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Proceedings Paper

Generating optical pulses for a fast laser radar
Author(s): Ari Kilpelae; Sergey N. Vainshtein; Juha Tapio Kostamovaara
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Paper 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.

Paper Details

Date Published: 19 August 1997
PDF: 11 pages
Proc. SPIE 3101, New Image Processing Techniques and Applications: Algorithms, Methods, and Components II, (19 August 1997); doi: 10.1117/12.281286
Show Author Affiliations
Ari Kilpelae, Univ. of Oulu (Finland)
Sergey N. Vainshtein, Univ. of Oulu (Finland)
Juha Tapio Kostamovaara, Univ. of Oulu (Finland)


Published in SPIE Proceedings Vol. 3101:
New Image Processing Techniques and Applications: Algorithms, Methods, and Components II
Philippe Refregier; Rolf-Juergen Ahlers, Editor(s)

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