Analysis of the effect of thermal chirp on interferometric homodyne and heterodyne crosstalk in optical communication systems employing directly modulated DFB lasers

Efraim Rotem; Dan Sadot

doi:10.1109/JLT.2005.853127

Analysis of the effect of thermal chirp on interferometric homodyne and heterodyne crosstalk in optical communication systems employing directly modulated DFB lasers

Efraim Rotem, Dan Sadot

Department of Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A closed-form expression is derived for the probability density function (pdf) of the beat noise created by homodyne and heterodyne interferometric crosstalk in optical communication systems employing directly modulated distributed feedback lasers at bit rates between 155 Mb/s and 2.5 Gb/s. Thermal chirp is shown to be the predominant chirp mechanism affecting homodyne-crosstalk-induced penalty at bit rates up to 2.5 Gb/s. Theoretical calculations of the crosstalk-induced power penalty are verified experimentally.

Original language	English
Pages (from-to)	2662-2672
Number of pages	11
Journal	Journal of Lightwave Technology
Volume	23
Issue number	9
DOIs	https://doi.org/10.1109/JLT.2005.853127
State	Published - 1 Sep 2005

Keywords

Distributed feedback lasers
Error analysis
Laser chirp
Optical communication
Optical crosstalk
Optical fiber interference
Optical modulation
Optical noise
Power penalties
Semiconductor lasers

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2005.853127

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title = "Analysis of the effect of thermal chirp on interferometric homodyne and heterodyne crosstalk in optical communication systems employing directly modulated DFB lasers",

abstract = "A closed-form expression is derived for the probability density function (pdf) of the beat noise created by homodyne and heterodyne interferometric crosstalk in optical communication systems employing directly modulated distributed feedback lasers at bit rates between 155 Mb/s and 2.5 Gb/s. Thermal chirp is shown to be the predominant chirp mechanism affecting homodyne-crosstalk-induced penalty at bit rates up to 2.5 Gb/s. Theoretical calculations of the crosstalk-induced power penalty are verified experimentally.",

keywords = "Distributed feedback lasers, Error analysis, Laser chirp, Optical communication, Optical crosstalk, Optical fiber interference, Optical modulation, Optical noise, Power penalties, Semiconductor lasers",

author = "Efraim Rotem and Dan Sadot",

note = "Funding Information: Manuscript received September 2, 2004; revised March 16, 2005. This work was supported in part by the Israeli Science Foundation (ISF) under Contract 322/04. The authors are with the Electrical and Computer Engineering Department, Ben Gurion University, Beer-Sheva 84105, Israel (e-mail: buimov@ee.bgu. ac.il; sadot@ee.bgu.ac.il). Digital Object Identifier 10.1109/JLT.2005.853127",

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AU - Rotem, Efraim

AU - Sadot, Dan

N1 - Funding Information: Manuscript received September 2, 2004; revised March 16, 2005. This work was supported in part by the Israeli Science Foundation (ISF) under Contract 322/04. The authors are with the Electrical and Computer Engineering Department, Ben Gurion University, Beer-Sheva 84105, Israel (e-mail: buimov@ee.bgu. ac.il; sadot@ee.bgu.ac.il). Digital Object Identifier 10.1109/JLT.2005.853127

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N2 - A closed-form expression is derived for the probability density function (pdf) of the beat noise created by homodyne and heterodyne interferometric crosstalk in optical communication systems employing directly modulated distributed feedback lasers at bit rates between 155 Mb/s and 2.5 Gb/s. Thermal chirp is shown to be the predominant chirp mechanism affecting homodyne-crosstalk-induced penalty at bit rates up to 2.5 Gb/s. Theoretical calculations of the crosstalk-induced power penalty are verified experimentally.

AB - A closed-form expression is derived for the probability density function (pdf) of the beat noise created by homodyne and heterodyne interferometric crosstalk in optical communication systems employing directly modulated distributed feedback lasers at bit rates between 155 Mb/s and 2.5 Gb/s. Thermal chirp is shown to be the predominant chirp mechanism affecting homodyne-crosstalk-induced penalty at bit rates up to 2.5 Gb/s. Theoretical calculations of the crosstalk-induced power penalty are verified experimentally.

KW - Distributed feedback lasers

KW - Error analysis

KW - Laser chirp

KW - Optical communication

KW - Optical crosstalk

KW - Optical fiber interference

KW - Optical modulation

KW - Optical noise

KW - Power penalties

KW - Semiconductor lasers

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DO - 10.1109/JLT.2005.853127

M3 - Article

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JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

SN - 0733-8724

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Analysis of the effect of thermal chirp on interferometric homodyne and heterodyne crosstalk in optical communication systems employing directly modulated DFB lasers

Abstract

Keywords

ASJC Scopus subject areas

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