Distinct Lasing Operation From Chirped InAs/InP Quantum-Dash Laser
AuthorsKhan, Mohammed Zahed Mustafa
Ng, Tien Khee
Anjum, Dalaver H.
Cha, Dong Kyu
Bhattacharya, Pallab K.
Ooi, Boon S.
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
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AbstractWe 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.
CitationKhan MZM, Ng TK, Chi-Sen Lee, Anjum DH, Cha D, et al. (2013) Distinct Lasing Operation From Chirped InAs/InP Quantum-Dash Laser. IEEE Photonics Journal 5: 1501308-1501308. doi:10.1109/JPHOT.2013.2272781.
JournalIEEE Photonics Journal
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