system 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 NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/32514/1/OsaydMaherTaherKharrazMFKE2012.pdf Taher Kharraz, Osayd Maher (2012) Simulation of photodetectors PIN and APD functionality in an optical communication system. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
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
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
publishDate 2012
url http://eprints.utm.my/id/eprint/32514/1/OsaydMaherTaherKharrazMFKE2012.pdf
http://eprints.utm.my/id/eprint/32514/
_version_ 1643649063024852992
score 13.211869

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