1.3 mu m Quantum Dot Laser in coupled-cavity-injection-grating design with bandwidth of 20 GHz under direct modulation

F. Gerschuetz; M. Fischer; J. Koeth; I. Krestnikov; A. Kovsh; C. Schilling; W. Kaiser; Sven Höfling; A. Forchel

1.3 mu m Quantum Dot Laser in coupled-cavity-injection-grating design with bandwidth of 20 GHz under direct modulation

F. Gerschuetz^*, M. Fischer, J. Koeth, I. Krestnikov, A. Kovsh, C. Schilling, W. Kaiser, Sven Höfling, A. Forchel

^*Corresponding author for this work

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

Abstract

Using a multi section laser in coupled cavity injection grating design based on 1.3 mu m InGaAs/GaAs quantum dot (QD) active region we were able to enhance the 3 dB modulation bandwidth well beyond the inherent material modulation bandwidth. The material bandwidth was determined by measurements on distributed feedback (DFB) devices to approximately 8 GHz. The special multisectional design allows interaction between the lasing mode and a second mode used as catalyst and enables a high resonance frequency of the device. Based on active QD material this approach allowed us to reach a cut off frequency of 20 GHz in the small signal response of the device. (C) 2008 Optical Society of America.

Original language	English
Pages (from-to)	5596-5601
Number of pages	6
Journal	Optics Express
Volume	16
Issue number	8
Publication status	Published - 14 Apr 2008

Keywords

DBR LASERS
FEEDBACK

Cite this

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title = "1.3 mu m Quantum Dot Laser in coupled-cavity-injection-grating design with bandwidth of 20 GHz under direct modulation",

abstract = "Using a multi section laser in coupled cavity injection grating design based on 1.3 mu m InGaAs/GaAs quantum dot (QD) active region we were able to enhance the 3 dB modulation bandwidth well beyond the inherent material modulation bandwidth. The material bandwidth was determined by measurements on distributed feedback (DFB) devices to approximately 8 GHz. The special multisectional design allows interaction between the lasing mode and a second mode used as catalyst and enables a high resonance frequency of the device. Based on active QD material this approach allowed us to reach a cut off frequency of 20 GHz in the small signal response of the device. (C) 2008 Optical Society of America.",

keywords = "DBR LASERS, FEEDBACK",

author = "F. Gerschuetz and M. Fischer and J. Koeth and I. Krestnikov and A. Kovsh and C. Schilling and W. Kaiser and Sven H{\"o}fling and A. Forchel",

year = "2008",

month = apr,

day = "14",

language = "English",

volume = "16",

pages = "5596--5601",

journal = "Optics Express",

issn = "1094-4087",

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TY - JOUR

T1 - 1.3 mu m Quantum Dot Laser in coupled-cavity-injection-grating design with bandwidth of 20 GHz under direct modulation

AU - Gerschuetz, F.

AU - Fischer, M.

AU - Koeth, J.

AU - Krestnikov, I.

AU - Kovsh, A.

AU - Schilling, C.

AU - Kaiser, W.

AU - Höfling, Sven

AU - Forchel, A.

PY - 2008/4/14

Y1 - 2008/4/14

N2 - Using a multi section laser in coupled cavity injection grating design based on 1.3 mu m InGaAs/GaAs quantum dot (QD) active region we were able to enhance the 3 dB modulation bandwidth well beyond the inherent material modulation bandwidth. The material bandwidth was determined by measurements on distributed feedback (DFB) devices to approximately 8 GHz. The special multisectional design allows interaction between the lasing mode and a second mode used as catalyst and enables a high resonance frequency of the device. Based on active QD material this approach allowed us to reach a cut off frequency of 20 GHz in the small signal response of the device. (C) 2008 Optical Society of America.

AB - Using a multi section laser in coupled cavity injection grating design based on 1.3 mu m InGaAs/GaAs quantum dot (QD) active region we were able to enhance the 3 dB modulation bandwidth well beyond the inherent material modulation bandwidth. The material bandwidth was determined by measurements on distributed feedback (DFB) devices to approximately 8 GHz. The special multisectional design allows interaction between the lasing mode and a second mode used as catalyst and enables a high resonance frequency of the device. Based on active QD material this approach allowed us to reach a cut off frequency of 20 GHz in the small signal response of the device. (C) 2008 Optical Society of America.

KW - DBR LASERS

KW - FEEDBACK

M3 - Article

SN - 1094-4087

VL - 16

SP - 5596

EP - 5601

JO - Optics Express

JF - Optics Express

IS - 8

ER -

1.3 mu m Quantum Dot Laser in coupled-cavity-injection-grating design with bandwidth of 20 GHz under direct modulation

Abstract

Keywords

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