Generating optical pulses for a fast laser radar

Ari Kilpelae; Sergey N. Vainshtein; Juha Tapio Kostamovaara

doi:10.1117/12.281286

19 August 1997 Generating optical pulses for a fast laser radar

Ari Kilpelae, Sergey N. Vainshtein, Juha Tapio Kostamovaara

Proceedings Volume 3101, New Image Processing Techniques and Applications: Algorithms, Methods, and Components II; (1997) https://doi.org/10.1117/12.281286
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany

Abstract

Laser pulsing techniques utilizing gain switching and Q- switching operation modes of commercially available SH and DH laser diodes have been studied to realize powerful and fast laser pulses for industrial applications of pulsed time-of-flight laser range finding techniques. Pulses with the length of 100 ps to some nanoseconds and peak power level of 50 to 200 W have been aimed at. As an example, with a high speed current driver realized with a combination of an avalanche transistor matrix and a DSRD, an isolated pulse with a peak power level of 200 W and a pulse length of 100 ps was achieved from a DH laser diode operating under the gain switching region. Internal Q-switching mechanisms of SH laser diodes enable the lasers to achieve a pulse power of 100 W and a pulse width in the range of 100-200 ps.

Citation Download Citation

Ari Kilpelae, Sergey N. Vainshtein, and Juha Tapio Kostamovaara "Generating optical pulses for a fast laser radar", Proc. SPIE 3101, New Image Processing Techniques and Applications: Algorithms, Methods, and Components II, (19 August 1997); https://doi.org/10.1117/12.281286

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