A type of lidar sensor uses a 1645 nm laser using TiS2 as a saturable absorber

Guoqiang Li; Chi Wu; Juan Su

doi:10.1117/12.2539002

18 December 2019 A type of lidar sensor uses a 1645 nm laser using TiS₂ as a saturable absorber

Guoqiang Li, Chi Wu, Juan Su

Proceedings Volume 11333, AOPC 2019: Advanced Laser Materials and Laser Technology; 1133307 (2019) https://doi.org/10.1117/12.2539002
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

A laser radar used in an automatic driving system was designed to operate normally in rainy and foggy weather while ensuring eye safety. The laser radar uses the principle of triangulation to measure the distance while adjusting the position of the focused light source by the beam expanding and focusing module. The laser radar used a home-made passively Q-switched Er:YAG laser that used a home-made TiS₂ as a saturable absorber with an operating wavelength of 1645 nm. At an absorption pump power of 10.54 W, the passively Q-switched Er:YAG laser had a pulse repetition frequency of 37 kHz, a maximum average output power of 1.44 W, a pulse duration of 1.1 μs, and a pulse energy of 36.39 μJ.

Citation Download Citation

Guoqiang Li, Chi Wu, and Juan Su "A type of lidar sensor uses a 1645 nm laser using TiS₂ as a saturable absorber", Proc. SPIE 11333, AOPC 2019: Advanced Laser Materials and Laser Technology, 1133307 (18 December 2019); https://doi.org/10.1117/12.2539002

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