High performance 1.55um fiber laser for autonomous driving lidars

Chun He; Xizhi Liu; Xiaolei Yu; Huankun Zhang; Fugen Liang; Yong Li; Lei Gao

doi:10.1117/12.3000589

12 March 2024 High performance 1.55um fiber laser for autonomous driving lidars

Chun He, Xizhi Liu, Xiaolei Yu, Huankun Zhang, Fugen Liang, Yong Li, Lei Gao

Proceedings Volume 12865, Fiber Lasers XXI: Technology and Systems; 128650V (2024) https://doi.org/10.1117/12.3000589
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We developed a high power and high efficiency 1.55 μm fiber laser for eye-safe autonomous driving lidars. A drive current directly modulated DFB laser provides a seed pulse selectable from 2 ns to 10 ns. A high gain (47 dB), low ASE noise (-23 dB), and cladding-pumped multi-pass fiber amplifier is designed and used as the power amplifier. The laser can deliver laser pulses from 80 kHz to 10 MHz with peak powers greater than 5 kW, and pulse energy more than 10 uJ with a single output mode of M² = 1.05. The laser works in -40 °C to approximately 105 °C environment temperature range with total consumed electrical power ⪅10 W.

Conference Presentation

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

Citation Download Citation

Chun He, Xizhi Liu, Xiaolei Yu, Huankun Zhang, Fugen Liang, Yong Li, and Lei Gao "High performance 1.55um fiber laser for autonomous driving lidars", Proc. SPIE 12865, Fiber Lasers XXI: Technology and Systems, 128650V (12 March 2024); https://doi.org/10.1117/12.3000589

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