High-power 1.5μm laser diodes for LIDAR applications

We report on the development of high peak power laser diodes emitting in the 1.5μm wavelength band for eye-safe LIDAR applications. Different techniques for wavelength locking to and operation with a narrow emission spectrum are discussed. Furthermore, we review the strategies to increase the beam brightness. Recent progress in new epitaxial layer designs enabling high peak powers is also discussed. Finally, we discuss the performance of the laser diodes in terms of improvements they render possible for high-performance LIDAR systems.

Authors:
Viheriälä Jukka, Aho Antti T., Uusitalo Topi, Lyytikäinen Jari, Hallman Lauri, Ryvkin Boris S., Avrutin Eugene A., Kostamovaara Juha T., Guina Mircea

Publication type:
A4 Article in conference proceedings

Place of publication:
2019 IEEE High Power Diode Lasers and Systems Conference (HPD)

Keywords:
Bulk gain region, DBR-laser, Eye safe laser, Gain Switching, high brashness laser, LIDAR, Tapered laser

Published:

Full citation:
J. Viheriälä et al., “High-power 1.5μm laser diodes for LIDAR applications,” 2019 IEEE High Power Diode Lasers and Systems Conference (HPD), Coventry, United Kingdom, 2019, pp. 9-10, doi: 10.1109/HPD48113.2019.8938669

DOI:
https://doi.org/10.1109/HPD48113.2019.8938669

Read the publication here:
http://urn.fi/urn:nbn:fi-fe2020062545671