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28 March 2023 1030 nm multilayer oxide aperture VCSELs with 25 GHz modulation bandwidth and 40 Gb/s NRZ transmission
Yanjing Wang, Cunzhu Tong, Xiaoqian Luan, Ning Jiang, Haixia Tong, Lijie Wang, Sicong Tian
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Proceedings Volume 12601, SPIE-CLP Conference on Advanced Photonics 2022; 126010A (2023) https://doi.org/10.1117/12.2666696
Event: SPIE-CLP Conference on Advanced Photonics 2022, 2022, Online Only
Abstract
We present the design, fabrication, and performance of high-speed oxide-confined 1030 nm vertical-cavity surfaceemitting lasers (VCSELs) with a short optical cavity, and multiple oxide apertures. High-speed modulation was facilitated by using the shortest possible cavity of a half-wavelength length and multiple oxide apertures to enhance the confinement of optical fields and reduce capacitance. We carefully optimized the multiple quantum wells and the doping profile in order to achieve a high-speed operation. The developed VCSELs exhibit a modulation bandwidth exceeding 25.1 GHz at 25°C, supporting back-to-back data rate up to 40 Gb/s under binary non-return-to-zero (NRZ) modulation.
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Yanjing Wang, Cunzhu Tong, Xiaoqian Luan, Ning Jiang, Haixia Tong, Lijie Wang, and Sicong Tian "1030 nm multilayer oxide aperture VCSELs with 25 GHz modulation bandwidth and 40 Gb/s NRZ transmission", Proc. SPIE 12601, SPIE-CLP Conference on Advanced Photonics 2022, 126010A (28 March 2023); https://doi.org/10.1117/12.2666696
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KEYWORDS
Vertical cavity surface emitting lasers
Modulation
Oxides
Quantum wells
Aluminum
Capacitance
Fabrication
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