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Advanced injection seeder for various applications: form LIDARs to supercontinuum sources
Author(s): Pawel Grzes
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Paper Abstract

The paper describes an injection seeder driver (prototype) for a directly modulated semiconductor laser diode. The device provides adjustable pulse duration and repetition frequency to shape an output signal. A temperature controller stabilizes a laser diode spectrum. Additionally, to avoid a back oscillation, redundant power supply holds a generation until next stages shut down. Low EMI design and ESD protection guarantee stable operation even in a noisy environment. The controller is connected to the PC via USB and parameters of the pulse are digitally controlled through a graphical interface. The injection seeder controller can be used with a majority of commercially available laser diodes. In the experimental setup a telecommunication DFB laser with 4 GHz bandwidth was used. It allows achieving subnanosecond pulses generated at the repetition rate ranging from 1 kHz to 50 MHz. The developed injection seeder controller with a proper laser diode can be used in many scientific, industrial and medical applications.

Paper Details

Date Published: 1 December 2017
PDF: 5 pages
Proc. SPIE 10603, Photonics, Devices, and Systems VII, 1060302 (1 December 2017); doi: 10.1117/12.2292454
Show Author Affiliations
Pawel Grzes, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10603:
Photonics, Devices, and Systems VII
Karel Fliegel; Petr Páta, Editor(s)

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