Temperature-dependent characteristics of the high-speed 850nm VCSEL

Shanshan Du; Jinbao Su; Hengjie Zhou; Huan Zhang; Pingping Qiu; Jun Deng; Qiang Kan; Yiyang Xie

doi:10.1117/12.3033973

5 July 2024 Temperature-dependent characteristics of the high-speed 850nm VCSEL

Shanshan Du, Jinbao Su, Hengjie Zhou, Huan Zhang, Pingping Qiu, Jun Deng, Qiang Kan, Yiyang Xie

Proceedings Volume 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024); 1318309 (2024) https://doi.org/10.1117/12.3033973
Event: The 3rd International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 2024, Wuhan, China

Abstract

We prepare top-emitting 850 nm vertical-cavity surface-emitting laser (VCSEL) with a large oxide-aperture of 11 µm. The temperature-dependence of the output characteristics such as optical output power, threshold current, differential resistance and small-signal modulation bandwidth (f_3dB) are investigated. At room temperature, the VCSEL achieves a maximum optical output power of 12.62 mA and a maximum f_3dB of 18.5 GHz. With the increase of temperature, the thermal rollover current and the maximum optical output power both decrease. When the temperature rises to 55℃, the f_3dB of the device remains above 18 GHz. Finally, the modulation current efficiency factor (MCEF) at different temperatures is extracted by linear fitting of the f_3dB and the square root of the bias current above the threshold.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shanshan Du, Jinbao Su, Hengjie Zhou, Huan Zhang, Pingping Qiu, Jun Deng, Qiang Kan, and Yiyang Xie "Temperature-dependent characteristics of the high-speed 850nm VCSEL", Proc. SPIE 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 1318309 (5 July 2024); https://doi.org/10.1117/12.3033973

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