Distinct Lasing Operation From Chirped InAs/InP Quantum-Dash Laser

Mohammed Zahed Mustafa Khan; Tien Khee Ng; Chi-Sen Lee; Dalaver H. Anjum; Dong Kyu Cha; Pallab K. Bhattacharya; Boon S. Ooi

doi:10.1109/JPHOT.2013.2272781

Distinct Lasing Operation From Chirped InAs/InP Quantum-Dash Laser

Mohammed Zahed Mustafa Khan, Tien Khee Ng, Chi-Sen Lee, Dalaver H. Anjum, Dong Kyu Cha, Pallab K. Bhattacharya, Boon S. Ooi

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

4 Scopus citations

Abstract

We study the enhanced inhomogeneity across the InAs quantum-dash (Qdash) layers by incorporating a chirped AlGaInAs barrier thickness in the InAs/InP laser structure. The lasing operation is investigated via Fabry-Pérot ridge-waveguide laser characterization, which shows a peculiar behavior under quasi-continuous-wave (QCW) operation. Continuous energy transfer between different dash ensembles initiated quenching of lasing action among certain dash groups, causing a reduced intensity gap in the lasing spectra. We discuss these characteristics in terms of the quasi-zero-dimensional density of states (DOS) of dashes and the active region inhomogeneity. © 2009-2012 IEEE.

Original language	English (US)
Pages (from-to)	1501308-1501308
Number of pages	1
Journal	IEEE Photonics Journal
Volume	5
Issue number	4
DOIs	https://doi.org/10.1109/JPHOT.2013.2272781
State	Published - Aug 2013

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10.1109/JPHOT.2013.2272781

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title = "Distinct Lasing Operation From Chirped InAs/InP Quantum-Dash Laser",

abstract = "We study the enhanced inhomogeneity across the InAs quantum-dash (Qdash) layers by incorporating a chirped AlGaInAs barrier thickness in the InAs/InP laser structure. The lasing operation is investigated via Fabry-P{\'e}rot ridge-waveguide laser characterization, which shows a peculiar behavior under quasi-continuous-wave (QCW) operation. Continuous energy transfer between different dash ensembles initiated quenching of lasing action among certain dash groups, causing a reduced intensity gap in the lasing spectra. We discuss these characteristics in terms of the quasi-zero-dimensional density of states (DOS) of dashes and the active region inhomogeneity. {\textcopyright} 2009-2012 IEEE.",

author = "Khan, {Mohammed Zahed Mustafa} and Ng, {Tien Khee} and Chi-Sen Lee and Anjum, {Dalaver H.} and Cha, {Dong Kyu} and Bhattacharya, {Pallab K.} and Ooi, {Boon S.}",

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doi = "10.1109/JPHOT.2013.2272781",

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AU - Khan, Mohammed Zahed Mustafa

AU - Ng, Tien Khee

AU - Lee, Chi-Sen

AU - Anjum, Dalaver H.

AU - Cha, Dong Kyu

AU - Bhattacharya, Pallab K.

AU - Ooi, Boon S.

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2013/8

Y1 - 2013/8

N2 - We study the enhanced inhomogeneity across the InAs quantum-dash (Qdash) layers by incorporating a chirped AlGaInAs barrier thickness in the InAs/InP laser structure. The lasing operation is investigated via Fabry-Pérot ridge-waveguide laser characterization, which shows a peculiar behavior under quasi-continuous-wave (QCW) operation. Continuous energy transfer between different dash ensembles initiated quenching of lasing action among certain dash groups, causing a reduced intensity gap in the lasing spectra. We discuss these characteristics in terms of the quasi-zero-dimensional density of states (DOS) of dashes and the active region inhomogeneity. © 2009-2012 IEEE.

AB - We study the enhanced inhomogeneity across the InAs quantum-dash (Qdash) layers by incorporating a chirped AlGaInAs barrier thickness in the InAs/InP laser structure. The lasing operation is investigated via Fabry-Pérot ridge-waveguide laser characterization, which shows a peculiar behavior under quasi-continuous-wave (QCW) operation. Continuous energy transfer between different dash ensembles initiated quenching of lasing action among certain dash groups, causing a reduced intensity gap in the lasing spectra. We discuss these characteristics in terms of the quasi-zero-dimensional density of states (DOS) of dashes and the active region inhomogeneity. © 2009-2012 IEEE.

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SP - 1501308

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JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

IS - 4

ER -

Distinct Lasing Operation From Chirped InAs/InP Quantum-Dash Laser

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