Spectral Linewidth of DFB Lasers Including the Effects of Spatial Holeburning and Nonuniform Current Injection

X. Pan; H. Olesen; B. Tromborg

doi:10.1109/68.54690

Spectral Linewidth of DFB Lasers Including the Effects of Spatial Holeburning and Nonuniform Current Injection

X. Pan, H. Olesen, B. Tromborg

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

42 Citationer (Scopus)

Abstract

A new analytic expression for the linewidth of DFB lasers is derived. Local fluctuations in carrier density are shown to give a significant contribution to laser linewidth in the presence of spatial holeburning. In a single-electrode DFB laser the effect can be avoided by careful optimization of the Ω-product, but for a multielectrode DFB laser the linewidth can also be reduced by adjusting the injected current profile to compensate for spatial holeburning. Numerical results for a three-electrode λ/4-shifted DFB laser are presented.

Originalsprog	Engelsk
Tidsskrift	IEEE Photonics Technology Letters
Vol/bind	2
Udgave nummer	5
Sider (fra-til)	312-315
Antal sider	4
ISSN	1041-1135
DOI	https://doi.org/10.1109/68.54690
Status	Udgivet - maj 1990
Udgivet eksternt	Ja

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title = "Spectral Linewidth of DFB Lasers Including the Effects of Spatial Holeburning and Nonuniform Current Injection",

abstract = "A new analytic expression for the linewidth of DFB lasers is derived. Local fluctuations in carrier density are shown to give a significant contribution to laser linewidth in the presence of spatial holeburning. In a single-electrode DFB laser the effect can be avoided by careful optimization of the Ω-product, but for a multielectrode DFB laser the linewidth can also be reduced by adjusting the injected current profile to compensate for spatial holeburning. Numerical results for a three-electrode λ/4-shifted DFB laser are presented.",

author = "X. Pan and H. Olesen and B. Tromborg",

year = "1990",

month = may,

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AU - Pan, X.

AU - Olesen, H.

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Y1 - 1990/5

N2 - A new analytic expression for the linewidth of DFB lasers is derived. Local fluctuations in carrier density are shown to give a significant contribution to laser linewidth in the presence of spatial holeburning. In a single-electrode DFB laser the effect can be avoided by careful optimization of the Ω-product, but for a multielectrode DFB laser the linewidth can also be reduced by adjusting the injected current profile to compensate for spatial holeburning. Numerical results for a three-electrode λ/4-shifted DFB laser are presented.

AB - A new analytic expression for the linewidth of DFB lasers is derived. Local fluctuations in carrier density are shown to give a significant contribution to laser linewidth in the presence of spatial holeburning. In a single-electrode DFB laser the effect can be avoided by careful optimization of the Ω-product, but for a multielectrode DFB laser the linewidth can also be reduced by adjusting the injected current profile to compensate for spatial holeburning. Numerical results for a three-electrode λ/4-shifted DFB laser are presented.

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JO - IEEE Photonics Technology Letters

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ER -

Spectral Linewidth of DFB Lasers Including the Effects of Spatial Holeburning and Nonuniform Current Injection

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