Kilowatt line beam from a 905nm pulsed diode laser module for LiDAR applications

Jingwei Wang; Xuejie Liang; Lei Cai; Wenjie Fan

doi:10.1117/12.2573403

10 October 2020 Kilowatt line beam from a 905nm pulsed diode laser module for LiDAR applications

Jingwei Wang, Xuejie Liang, Lei Cai, Wenjie Fan

Proceedings Volume 11545, Semiconductor Lasers and Applications X; 1154502 (2020) https://doi.org/10.1117/12.2573403
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

For current 905nm pulsed laser diode(PLD) for LiDAR applications, most of them are single channel chips each with a power range of 75W-120W designed for scanning multiple single points. In this work, kilowatt 905nm light source based on eight channel 905nm PLD mini-bars had been designed and packaged using flip chip bonding technology. A series of kilowatt 905nm PLD modules were fabricated and characterized. The maximum output power of 982W limited by the pulse driver was obtained for the first time under the condition of 100V@5ns,100kHz at room temperature. The spectral width of FWHM and FW90%E was 5.1nm and 7.2nm, respectively. The far field divergence test data indicated that the fast axis divergence@1/e2 and slow axis divergence@1/e2 was 0.38°and 27.59°, respectively. In the future, the fast axis divergence@1/e2 and the slow axis FoV can be designed and optimized for any particular LiDAR system.

Conference Presentation

Citation Download Citation

Jingwei Wang, Xuejie Liang, Lei Cai, and Wenjie Fan "Kilowatt line beam from a 905nm pulsed diode laser module for LiDAR applications", Proc. SPIE 11545, Semiconductor Lasers and Applications X, 1154502 (10 October 2020); https://doi.org/10.1117/12.2573403

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