MBE-grown 1.3 micron InGaAsN/GaAs double QW VCSELs with very low-threshold current density under room temperature CW operation

Chih-Ming Lai; Jyh-Shyang Wang; Ru-Shang Hsiao; Li-Chung Wei; Gray Lin; Kun-Feng Lin; Hui-Yu Liu; Alexey R. Kovsh; Nikolai N. Maleev; Daniil A. Livshits; Jenn-Fang Chen; Jim-Young Chi

doi:10.1117/12.545345

1 September 2004 MBE-grown 1.3 micron InGaAsN/GaAs double QW VCSELs with very low-threshold current density under room temperature CW operation

Chih-Ming Lai, Jyh-Shyang Wang, Ru-Shang Hsiao, Li-Chung Wei, Gray Lin, Kun-Feng Lin, Hui-Yu Liu, Alexey R. Kovsh, Nikolai N. Maleev, Daniil A. Livshits, Jenn-Fang Chen, Jim-Young Chi

Author Affiliations +

Proceedings Volume 5452, Semiconductor Lasers and Laser Dynamics; (2004) https://doi.org/10.1117/12.545345
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

MBE growth of high quality diluted Nitride materials have been investigated. Photoluminescence intensity of high nitrogen content InGaAsN/GaAs SQW can be improved significantly by decreasing the growth temperature due to suppressd phase separation of InGaAsN alloy. The longest room temperature PL peak wavelength obtained in this study is 1.59 μm by increasing the nitrogen composition up to 5.3%. High performance ridge-waveguide InGaAsN/GaAs single quantum well lasers at wavelength 1.3 μm have been demonstrated. Threshold current density of 0.57 KA/cm² was achieved for the lasers with a 3-μm ridge width and a 2-mm cavity length. Slope efficiencies of 0.67 W/A was obtained with 1 mm cavity length. The cw kink-free output power of wavelength 1.3 μm single lateral mode laser is more than 200 mW, and the maximum total wallplug efficiency of 29% was obtained. Furthermore, monolithic MBE-grown vertical cavity surface emitting lasers (VCSELs) on GaAs substrate with an active region based on InGaAsN/GaAs double quantum wells emitting at 1304 nm with record threshold current density below 2 KA/cm² also have been demonstrated. The CW output power exceeds 1 mW with an initial slope efficiency of 0.15 W/A. Such low threshold current density indicates the high quality of InGaAsN/GaAs QW active region.

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Chih-Ming Lai, Jyh-Shyang Wang, Ru-Shang Hsiao, Li-Chung Wei, Gray Lin, Kun-Feng Lin, Hui-Yu Liu, Alexey R. Kovsh, Nikolai N. Maleev, Daniil A. Livshits, Jenn-Fang Chen, and Jim-Young Chi "MBE-grown 1.3 micron InGaAsN/GaAs double QW VCSELs with very low-threshold current density under room temperature CW operation", Proc. SPIE 5452, Semiconductor Lasers and Laser Dynamics, (1 September 2004); https://doi.org/10.1117/12.545345

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KEYWORDS

Nitrogen

Gallium arsenide

Quantum wells

Vertical cavity surface emitting lasers

Pulsed laser operation

Continuous wave operation

Indium

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